CN114984907B - Heteroatom aromatic adsorbent and preparation method thereof - Google Patents
Heteroatom aromatic adsorbent and preparation method thereof Download PDFInfo
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- CN114984907B CN114984907B CN202210613675.8A CN202210613675A CN114984907B CN 114984907 B CN114984907 B CN 114984907B CN 202210613675 A CN202210613675 A CN 202210613675A CN 114984907 B CN114984907 B CN 114984907B
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- adsorbent
- aromatic hydrocarbon
- molecular sieve
- sol
- metal
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 230000032683 aging Effects 0.000 claims abstract description 28
- 238000001179 sorption measurement Methods 0.000 claims abstract description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000002808 molecular sieve Substances 0.000 claims abstract description 24
- 239000002243 precursor Substances 0.000 claims abstract description 24
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 24
- -1 heteroatom aromatic hydrocarbon Chemical class 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000011734 sodium Substances 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 125000004429 atom Chemical group 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- FYGHSUNMUKGBRK-UHFFFAOYSA-N 1,2,3-trimethylbenzene Chemical compound CC1=CC=CC(C)=C1C FYGHSUNMUKGBRK-UHFFFAOYSA-N 0.000 claims description 6
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 5
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 4
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- 125000005842 heteroatom Chemical group 0.000 claims description 3
- 239000005051 trimethylchlorosilane Substances 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 claims description 2
- 239000013335 mesoporous material Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920000428 triblock copolymer Polymers 0.000 claims description 2
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 claims description 2
- 239000005050 vinyl trichlorosilane Substances 0.000 claims description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 2
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 239000002283 diesel fuel Substances 0.000 abstract description 42
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 10
- QPUYECUOLPXSFR-UHFFFAOYSA-N 1-methylnaphthalene Chemical compound C1=CC=C2C(C)=CC=CC2=C1 QPUYECUOLPXSFR-UHFFFAOYSA-N 0.000 description 6
- 238000004523 catalytic cracking Methods 0.000 description 4
- 238000004939 coking Methods 0.000 description 4
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 4
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 3
- 125000002619 bicyclic group Chemical group 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- QNLZIZAQLLYXTC-UHFFFAOYSA-N 1,2-dimethylnaphthalene Chemical compound C1=CC=CC2=C(C)C(C)=CC=C21 QNLZIZAQLLYXTC-UHFFFAOYSA-N 0.000 description 2
- 235000016425 Arthrospira platensis Nutrition 0.000 description 2
- 240000002900 Arthrospira platensis Species 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 208000027697 autoimmune lymphoproliferative syndrome due to CTLA4 haploinsuffiency Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229940082787 spirulina Drugs 0.000 description 2
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 2
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical group [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 2
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- SZQUEWJRBJDHSM-UHFFFAOYSA-N iron(3+);trinitrate;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O SZQUEWJRBJDHSM-UHFFFAOYSA-N 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000007886 mutagenicity Effects 0.000 description 1
- 231100000299 mutagenicity Toxicity 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical group [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0211—Compounds of Ti, Zr, Hf
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/183—Physical conditioning without chemical treatment, e.g. drying, granulating, coating, irradiation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/003—Specific sorbent material, not covered by C10G25/02 or C10G25/03
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/12—Recovery of used adsorbent
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/04—Diesel oil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a heteroatom aromatic hydrocarbon adsorbent and a preparation method thereof, which take sodium silicate, sodium metaaluminate, sodium hydroxide, a silane coupling agent and metal salt as raw materials, and comprises the following preparation steps: 1) Preparing silica-alumina sol by using sodium silicate, sodium metaaluminate and sodium hydroxide as raw materials according to a certain molar ratio; 2) Preparing metal sol by taking a silane coupling agent and metal salt as raw materials according to a certain molar ratio; 3) Mixing the two sols, and preparing a molecular sieve precursor through hydrothermal aging; 4) Mixing a molecular sieve precursor with a pore-forming agent according to a certain proportion, washing, drying and roasting after hydrothermal aging to obtain the adsorbent. The adsorbent has the advantages that the micropore volume ratio is less than or equal to 1%, the acid amount is 1-4mmol/g, the adsorbent has strong adsorption capacity on the polycyclic aromatic hydrocarbon component, the polycyclic aromatic hydrocarbon component in the diesel oil can be adsorbed and separated, and the removal rate can reach 95%.
Description
Background
Bicyclic aromatic hydrocarbons containing multiple aromatic rings are widely found in diesel fuels, such as naphthalene, methylnaphthalene, dimethylnaphthalene, and the like. The compound has low cetane number and poor combustion performance, is one of the main reasons for forming PM2.5 particles in tail gas of diesel vehicles, and has toxicity, mutagenicity and carcinogenicity. Therefore, china makes clear restrictions on the content of the polycyclic aromatic hydrocarbon in the diesel oil for vehicles, and according to clear regulations in national standard GB19147-2016 of the diesel oil for vehicles, the content of the polycyclic aromatic hydrocarbon in the diesel oil is required to be not more than 11 percent. However, in actual production, polycyclic aromatic hydrocarbon in diesel oil produced through catalytic cracking, coking and other processes is far more than 11%. According to statistics, the automotive diesel oil in China mainly comprises atmospheric and vacuum diesel oil, coking diesel oil and catalytic cracking diesel oil, and the proportions of the atmospheric and vacuum diesel oil, the coking diesel oil and the catalytic cracking diesel oil are 59.79%, 18.07% and 17.42% respectively. The normal-pressure and reduced-pressure diesel oil has lower polycyclic aromatic hydrocarbon content and higher cetane number, and is an ideal diesel oil component; the content of polycyclic aromatic hydrocarbon in the catalytic cracking diesel oil and the coking diesel oil is higher, so that the content of polycyclic aromatic hydrocarbon in the final automotive diesel oil is higher. Development of clean diesel oil production technology for promoting diesel oil upgrading is currently required, and in long-term development, the realization of diesel oil upgrading is not only compliant with national energy-saving and emission-reduction development strategy, but also beneficial to realization of 'double carbon' targets in China.
One of the effective methods for reducing the content of polycyclic aromatic hydrocarbons in diesel fuel is to adsorb and remove the polycyclic aromatic hydrocarbons.
Patent CN108940215B discloses a method for removing polycyclic aromatic hydrocarbon from spirulina. The adsorbent is prepared by modifying imidazole ionic liquid into magnetic Fe by mercapto-alkene click chemistry method 3 O 4 And (3) nanoparticles. The prepared adsorbent can rapidly adsorb the polycyclic aromatic hydrocarbon component in the spirulina. Because the adsorbent has magnetism, the adsorbent can be quickly recovered by using a magnet, but can only be used for removing trace polycyclic aromatic hydrocarbon in the water phase, and the concentration range is 0.2-10 mug/L.
Patent CN101891292B discloses an adsorbent for adsorbing and removing bicyclic aromatic hydrocarbon and polycyclic aromatic hydrocarbon in water and a preparation method thereof. The adsorbent is an electrospun nanofiber membrane, in particular to a polymer polylactic acid-caprolactone and a segmented copolymer surfactant which are used as main components, and the fiber of the prepared fiber membrane is directly 400-800 nm, so that the fiber membrane can effectively and rapidly adsorb dicyclic and polycyclic aromatic hydrocarbon in water. The adsorbent is simple to manufacture, convenient to operate and recyclable, but can only be used for removing trace amount of dicyclic aromatics in water, requires the concentration range of 1-10 mg/L, and is not suitable for adsorption separation of high-concentration dicyclic aromatics.
Patent CN102908991B discloses an adsorbent for adsorbing and removing naphthalene from organic gas and a preparation method thereof. The adsorbent adopts active carbon as a carrier, a small amount of aluminum chloride or cetyltrimethylammonium bromide is loaded as an auxiliary agent, and the naphthalene content in the organic gas can be reduced to 45mg/g under the conditions that the temperature is less than 50 ℃ and the pressure is less than 3MPa, and the saturated adsorption capacity reaches 23.6% -31.2%.
The existing adsorbent has smaller saturated adsorption quantity and poorer selectivity, is commonly used for purifying trace pollutants, and is not suitable for adsorbing and separating high-concentration polycyclic aromatic hydrocarbon in diesel oil.
Disclosure of Invention
One of the technical problems to be solved by the invention is to provide an adsorbent containing molecular sieve precursors and framework metal heteroatoms, wherein the metal is embedded into a molecular sieve precursor framework with a specific structure, so that the adsorption selectivity of the adsorbent to aromatic hydrocarbon in diesel oil is improved; the second technical problem to be solved by the invention is to solve the problems of small pore diameter and low diffusion speed of the microporous molecular sieve, and simultaneously, the adsorbent has high aromatic adsorption capacity of the molecular sieve.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
the invention provides a heteroatom aromatic hydrocarbon adsorbent, which is a mesoporous material composed of a molecular sieve precursor and framework metal heteroatoms, and is prepared by the following steps:
(1) The sodium silicate, sodium hydroxide, deionized water and sodium metaaluminate are used as raw materials to synthesize silica-alumina sol, and the molar composition is as follows: (1.5-5.5) Na 2 O：1.0Al 2 O 3 ：(2～30)SiO 2 ：(60～300)H 2 O；
(2) The metal sol is synthesized by adopting a silane coupling agent, metal salt and deionized water as raw materials, and the molar composition is as follows: (10-30) SiO 2 : (0.5-1) M, wherein M is a metal atom, and the metal atom is at least one of Fe, co, ni, cu, zn, ti, zr;
(3) Mixing silicon-aluminum sol and metal sol in parallel flow mode, performing hydrothermal aging, and then introducing liquid nitrogen to rapidly cool to obtain a molecular sieve precursor;
(4) Mixing a molecular sieve precursor with a pore-forming agent aqueous solution, aging under heating, and then filtering, washing, drying and roasting to obtain the heteroatom aromatic hydrocarbon adsorbent.
The adsorbent has selective adsorption effect on the dicyclic aromatic hydrocarbon in the diesel oil, and can be repeatedly used after desorption and regeneration by the desorbing agent.
In the heteroatom aromatic hydrocarbon adsorbent, the micropore volume ratio of the adsorbent is preferably less than or equal to 1%, and the acid amount is preferably 1-4mmol/g.
In the heteroatom aromatic adsorbent of the present invention, preferably, the molecular sieve precursor has a topology of one of FAU, MOR, MFI and BEA, CHA, MWW.
The invention further provides a preparation method of the heteroatom aromatic adsorbent for separating polycyclic aromatic hydrocarbons from diesel oil, which comprises the following steps:
(1) The sodium silicate, sodium hydroxide, deionized water and sodium metaaluminate are used as raw materials to synthesize silica-alumina sol, and the molar composition is as follows: (1.5-5.5) Na 2 O：1.0Al 2 O 3 ：(2～30)SiO 2 ：(60～300)H 2 O；
(2) The metal sol is synthesized by adopting a silane coupling agent, metal salt and deionized water as raw materials, and the molar composition is as follows: (10-30) SiO 2 : (0.5-1) M, wherein M is a metal atom;
(3) Mixing silicon-aluminum sol and metal sol in parallel flow mode, performing hydrothermal aging, and then introducing liquid nitrogen to rapidly cool to obtain a molecular sieve precursor;
(4) Mixing a molecular sieve precursor with a pore-forming agent aqueous solution, aging under heating, and then filtering, washing, drying and roasting to obtain the heteroatom aromatic hydrocarbon adsorbent.
In the preparation method of the heteroatom aromatic adsorbent, the silane coupling agent in the step (2) is at least one of trimethylchlorosilane, vinyl trichlorosilane and hexamethyldisiloxane.
In the preparation method of the heteroatom aromatic adsorbent, the aging temperature in the step (3) is 80-120 ℃, the aging time is 12-48 h, and the liquid nitrogen is cooled to 0-10 ℃.
In the preparation method of the heteroatom aromatic hydrocarbon adsorbent, the pore-forming agent in the step (4) is preferably one or more of hexadecyl trimethyl ammonium bromide, polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer and polyoxyethylene polyoxypropylene ether block copolymer, the concentration of the solution is 0.1-0.2 mol/L, and the solid-liquid ratio of the precursor to the mesoporous guiding agent solution is 1g:1.5 mL-1 g:5.5mL. The crystallization temperature is preferably 60-90 ℃ and the crystallization time is 3-10 h.
The invention further provides application of the heteroatom aromatic adsorbent in adsorbing and separating polycyclic aromatic hydrocarbon in diesel oil, wherein the application conditions are as follows: the temperature is 35-100 ℃, and the adsorption pressure is 0.2-1.0 MPa; the desorbant used in the adsorption process is one or more of cyclohexane, methylcyclohexane, benzene, toluene, xylene, trimethylbenzene, ethanol and methanol.
The invention has the beneficial effects that: according to the heteroatom aromatic adsorbent, the silane coupling agent and the metal are used for carrying out sol, so that the metal enters a molecular sieve precursor skeleton, and the molecular sieve precursor with a specific structure is obtained by rapid cooling through liquid nitrogen, so that the heteroatom aromatic adsorbent has high aromatic adsorption capacity and adsorption selectivity; the molecular sieve precursor has high mesoporous content, so that the adsorption-desorption speed of diesel oil molecules is improved; the application of the adsorbent in removing polycyclic aromatic hydrocarbon in diesel oil has high removal efficiency.
Detailed Description
The technical scheme and technical effects of the invention are further described by the following specific embodiments.
In the heteroatom aromatic adsorbent, the topological structure of a molecular sieve precursor is FAU, LTA, MOR, MFI, * BEA, CHA, MWW. The micropore volume ratio of the heteroatom aromatic hydrocarbon adsorbent is less than or equal to 1%, and the acid amount is 1-4mmol/g.
The application of the heteroatom aromatic adsorbent in adsorbing and separating the polycyclic aromatic hydrocarbon in the diesel oil is characterized in that the simulated diesel oil is contacted and separated with the heteroatom aromatic adsorbent at the temperature of 35-100 ℃, the polycyclic aromatic hydrocarbon is remained in the heteroatom aromatic adsorbent, one or more of cyclohexane, methylcyclohexane, benzene, toluene, xylene, trimethylbenzene, ethanol and methanol are adopted as the resolving agent, the polycyclic aromatic hydrocarbon is washed out, and the polycyclic aromatic hydrocarbon is adsorbed and separated from the diesel oil repeatedly.
The inventive process is illustrated below by way of example, but is not limited to these examples.
The diesel oil used in the examples is simulated diesel oil and contains various compounds of decalin, dodecane, naphthalene, methylnaphthalene and tetrahydronaphthalene. The content of polycyclic aromatic hydrocarbon is measured by gas chromatography GC and chromatograph-mass spectrometer GC-MS.
The evaluation method for the polycyclic aromatic hydrocarbon in the diesel oil by adsorption separation comprises the following steps:
100g of adsorbent is filled into a fixed bed adsorption column for pretreatment, and the activation conditions are as follows: the temperature is 200-500 ℃, the heating rate is 5-10 ℃/min, the temperature is kept at 350 ℃ for 1-4 hours, and the temperature is kept at 500 ℃ for 1-4 hours. After the activation is finished, the temperature of the bed layer is reduced to 35-100 ℃, and the polyaromatic hydrocarbon adsorption separation experiment is carried out, wherein the adsorption separation conditions are as follows: the temperature is 35-100 ℃, the pressure is 0.2-1 MPa, the flow rate of simulated diesel oil is 0.5-5 mL/min, the continuous periodic sampling analysis is carried out, and the liquid product composition is analyzed by a gas chromatograph and a chromatograph-mass spectrometer. Firstly, the collected components are low in polycyclic aromatic hydrocarbon content and are recorded as clean diesel components, the polycyclic aromatic hydrocarbon content and the removal rate of the product are obtained through analysis and calculation, when the polycyclic aromatic hydrocarbon penetrates through the outlet of the adsorption column, the diesel feeding is stopped, the adsorbent is introduced, the polycyclic aromatic hydrocarbon in the column is extracted and recorded as polycyclic aromatic hydrocarbon components, and the polycyclic aromatic hydrocarbon content in the components is analyzed.
Clean diesel yield = clean diesel component mass/simulated total mass of oil produced 100%
Polycyclic aromatic hydrocarbon content of clean diesel component = polycyclic aromatic hydrocarbon mass in clean diesel component/clean diesel component mass x 100%
Polycyclic aromatic hydrocarbon removal rate= (polycyclic aromatic hydrocarbon mass in simulated diesel oil-polycyclic aromatic hydrocarbon mass in clean diesel oil component)/polycyclic aromatic hydrocarbon mass in simulated diesel oil 100% x
Example 1
(1) Forming silica-alumina sol: 133g of sodium hydroxide is dissolved in 800mL of deionized water to form sodium hydroxide solution, 148g of sodium aluminate is slowly added after stirring and cooling, the shift is continued, 400g of water glass is slowly added after complete dissolution and cooling to form silica-alumina sol, and the formed sol has a molar composition of 3.95Na 2 O:1.0Al 2 O 3 :3.2SiO 2 :200H 2 O。
(2) Forming a metal sol: 11g of trimethylchlorosilane and 100mL of deionized water are uniformly mixed, and then 4g of ferric nitrate nonahydrate is added to form a metal sol, wherein the formed sol comprises the following molar components: 10SiO 2 :1Fe。
(3) Hydrothermal aging: mixing the silica-alumina sol and the metal sol in a parallel flow mode, and aging under the heating condition at 90 ℃ for 24 hours. And after aging, introducing liquid nitrogen to rapidly cool to 5 ℃ to obtain the FAU molecular sieve precursor. Mixing the obtained molecular sieve precursor with hexadecyl trimethyl ammonium bromide aqueous solution with the concentration of 0.15mol/L according to the solid-to-liquid ratio of 1g to 3mL, and then aging under the heating condition, wherein the aging temperature is 80 ℃, and the aging time is 5 hours. After the aging, the adsorbent is prepared by suction filtration and washing with a large amount of deionized water, drying at 100 ℃ for 15 hours and roasting at 500 ℃ for 4 hours.
(4) Evaluation of adsorbent performance: adopting a fixed bed adsorber, filling 100g of adsorbent, wetting an adsorption column with methylcyclohexane, introducing simulated diesel oil at a very high pump speed of 2mL/min, simulating Chai Youzu to obtain a table 1, maintaining the temperature of the adsorption column at about 80 ℃, maintaining the pressure of the adsorption column at 0.1-1.0 MPa, detecting the polycyclic aromatic hydrocarbon content at an outlet of the adsorption column, and collecting clean diesel oil components. When the outlet detects obvious polycyclic aromatic hydrocarbon components, stopping introducing simulated diesel oil, changing the feeding into a resolving agent, keeping the pump speed constant at 5mL/min, collecting the polycyclic aromatic hydrocarbon components, and analyzing the polycyclic aromatic hydrocarbon content in the collected sample. The resolving agent used in this example was toluene. The removal rate of polycyclic aromatic hydrocarbon was calculated and the adsorption evaluation was shown in table 2.
Example 2
(1) The silica alumina sol was formed as in example 1.
(2) The metal salt was replaced with titanium sulfate at the time of forming the metal sol, and the mass was 2.4g, and the other conditions were the same as in example 1.
(3) The hydrothermal aging conditions were the same as in example 1.
(4) The adsorbent performance was evaluated in the same manner as in example 1, using methylcyclohexane as the resolving agent, and the adsorbent performance was evaluated as shown in table 2.
Example 3
(1) The silica alumina sol was formed as in example 1.
(2) The metal salt was replaced with zirconium nitrate at the time of forming the metal sol, and the mass was 4.3g, and the other conditions were the same as in example 1.
(3) The hydrothermal aging conditions were the same as in example 1.
(4) The adsorbent performance was evaluated in the same manner as in example 1, using o-xylene as the desorbent, and the adsorbent performance was evaluated as shown in table 2.
Example 4
(1) The molar composition of the silica-alumina sol is changed to 6Na 2 O:1.0Al 2 O3:30SiO 2 :700H 2 O, other conditions were the same as in example 1.
(2) The formation of the metal sol was the same as in example 1.
(3) The hydrothermal aging conditions were the same as in example 1.
(4) The adsorbent performance evaluation was the same as in example 1, and the adsorbent evaluation is shown in table 2.
Example 5
(1) The silica alumina sol was formed as in example 4.
(2) The formation of the metal sol was the same as in example 2.
(3) The hydrothermal aging conditions were the same as in example 1.
(4) The adsorbent performance evaluation was the same as in example 2, and the adsorbent evaluation is shown in table 2.
Example 6
(1) The silica alumina sol was formed as in example 4.
(2) The formation of the metal sol was the same as in example 3.
(3) The hydrothermal aging conditions were the same as in example 1.
(4) The adsorbent performance evaluation was the same as in example 3, and the adsorbent evaluation is shown in table 2.
The simulation Chai Youzu is shown in Table 1, wherein the non-aromatic compound is decalin or dodecane, and the polycyclic aromatic hydrocarbon is naphthalene or methylnaphthalene.
Table 1 simulated diesel composition
| Polycyclic aromatic hydrocarbon content w% | Non-aromatic content w% |
| 20.1 | 79.9 |
TABLE 2 evaluation results of different adsorbents
As can be seen from table 2, the adsorbents were all capable of reducing the polycyclic aromatic hydrocarbon content in the simulated diesel fuel.
Claims (9)
1. The heteroatom aromatic hydrocarbon adsorbent is characterized in that the adsorbent is a mesoporous material composed of a molecular sieve precursor and framework metal heteroatoms, and is prepared by the following steps:
(1) The sodium silicate, sodium hydroxide, deionized water and sodium metaaluminate are used as raw materials to synthesize silica-alumina sol, and the molar composition is as follows: (1.5-5.5) Na 2 O：1.0 Al 2 O 3 ：（2~30）SiO 2 ：（60~300）H 2 O；
(2) The metal sol is synthesized by adopting a silane coupling agent, metal salt and deionized water as raw materials, and the molar composition is as follows: (10-30) SiO 2 : (0.5-1) M, wherein M is a metal atom; the metal atom is at least one of Fe, co, ni, cu, zn, ti, zr;
(3) Mixing silicon-aluminum sol and metal sol in parallel flow mode, performing hydrothermal aging, and then introducing liquid nitrogen to rapidly cool to obtain a molecular sieve precursor;
(4) Mixing a molecular sieve precursor with a pore-forming agent aqueous solution, aging under heating, and then filtering, washing, drying and roasting to obtain the heteroatom aromatic hydrocarbon adsorbent.
2. The heteroatom aromatic adsorbent according to claim 1, wherein the adsorbent has a micropore volume ratio of 1% or less and an acid content of 1-4mmol/g.
3. The heteroatom aromatic adsorbent of claim 1 wherein the molecular sieve precursor has one of the topologies FAU, MOR, MFI, CHA, MWW.
4. The preparation method of the heteroatom aromatic adsorbent is characterized by comprising the following steps of:
(1) The sodium silicate, sodium hydroxide, deionized water and sodium metaaluminate are used as raw materials to synthesize silica-alumina sol, and the molar composition is as follows: (1.5-5.5) Na 2 O：1.0 Al 2 O 3 ：（2~30）SiO 2 ：（60~300）H 2 O；
(2) The metal sol is synthesized by adopting a silane coupling agent, metal salt and deionized water as raw materials, and the molar composition is as follows: (10-30) SiO2: (0.5-1) M, wherein M is a metal atom; characterized in that the metal atom is at least one of Fe, co, ni, cu, zn, ti, zr;
(3) Mixing silicon-aluminum sol and metal sol in parallel flow mode, performing hydrothermal aging, and then introducing liquid nitrogen to rapidly cool to obtain a molecular sieve precursor;
(4) Mixing a molecular sieve precursor with a pore-forming agent aqueous solution, aging under heating, and then filtering, washing, drying and roasting to obtain the heteroatom aromatic hydrocarbon adsorbent.
5. The method according to claim 4, wherein the silane coupling agent in the step (2) is at least one of trimethylchlorosilane, vinyltrichlorosilane and hexamethyldisiloxane.
6. The preparation method of claim 4, wherein the aging temperature in the step (3) is 80-120 ℃, the aging time is 12-48 h, and the liquid nitrogen is cooled to 0-10 ℃.
7. The preparation method of claim 4, wherein the pore-forming agent in the step (4) is one or more of cetyl trimethyl ammonium bromide, polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer and polyoxyethylene polyoxypropylene ether block copolymer, the concentration of the solution is 0.1-0.2 mol/L, and the solid-to-liquid ratio of the precursor to the mesoporous guiding agent solution is 1g:1.5 mL-1 g:5.5mL.
8. The preparation method of claim 4, wherein the aging temperature in step 4) is 60-90 ℃ and the aging time is 3-10 hours.
9. An application of the heteroatom aromatic adsorbent of any one of claims 1-3 in diesel adsorption separation of polycyclic aromatic hydrocarbons, which is characterized in that: the adsorption separation conditions are as follows: the temperature is 35-100 ℃, and the adsorption pressure is 0.2-1.0 MPa; the desorbant used in the adsorption process is one or more of cyclohexane, methylcyclohexane, benzene, toluene, xylene, trimethylbenzene, ethanol and methanol.
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| KR20010111811A (en) * | 2000-06-13 | 2001-12-20 | 김인규 | A method for manufacturing an active component of surfactant, surfactant and a method for using the surfactant |
| CN105327677A (en) * | 2015-12-11 | 2016-02-17 | 中国海洋石油总公司 | Adsorbent for separating bicyclo-arene in diesel oil and preparation method thereof |
| CN106861614A (en) * | 2017-04-06 | 2017-06-20 | 中触媒新材料股份有限公司 | 5A adsorbent of molecular sieve containing n-alkane distillate adsorbing separation and preparation method thereof |
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| KR20010111811A (en) * | 2000-06-13 | 2001-12-20 | 김인규 | A method for manufacturing an active component of surfactant, surfactant and a method for using the surfactant |
| CN105327677A (en) * | 2015-12-11 | 2016-02-17 | 中国海洋石油总公司 | Adsorbent for separating bicyclo-arene in diesel oil and preparation method thereof |
| CN106861614A (en) * | 2017-04-06 | 2017-06-20 | 中触媒新材料股份有限公司 | 5A adsorbent of molecular sieve containing n-alkane distillate adsorbing separation and preparation method thereof |
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