CN101885490A - Method for preparing lithium silicate material for absorbing CO2 at high temperature from micro silicon powder - Google Patents
Method for preparing lithium silicate material for absorbing CO2 at high temperature from micro silicon powder Download PDFInfo
- Publication number
- CN101885490A CN101885490A CN2010102232791A CN201010223279A CN101885490A CN 101885490 A CN101885490 A CN 101885490A CN 2010102232791 A CN2010102232791 A CN 2010102232791A CN 201010223279 A CN201010223279 A CN 201010223279A CN 101885490 A CN101885490 A CN 101885490A
- Authority
- CN
- China
- Prior art keywords
- lithium silicate
- high temperature
- silica fume
- absorbing
- silicon powder
- 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.)
- Pending
Links
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052912 lithium silicate Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 title abstract description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract description 7
- 239000011863 silicon-based powder Substances 0.000 title abstract 4
- 229910021487 silica fume Inorganic materials 0.000 claims description 23
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 12
- 239000011358 absorbing material Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 4
- 238000003836 solid-state method Methods 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 238000002360 preparation method Methods 0.000 abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract 2
- 238000010532 solid phase synthesis reaction Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000000843 powder Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 5
- 238000000498 ball milling Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229960001866 silicon dioxide Drugs 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 2
- 231100000987 absorbed dose Toxicity 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000010795 gaseous waste Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a method for preparing a lithium silicate material for absorbing CO2 at a high temperature from micro silicon powder. The method prepares the lithium silicate material for absorbing the CO2 at the high temperature from the smoke reclaiming mineral micro silicon powder by adopting a high-temperature solid-phase method. The preparation cost is low, the absorption amount of the CO2 at the temperature of between 500 and 700 DEG C reaches 25 to 40 percent, and the method provides a new path for changing waste into valuable for the application of the smoke reclaiming mineral micro silicon powder.
Description
Technical field
The invention belongs to the ceramic material preparing technical field, being specifically related to a kind of is the feedstock production high temperature CO with the SILICA FUME
2The method of absorbing material lithium silicate.
Background technology
In recent years, the aggravation of global greenhouse effect, its immediate cause is: still based on fossil oils such as oil, coal, Sweet natural gases, the quantity discharged of industrial gaseous waste increases year by year, wherein CO in a lot of industrial production such as power station, petroleum chemical enterprise
2Quantity discharged account for most of ratio.So global problem " reduces CO
2Exhaust gas emission " put and must think better of, and should adopt the critical role of solving as early as possible with effective measure.In order to prevent that the earth from aggravating to warm, wish to reduce the output of greenhouse gases, and, require reduction to account for greenhouse gases major part CO
2For discharging CO in the high-temperature flue gas
2Absorption and recovery, the absorbed dose of physical absorbent is subjected to the influence of porosity and specific surface area, especially the characteristic limitations that reduces gradually along with its absorbed dose of rising of temperature use at high temperature.Therefore, syntheticly at high temperature can absorb CO efficiently, rapidly
2Material become one of important channel of alleviating Greenhouse effect.
Towards CO
2The technological development that gas is cut down is divided into the raising of effciency of energy transfer, exploration and the exploitation and the CO of new forms of energy
2Recovery with isolate 3 classes.Wherein, with CO
2Recovery with isolate relevantly, particularly can effectively absorb CO
2Absorbing material research and development very in vogue in recent years.
Present CO
2The research of high temperature absorbing material mainly concentrates on lithium-based ceramic, and the lithium silicate material can absorb CO by direct reversible between 500～700 ℃
2, therefore be expected to become high temperature CO
2The important absorbing material of gas also is considered to CO simultaneously
2The preferred materials that absorbs.
Present most lithium silicate material preparation is adopted through preferred SiO
2Raw material and Li
2CO
3Mixing obtains by high temperature solid-state method.People such as domestic Wang Yin outstanding person are raw material with silicon-dioxide and Quilonum Retard, adopt high-temperature solid phase reaction method in 500～700 ℃ of synthetic lithium silicate materials that obtain.Experimental result shows, calcines 6h down at 750 ℃ and can synthesize CO
2The lithium silicate material that absorptive character are good, but owing to the technical grade SiO of its raw material silicon-dioxide that uses as median size 30 μ m
2, price comparison costliness, so preparation cost height; The Shan Yun Dengren that continues is a raw material with cheap natural diatomaceous earth and Quilonum Retard, adopts high temperature solid-state method to synthesize lithium silicate in 600～900 ℃, and its synthesis temperature is higher, and the lithium silicate of preparing is not high to the degree of absorption of carbonic acid gas.
Summary of the invention
The object of the present invention is to provide a kind of preparation cost low and to CO
2The high temperature of good absorbing effect absorb CO
2The method of lithium silicate material.
Technical scheme of the present invention is: with SILICA FUME and Quilonum Retard is raw material, adopts high temperature solid-state method, and calcining temperature is 600～800 ℃, and soaking time is 2～6h, prepares high temperature CO
2The absorbing material Quilonum Retard.
In the such scheme, described soaking time is good with 4～6h, can be so that prepared high temperature absorbs CO
2The lithium silicate material possesses best CO
2Assimilation effect.
In the such scheme, the optimum mole ratio of raw material Quilonum Retard and SILICA FUME is 1.94.
SILICA FUME of the present invention also is the silicon ash or is claimed cohesion silicon ash, and also the someone is silica flour.Be the SiO that when smelting ferrosilicon and industrial silicon, produces
2A kind of ultra-fine siliceous dusty material that forms with Si gas and the rapid oxidation of airborne oxygen and condensation precipitation is so this raw material is easy to get and is cheap.The SILICA FUME median size is 0.15～0.30 μ m, and specific surface area is 15～20m
2/ g.Its main component is a silicon-dioxide, and content is 80%～92%, and major impurity is Fe
2O
3, Al
2O
3, metal oxide and agraphitic carbon such as MgO, CaO, NaO.Because silicon-dioxide belongs to unformed material in the SILICA FUME, active high, particle is tiny, and specific surface area is big, has good physicochemical property, is that raw material is compared with adopting natural diatomaceous earth, can reduce preparation high temperature and absorb CO
2The synthesis temperature of lithium silicate material.Its building-up reactions is as follows:
2Li
2CO
3+SiO
2＝Li
4SiO
4+2CO
2
The lithium silicate material is to CO
2Absorb:
The lithium silicate material for preparing in order to the top method absorbs CO
2, this lithium silicate material is placed thermogravimetric analyzer, at CO
2: N
2In the atmosphere of=1～5 (mol ratios), be under 500 ℃～700 ℃, under different soak times, carry out CO at adsorption temp
2Absorption reaction obtains CO
2Absorbed dose be 25%～40%.Lithium silicate absorbed CO
2Reaction as follows:
Li
4SiO
4+CO
2＝Li
2SiO
3+Li
2CO
3
The present invention has produced following beneficial effect:
(1) the present invention is a raw material with flue gas recovery mineral SILICA FUME, thereby makes lithium silicate material preparation cost reduce relatively, also searches out a new way that turns waste into wealth for the application of SILICA FUME simultaneously.
(2) to reclaim the mineral SILICA FUME with flue gas be raw material in the present invention, plays the reduction temperature in lithium silicate material synthetic, improve the effect of synthetic ratio, and synthetic lithium silicate material is to CO
2Specific absorption increase to some extent.
(3) the present invention can at high temperature directly absorb CO
2, save energy; Reclaim carbon resource simultaneously, thereby play the effect of environment protection.
Embodiment
Embodiment 1
With the mole proportioning is that 1.94 Quilonum Retard powder and SILICA FUME mix, and adds the quick ball milling 15min of water, carries out drying then.Quilonum Retard and SILICA FUME being put into retort furnace under 600 ℃ calcines and obtained the lithium silicate powder in 6 hours.The lithium silicate powder that makes is put into thermogravimetric analyzer, at CO
2: N
2Be raised to 600 ℃ and constant temperature 45min with the temperature rise rate of 10K/min in=2 (mol ratio) atmosphere and carry out CO
2Absorption reaction, obtain CO
2Specific absorption be 30.47%.
Embodiment 2
With the mole proportioning is that 1.94 Quilonum Retard powder and SILICA FUME mix, and adds the quick ball milling 15min of water, carries out drying then.Quilonum Retard and SILICA FUME being put into retort furnace under 650 ℃ calcines and obtained the lithium silicate powder in 6 hours.The lithium silicate powder that makes is put into thermogravimetric analyzer, at CO
2: N
2Be raised to 600 ℃ and constant temperature 45min with the temperature rise rate of 10K/min in=2 (mol ratio) atmosphere and carry out CO
2Absorption reaction, obtain CO
2Specific absorption be 35.75%.
Embodiment 3
With the mole proportioning is that 1.94 Quilonum Retard powder and SILICA FUME mix, and adds the quick ball milling 15min of water, carries out drying then.Quilonum Retard and SILICA FUME being put into retort furnace under 750 ℃ calcines and obtained the lithium silicate powder in 4 hours.The lithium silicate powder that makes is put into thermogravimetric analyzer, at CO
2: N
2Be raised to 600 ℃ and constant temperature 45min with the temperature rise rate of 10K/min in=2 (mol ratio) atmosphere and carry out CO
2Absorption reaction, obtain CO
2Specific absorption be 39.47%.
Embodiment 4
With the mole proportioning is that 1.94 Quilonum Retard powder and SILICA FUME mix, and adds the quick ball milling 15min of water, carries out drying then.Quilonum Retard and SILICA FUME being put into retort furnace under 800 ℃ calcines and obtained the lithium silicate powder in 4 hours.The lithium silicate powder that makes is put into thermogravimetric analyzer, at CO
2: N
2Be raised to 600 ℃ and constant temperature 45min with the temperature rise rate of 10K/min in=2 (mol ratio) atmosphere and carry out CO
2Absorption reaction, obtain CO
2Specific absorption be 37.73%.
Claims (3)
1. one kind is the feedstock production high temperature CO with the SILICA FUME
2The method of absorbing material lithium silicate is characterized in that: with SILICA FUME and Quilonum Retard is raw material, adopts high temperature solid-state method, and calcining temperature is 600～800 ℃, and soaking time is 2～6h.
2. according to claim 1 is the feedstock production high temperature CO with the SILICA FUME
2The method of absorbing material lithium silicate is characterized in that: described soaking time is 4～6h.
According to claim 1 or 2 described be the feedstock production high temperature CO with the SILICA FUME
2The method of absorbing material lithium silicate is characterized in that: the mol ratio of raw material Quilonum Retard and SILICA FUME is 1.94.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102232791A CN101885490A (en) | 2010-07-12 | 2010-07-12 | Method for preparing lithium silicate material for absorbing CO2 at high temperature from micro silicon powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102232791A CN101885490A (en) | 2010-07-12 | 2010-07-12 | Method for preparing lithium silicate material for absorbing CO2 at high temperature from micro silicon powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101885490A true CN101885490A (en) | 2010-11-17 |
Family
ID=43071618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102232791A Pending CN101885490A (en) | 2010-07-12 | 2010-07-12 | Method for preparing lithium silicate material for absorbing CO2 at high temperature from micro silicon powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101885490A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674383A (en) * | 2012-06-05 | 2012-09-19 | 郑州大学 | Method for preparing lithium orthosilicate by taking coal gangue as a raw material |
| CN103011183A (en) * | 2012-12-18 | 2013-04-03 | 陕西科技大学 | Preparation method of a Li4SiO4-Li2CuO2 hybrid high-temperature carbon-absorbing material |
| CN103570343A (en) * | 2013-11-08 | 2014-02-12 | 蚌埠玻璃工业设计研究院 | Preparation method of Na-doped lithium silicate ceramic material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275426A (en) * | 1999-03-23 | 2000-12-06 | 株式会社东芝 | carbon dioxide gas absorbent |
| CN101653718A (en) * | 2009-09-03 | 2010-02-24 | 昆明理工大学 | Method for preparing lithium silicate material for absorbing CO2 at high temperature |
-
2010
- 2010-07-12 CN CN2010102232791A patent/CN101885490A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275426A (en) * | 1999-03-23 | 2000-12-06 | 株式会社东芝 | carbon dioxide gas absorbent |
| CN101653718A (en) * | 2009-09-03 | 2010-02-24 | 昆明理工大学 | Method for preparing lithium silicate material for absorbing CO2 at high temperature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674383A (en) * | 2012-06-05 | 2012-09-19 | 郑州大学 | Method for preparing lithium orthosilicate by taking coal gangue as a raw material |
| CN103011183A (en) * | 2012-12-18 | 2013-04-03 | 陕西科技大学 | Preparation method of a Li4SiO4-Li2CuO2 hybrid high-temperature carbon-absorbing material |
| CN103570343A (en) * | 2013-11-08 | 2014-02-12 | 蚌埠玻璃工业设计研究院 | Preparation method of Na-doped lithium silicate ceramic material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112110675B (en) | Environment-friendly anti-cracking waterproof agent for concrete and preparation method thereof | |
| CN101851071A (en) | Method for fixing carbon dioxide and digesting free calcium oxide in slag micro powder | |
| CN102114385B (en) | Flue gas desulfurization additive | |
| CN103418336B (en) | A kind of preparation method of high temperature calcium-based CO2 absorption material | |
| CN101696015B (en) | A kind of preparation method of high temperature CO2 absorbing material lithium silicate | |
| CN101020577A (en) | CO2 mineralizing process | |
| CN109876591A (en) | A composite solid waste-based biomass activated carbon for flue gas desulfurization and denitrification and preparation method thereof | |
| CN101653718B (en) | A kind of preparation method of lithium silicate material that absorbs CO2 at high temperature | |
| CN108499515B (en) | A kind of preparation method of doped CO2 calcium-based adsorbent | |
| Cai et al. | Phase transformations of vanadium recovery from refractory stone coal by novel NaOH molten roasting and water leaching technology | |
| WO2021117623A1 (en) | Sodium ferrite particle powder and production method thereof | |
| CN110683832B (en) | A kind of foamed ceramic prepared by utilizing waste incineration fly ash and preparation method thereof | |
| CN100334026C (en) | Process for prepering active magnesium oxide | |
| CN103657582A (en) | An improved calcium oxide-based CO2 adsorbent and its preparation method | |
| CN116553842A (en) | High-magnesium low-carbon cement clinker and preparation method thereof | |
| CN101177631A (en) | Ferric cerium oxide high temperature gas desulfurizer and its preparation | |
| CN101885490A (en) | Method for preparing lithium silicate material for absorbing CO2 at high temperature from micro silicon powder | |
| CN101260323A (en) | Cerium oxide high temperature gas desulfurizer and its preparation | |
| CN103537177A (en) | Modified calcium-based desulfurizing agent for dry desulfurization of sintering gas and preparation method of modified calcium-based desulfurizing agent | |
| CN104711042B (en) | Dechlorinating agent for blast furnace top gas | |
| CN102908981A (en) | Preparation method of lithium-based carbon dioxide adsorbent | |
| CN103071373B (en) | Method for preparing highly active CO2 absorbent by utilizing carbide slag | |
| CN102600818A (en) | Preparation method and application of calcium oxide based absorbing material using diatomite as carrier | |
| CN109126411B (en) | A kind of excess sludge-loaded iron tailings modified adsorbent and preparation method thereof | |
| CN102731076A (en) | Lithium silicate ceramic material absorbing high-temperature carbon dioxide and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101117 |