GB2318309A - Desulphurisation - Google Patents
Desulphurisation Download PDFInfo
- Publication number
- GB2318309A GB2318309A GB9721228A GB9721228A GB2318309A GB 2318309 A GB2318309 A GB 2318309A GB 9721228 A GB9721228 A GB 9721228A GB 9721228 A GB9721228 A GB 9721228A GB 2318309 A GB2318309 A GB 2318309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- agent
- compound
- desulphurisation
- manganese
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011572 manganese Substances 0.000 claims abstract description 11
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- 239000003153 chemical reaction reagent Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 150000004820 halides Chemical class 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- -1 sulphur compound Chemical class 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 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 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 150000008044 alkali metal hydroxides Chemical group 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052914 metal silicate Inorganic materials 0.000 claims description 2
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 2
- 150000002506 iron compounds Chemical class 0.000 claims 2
- 150000002697 manganese compounds Chemical class 0.000 claims 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000007767 bonding agent Substances 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 239000002516 radical scavenger Substances 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 244000256297 Euphorbia tirucalli Species 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 1
- NKCVNYJQLIWBHK-UHFFFAOYSA-N carbonodiperoxoic acid Chemical compound OOC(=O)OO NKCVNYJQLIWBHK-UHFFFAOYSA-N 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Gas Separation By Absorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
- Industrial Gases (AREA)
Abstract
Sulphur compounds are removed from a gas and/or liquid stream by an agent comprising manganese and iron.
Description
DESULPHURISATION
The invention relates to desulphurisation and in particular to the purification of streams (liquid or gas or both) by the partial or complete removal of sulphur compounds, e.g.
hydrogen sulphide, low molecular weight mercaptans, or the like therefrom. The invention may also be applied to the purification of air or other gas containing sulphur compounds. The invention relates to a method and a desulphurisation agent.
In one aspect the invention provides a method of reducing the content of a sulphur compound in stream of gas and/or liquid, the method comprising contacting the stream with a desulphurisation agent comprising at least one compound of manganese and at least one compound of iron.
The desulphurisation may be performed, for example, at a temperature from about ambient up to about 450"C, preferably from about 20"C to about 450"C, most preferably from about 40"C to about 1 500C. Preferably the compounds are the oxides, hydroxides, carbonates, e.g. hydroxycarbonate or basic carbonate or the like of both manganese and iron. These active ingredients may be incorporated within a carrier of the invention by simple impregnation or impregnation/deposition, coforming, precipitation from aqueous solution or other techniques well known to those skilled in the art of catalyst preparation. The carrier may be alumina, silica, aluminosilicates or the like. The content of the carrier material will be in the range 1 to 40% by weight.
Preferably the compounds are in the relative molar proportions of 8:1 to 1:8, most preferably about 1:1.
In a preferred feature the desulphurisation agent comprises shaped particles. The particles may be presented in a variety of shapes and sizes preferably as spheres; extrudates, granules, tablets or the like. A binding agent such as cement, alumina, clay, silica, organic resins or the like may be present to enhance the physical properties of the shaped material. The shaped material may require exposure to elevated temperatures to achieve the optimum bond strength. Preferably the agent includes a promoter which is one or more of potassium hydroxide, nickel hydroxide and sodium hydroxide, optionally with a derivative of zinc. The concentration of the promoter is preferably in the range of from about 1% to about 10%. The inclusion of copper or copper compounds has proved to be beneficial because it will scavenge lower concentrations of sulphur compounds and also remove arsine.
In a further preferred feature the shaped desulphurisation agent is porous. The pore volume will be in the range of 0.1 to 0.6 mUg, preferably 0.25-0.45 mUg. It is recognised that the shaped porous materials should exhibit a significant level of macro porosity.
The desulphurisation agent may be used in a fixed bed, a fluid bed or a moving bed.
The choice of the reactor system will depend on generated requirements and the nature of the gas stream, e.g. sour feed. Particle sizes of about 3 to about 6mm are particularly useful in a fixed bed. In a fluid bed, the particle size is preferably in the range about 20 to about 120 microns, most preferably about 30 to about 100 microns.
For the moving bed, the particle size is preferably in the range about 120 to 600 microns, most preferably about 200 to about 500 microns.
The method of the invention may be enhanced by the incorporation of materials with sorption properties. Such materials may be added according to the physical form of the desulphurisation agent. They may be added on to the surface or within the pores of a porous desulphurisation agent or in the bulk phase. Such materials may be catalytically active. The materials (which may be included either singly or in combination) are preferably oxides, carbonates, silicates, phosphates of alkali metals, alkaline earths, rare earths, Zn, Co, Ni Mo, Cr, Cu, Ti Zr, Si Al, precious metals. The materials may be incorporated within the material of the invention by impregnation, deposition, coforming, precipitation techniques well known to those skilled in the art of catalyst preparation. The content of the sorption materials may range from about 0.5 to 40% by weight, preferably in the range 2 to 20% by weight.
In a preferred feature of the invention, other reagents are associated with the desulphurisation agent to react with other substances present in the stream to be treated at from about ambient to about 250 C. One such reagent is an alkaline reagent such as alkali metal hydroxide or silicate, the alkali metal is preferably sodium Such an alkaline reagent will react with halides or strongly acidic gases present in the sour feed such as SOx to form halide or sulphide respectively (which may be recovered later). The reagents may be impregnated into the desulphurisation agent or incorporated into the bulk phase by other means well known to those skilled in the art of catalyst preparation.
The spent desulphurisation agent of the invention may be regenerated by exposure to an oxidising atmosphere e.g. air at elevated temperature. The presence of steam when regenerating may be beneficial.
In another aspect the method of the present invention includes the further step of exposing the spent agent to oxidation at elevated temperature to remove the sulphur compounds and regenerate the agent for re-use.
The sulphur compound to be removed may be hydrogen sulphide gas or a low molecular weight mercaptan such as propyl mercaptam The hydrocarbon stream may be liquid or gas or both, examples being natural gas, town gas, industrial waste gas, coke oven gas, coal gas, liquid or gas from petroleum plant oil refinery. Effluent streams from biomass digesters, general industrial process may also be treated.
The method may be performed at pressures ranging from about atmospheric to about 100 atmospheres without adverse effect.
In another aspect the invention provides a desulphurisation agent comprising at least one compound of manganese and at least one compound of iron in the relative molar proportions of from about 8:1 to 1:8 (Mn:Fe). In a further aspect the invention provides such an agent incorporating a promoter and in yet a further aspect the invention provides such an agent incorporating a sorption material.
In order that the invention may be well understood it will now be described by way of illustration with reference to the following example.
Example I
Pellets of varying composition, as detailed below, were prepared by standard forming techniques, calcined at 4500C and allowed to cool.
Component, Wt.% A B C D
manganese dioxide 5 38
iron oxide 80 70 70 10
sodium hydroxide 10 5 2
binder 20 20 20 20 30 ml. of each sample were placed in a tubular reactor subjected to a flow (3 litres/hour) of nitrogen containing 20% hydrogen sulphide at ambient temperature and pressure and the time noted for 10 ppm hydrogen sulphide to be detected at the outlet of the reactor. The following results were obtained.
Sample time mins
A 62
B 74
C 92
D 330
It will be observed that when both Mn and Fe were present the time increased and that this increase was greatly improved when more manganese was present.
Claims (27)
1. A method of reducing the content of a sulphur compound in stream of gas
and/or liquid, the method comprising contacting the stream with a
desulphurisation agent comprising at least one compound of manganese and at
least one compound of iron.
2. A method according to Claim 1, wherein the contact is made at a temperature
of from about ambient to about 450"C.
3. A method according to Claim 2, wherein the contact temperature is from about 20"C to about 450"C.
4. A method according to Claim 3, wherein the contact temperature is from about 40"C to 450"C.
5. A method according to Claim 4, wherein the contact temperature is from about 40"C to about 150"C.
6. A method according to any preceding Claim, wherein desulphurisation agent
comprises an oxide, hydroxide or carbonate of each of manganese and iron.
7. A method according to Claim 6, wherein the relative molar proportions of
manganese compound to iron compound are from 8:1 to 1:8 (Mn:Fe).
8. A method according to Claim 7, wherein the relative molar proportions are
about 1:1.
9. A method according to any preceding Claim, wherein the manganese
compound and the iron compound are presented together in the form of
bonded particles.
10. A method according to Claim 9, wherein the particles are bonded by a bonding
agent which is a cement, alumina or a clay; silica; organic resin; or the like.
11. A method according to any preceding Claim, wherein the desulphurisation
agent includes a promoter which is a hydroxide of a potassium, nickel and
sodium, optionally with a compound of zinc.
12. A method according to any preceding Claim, wherein the desulphurisation
agent includes copper or a compound thereof as a scavenger.
13. A method according to any preceding Claim, wherein a sorption material is
present in or on the desulphurisation agent.
14. A method according to Claim 13, wherein the content of sorption material is
from 0.5% by weight to about 40% by weight of the agent.
15. A method according to any preceding Claim, wherein the desulphurisation
agent is present in the form of particles from about 3mm to about 6mm in a
fixed bed.
16. A method according to any of Claims 1 to 14, wherein the desulphurisation
agent is present in the form of particles from about 20 to about 120 microns in a fluid bed.
17. A method according to any of Claims 1 to 14, wherein the desulphurisation
agent is present in the form of particles from about 120 microns to about 600
microns, in a moving bed.
18. A method according to any preceding Claim, wherein the desulphurisation
agent is associated with an alkaline reagent to react with a halide or strongly
acidic gas in the stream.
19. A method according to Claim 18, wherein the alkaline reagent is an alkali metal
hydroxide or silicate.
20. A method according to Claim 18 or 19, wherein the alkaline reagent is
contacted with the stream at a temperature of from about ambient to about 250"C.
21. A method according to any preceding Claim, including the step of regenerating
the spent desulphurisation agent.
22. A method according to Claim 20, wherein the spent agent is regenerated by
contact with air or steam at elevated temperature.
23. A desulphurisation agent comprising at least one compound of manganese and
at least one of iron, present in relative molar proportions of about 8:1 to 1:8.
24. An agent according to Claim 23, wherein the molar proportions are about 1:1.
25. An agent according to Claim 23 or 24, including a promoter.
26. An agent according to Claim 23, 24 or 25, including a sorption material.
27. An agent according to any of Claims 23 to 26, including an alkaline reagent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9621906.8A GB9621906D0 (en) | 1996-10-21 | 1996-10-21 | Desulphurisation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9721228D0 GB9721228D0 (en) | 1997-12-03 |
| GB2318309A true GB2318309A (en) | 1998-04-22 |
| GB2318309B GB2318309B (en) | 2001-05-16 |
Family
ID=10801748
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9621906.8A Pending GB9621906D0 (en) | 1996-10-21 | 1996-10-21 | Desulphurisation |
| GB9721228A Expired - Fee Related GB2318309B (en) | 1996-10-21 | 1997-10-06 | Desulphurisation |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9621906.8A Pending GB9621906D0 (en) | 1996-10-21 | 1996-10-21 | Desulphurisation |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0946259A1 (en) |
| JP (1) | JP2001502236A (en) |
| AU (1) | AU4566497A (en) |
| BR (1) | BR9712408A (en) |
| CA (1) | CA2266458A1 (en) |
| GB (2) | GB9621906D0 (en) |
| WO (1) | WO1998017374A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2443290A (en) * | 2006-10-02 | 2008-04-30 | M I Drilling Fluids Uk Ltd | Desulphurisation agent |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7105140B2 (en) * | 2002-03-04 | 2006-09-12 | Conocophillips Company | Desulfurization compositions |
| MX2017002349A (en) * | 2017-02-22 | 2017-07-10 | Inst Nac De Investig Forestales Agricolas Y Pecuarias | Removal of h2s at low-temperature by nanometric ferrites of high surface area obtained by modified chemical co-precopitation. |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1336588A (en) * | 1965-02-10 | 1973-11-07 | Grillo Werke Ag | Desulphurization of industrial gases |
| US4017586A (en) * | 1975-08-06 | 1977-04-12 | Reeves Adam A | Stack gas treatment |
| SU825133A1 (en) * | 1978-12-20 | 1981-04-30 | Институт Газа Ан Украинской Сср | Catalyst for conversion of sulfur-containing gases to elemental sulfur |
| JPS56100622A (en) * | 1980-01-17 | 1981-08-12 | Hitachi Zosen Corp | Dry desulfurizing method in reducing atmosphere |
| EP0100512A2 (en) * | 1982-07-30 | 1984-02-15 | Veg-Gasinstituut N.V. | Reaction mass, method for the manufacture thereof and use thereof |
| GB2125779A (en) * | 1982-08-19 | 1984-03-14 | Nippon Shokubai Kagaku Gogyo C | Desulfurization of H2S-containing gases |
| GB2152489A (en) * | 1983-05-26 | 1985-08-07 | Azerb I Nefti Khimii Im M Aziz | Method for purifying gases from sulphurous compounds |
| JPS60166033A (en) * | 1984-02-06 | 1985-08-29 | Mitsubishi Heavy Ind Ltd | Desulfurizing agent |
| US5417946A (en) * | 1993-12-30 | 1995-05-23 | Shell Oil Company | Process for removing total reduced sulfur compounds from gaseous stream |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5430398B2 (en) * | 1975-01-29 | 1979-09-29 | ||
| NL8105728A (en) * | 1981-10-30 | 1983-05-16 | Tno | PROCESS FOR THE REMOVAL OF HYDROGEN SULFIDE FROM PROCESS GASES USING FIXED ACCEPTORS, PROCESS FOR CYCLICALLY REGENERATING THE ACCEPTORS USED AT HIGH TEMPERATURE, AND METHOD FOR PREPARING THESE PROCESS. |
-
1996
- 1996-10-21 GB GBGB9621906.8A patent/GB9621906D0/en active Pending
-
1997
- 1997-10-06 JP JP10519058A patent/JP2001502236A/en active Pending
- 1997-10-06 EP EP97944019A patent/EP0946259A1/en not_active Withdrawn
- 1997-10-06 CA CA002266458A patent/CA2266458A1/en not_active Abandoned
- 1997-10-06 GB GB9721228A patent/GB2318309B/en not_active Expired - Fee Related
- 1997-10-06 AU AU45664/97A patent/AU4566497A/en not_active Abandoned
- 1997-10-06 WO PCT/GB1997/002735 patent/WO1998017374A1/en not_active Application Discontinuation
- 1997-10-06 BR BR9712408-7A patent/BR9712408A/en not_active Application Discontinuation
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1336588A (en) * | 1965-02-10 | 1973-11-07 | Grillo Werke Ag | Desulphurization of industrial gases |
| US4017586A (en) * | 1975-08-06 | 1977-04-12 | Reeves Adam A | Stack gas treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2443290A (en) * | 2006-10-02 | 2008-04-30 | M I Drilling Fluids Uk Ltd | Desulphurisation agent |
| GB2443290B (en) * | 2006-10-02 | 2010-03-17 | M I Drilling Fluids Uk Ltd | Separation agent |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2318309B (en) | 2001-05-16 |
| CA2266458A1 (en) | 1998-04-30 |
| AU4566497A (en) | 1998-05-15 |
| GB9721228D0 (en) | 1997-12-03 |
| WO1998017374A1 (en) | 1998-04-30 |
| BR9712408A (en) | 1999-10-19 |
| JP2001502236A (en) | 2001-02-20 |
| GB9621906D0 (en) | 1996-12-11 |
| EP0946259A1 (en) | 1999-10-06 |
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| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20021006 |