CN106362676B - A kind of system of extensive alcohol hot preparation carbon dioxide absorber - Google Patents
A kind of system of extensive alcohol hot preparation carbon dioxide absorber Download PDFInfo
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- CN106362676B CN106362676B CN201610897471.6A CN201610897471A CN106362676B CN 106362676 B CN106362676 B CN 106362676B CN 201610897471 A CN201610897471 A CN 201610897471A CN 106362676 B CN106362676 B CN 106362676B
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- 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
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- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
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- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
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- 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
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Abstract
The present invention relates to a kind of systems of extensive alcohol hot preparation carbon dioxide absorber, the system contains the extensive alcohol equipment for heating preparing of lithium metasilicate nano material, the preparation facilities includes mechanical agitator tank, pre-reaction room, reaction chamber, separation chamber, hothouse, calcining compartment, benzyl alcohol conveyance conduit, surfactant conveyance conduit, feedstock transportation channel, wherein feedstock transportation pipeline, benzyl alcohol conveyance conduit is connected with mechanical agitator tank, mechanical agitator tank, surfactant conveyance conduit is connected with pre-reaction room, pre-reaction room is connected with reaction chamber pipeline, reaction chamber is connected with separation chamber by condensation pipe, separation chamber is equipped with supercentrifuge, liquid delivery pump and concentrate separation outlet, concentrate separation outlet is connected with hothouse, hothouse is connected with calcining compartment；The raw material is TEOS and lithium nitrate.
Description
Technical field
The invention belongs to carbon dioxide absorber field, in particular to a kind of extensive alcohol hot preparation carbon dioxide absorber
System, which is lithium metasilicate.
Background technique
Carbon dioxide is greenhouse gases common in air, is a kind of gaseous compound, and carbon reacts its chemistry of generation with oxygen
Formula is CO2, and a carbon dioxide molecule is made up of with a carbon atom covalent bond two oxygen atoms.Carbon dioxide is considered
It is the main source for aggravating greenhouse effects.Currently, its content in an atmosphere is about 400ppm, compared to 1750 before the industrial revolution
Year increases 42%.The fossil fuels such as coal, petroleum are still the main energy sources material in heavy industry enterprise, since combusts fossil fires
Material certainly will release a large amount of high temperature carbon dioxide, and the carbon dioxide content in atmosphere is caused to increase, greenhouse effects aggravation.Room temperature
There are many material of lower absorbing carbon dioxide, and absorptivity is also very big, and some is even up to the 80% of theoretical absorption value, but has one
A premise, carbon dioxide must be room temperature, and for many enterprises, cooling down to high temperature carbon dioxide certainly will increase into
This, reduces enterprise profit, reduces the capital circulation period, therefore, preparation can direct absorbing carbon dioxide at high temperature material, at
For energy-saving and emission-reduction, one of important channel of greenhouse effects is reduced.Research now with a large amount of lithium-based compound is used to adsorb two
Carbonoxide, as southeast Polytechnics discloses a kind of Novel carbon dioxide adsorbent and preparation side in CN201310660976.7
Method using metatitanic acid lithium, chemical formula Li2TiO3, or mixes sodium metatitanic acid lithium, chemical formula Li2 (1-x) Na2xTiO3 for 500
The adsorbent that carbon dioxide is adsorbed under DEG C -700 DEG C high temperature.Metatitanic acid lithium is with butyl titanate, lithium acetate, anhydrous second
Alcohol, glacial acetic acid and water are synthesized as raw material using hydrolysis of alkoxide sol-gal process；Preparation mixes sodium and produces Li2 (1-x)
Sodium acetate is added when Na2xTiO3.When temperature is higher than 500 DEG C, adsorbent starts to react with carbon dioxide, and absorption starts
It carries out, when temperature is higher than 700 DEG C, reaction starts inversely to carry out, and releases carbon dioxide gas, adsorbent reactivation.To high temperature
Carbon dioxide in flue gas is adsorbed, and simple process, product is easily separated, and material easily regenerates, and can be recycled.System of the present invention
Preparation Method system chemical uniformity is stronger；Reaction process is easy to control；It is low to calcine forming temperature, it is low for equipment requirements；It is easily modified；
Component is uniform, purity is high.
But from the perspective of cost and adsorption efficiency, lithium metasilicate is a kind of ideal absorption carbon dioxide
Lithium-based compound, lithium metasilicate can between 400 DEG C~750 DEG C direct absorbing carbon dioxide, therefore be expected to become high temperature dioxy
Change the important absorbing material of carbon gas.As Beijing Jiaotong University discloses a kind of high temperature titanium dioxide in CN201310538269.0
Carbon adsorbent and preparation method thereof.Using SiO2 and Li2CO3 as raw material, while using sodium carbonate and potassium carbonate as dopant, by mixed
The lithium metasilicate ceramic material of Na, K element codope can be obtained in material, high temperature sintering.Prepared silicic acid lithium material absorbs dioxy
The performance for changing carbon is stablized, and repetitive rate use is higher, easy to industrialized production.University of Science & Technology, Beijing is in CN201410208844.5
In disclose it is a kind of for absorbing the preparation method of the lithium metasilicate porous material of high temperature CO 2, using lithium nitrate as lithium source and oxygen
Agent, using citric acid as complexing agent and fuel, uses the mixed liquor of second alcohol and water as molten using ethyl orthosilicate as silicon source
Agent, using sol-gel combustion synthesis method.First citric acid and lithium nitrate are dissolved in solvent, ethyl orthosilicate is then added, is passed through
Hydrolysis is crossed, sol gel, is aged, is dried to obtain presoma, is lighted in air after presoma compression moulding, after burning i.e.
Obtain the lithium metasilicate porous material that can be used for absorbing high temperature CO 2.The lithium metasilicate porous material even pore distribution of this method preparation,
Carbon dioxide absorption activity is high.Compared with the prior art, directly to prepare lithium metasilicate using sol-gel combustion synthesis method porous
Material simplifies process flow, and the equipment for being not necessarily to complex and expensive, it is easy to accomplish industrialized production.China Mining University exists
Hydration-calcining method of modifying of 2 adsorbent material Li4SiO4 of high temperature CO a kind of is disclosed in China Mining University.Solid phase method is closed
It is modified at lithium silicate powder using hydration-method for calcinating, hydration temperature is 80 ~ 100 DEG C, and calcination temperature is 700 DEG C ~ 900
DEG C, calcination time is 2h ~ 6h, and for the adsorbent average grain diameter less than 50 microns, absorptive capacity is greater than 25%, after 15 circulations
Absorptive capacity is without obvious decaying.The silicic acid lithium material pore structure of the modified preparation of the present invention is more abundant, and with higher two
The carbonoxide rate of adsorption and absorptive capacity, circulation absorption are functional.For the dioxy of this lithium metasilicate for having application prospect
Change carbon adsorbent, how to design in a kind of carbon dioxide absorber of high quality is everybody emphasis of interest.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems, develop a kind of extensive alcohol hot preparation carbon dioxide absorber is
System, the prepared carbon dioxide absorber come out of the system, particle size is smaller, and specific grain surface product is higher, and material activity is high,
Absorption carbon dioxide ability is strong, and industrialized production may be implemented in large scale preparation.
A kind of system of extensive alcohol hot preparation carbon dioxide absorber, it is extensive which contains lithium metasilicate nano material
Alcohol equipment for heating preparing, the preparation facilities include mechanical agitator tank, pre-reaction room, reaction chamber, separation chamber, hothouse, calcining compartment, benzene
Methanol conveyance conduit, surfactant conveyance conduit, feedstock transportation channel, wherein feedstock transportation pipeline, benzyl alcohol conveyance conduit
It is connected with mechanical agitator tank, mechanical agitator tank, surfactant conveyance conduit are connected with pre-reaction room, pre-reaction room and reaction chamber
Pipeline is connected, and reaction chamber is connected with separation chamber by condensation pipe, and separation chamber is equipped with supercentrifuge, liquid delivery pump and dense
Contracting liquid separation outlet, concentrate separation outlet are connected with hothouse, and hothouse is connected with calcining compartment；The raw material is TEOS and nitre
Sour lithium.
Preferably, mechanical agitator tank is connected with pre-reaction room pipeline.
Preferably, check valve is arranged on pre-reaction room and reaction chamber pipeline.
Preferably, air delivery valve and air outlet valve is respectively set in pre-reaction room and reaction chamber.
Preferably, liquid delivery pump is connected with mechanical agitator tank.
Preferably, the calcine technology of the calcining compartment includes two techniques of dumping and calcining.
The preparation process of extensive alcohol hot preparation carbon dioxide absorber, silicon source TEOS, lithium source corresponding to the system
For lithium carbonate；Alcoholic solvent is benzyl alcohol；It in alcohol thermal process reactor, is carried out in two steps, the first step is pre-reaction, at such a temperature
(160-180 degrees Celsius) is realized preliminary nucleation, forms presoma；Second step is high temperature alcohol thermal response (220-250 degrees Celsius),
At higher temperature, the further crystallization of presoma, the size of particle size is in 10nm or so；Prepared nano particle is being dried
High-temperature calcination is carried out after dry, can be obtained the carbon dioxide absorber of ceramic；High-temperature calcination is divided into two works of dumping and calcining
Skill makes prepared adsorbent have porous structure in inside as far as possible.
Beneficial effects of the present invention:
(1) present invention on the basis of existing technology, improves the preparation process of carbon dioxide absorber lithium metasilicate, compared to
Traditional solid phase method, sol-gal process and hydration and calcinations improved method is compared, and alcohol hot preparation method and process of the invention is simple, former
Expect from a wealth of sources, and the size of preparation-obtained lithium metasilicate is thinner, is evenly distributed, and refines by high temperature, obtained crystalline substance
Body crystallization degree is high.
(2) preparation system of the invention has preferable pertinency each other, and preparation facilities includes mechanical agitator tank, in advance
Reaction chamber, reaction chamber, separation chamber, hothouse, calcining compartment, benzyl alcohol conveyance conduit, surfactant conveyance conduit, feedstock transportation
Channel, wherein feedstock transportation pipeline, benzyl alcohol conveyance conduit are connected with mechanical agitator tank, and mechanical agitator tank, surfactant are defeated
Pipeline is sent to be connected with pre-reaction room, pre-reaction room is connected with reaction chamber pipeline, and reaction chamber is connected with separation chamber by condensation pipe,
Separation chamber is equipped with supercentrifuge, liquid delivery pump and concentrate separation outlet, and concentrate separation outlet is connected with hothouse,
Hothouse is connected with calcining compartment, can be convenient carry out industrialized production.Meanwhile benzyl alcohol of the invention is realized during being related to
It is recycled.
(3) present invention is carried out in two steps, the first step is pre-reaction, and (160-180 takes the photograph at such a temperature in alcohol thermal process
Family name's degree) realize preliminary nucleation, form presoma；Second step is high temperature alcohol thermal response (220-250 degrees Celsius), in higher temperature
Under, the further crystallization of presoma, the size of particle size is in 10nm or so；Prepared nano particle is subjected to height after the drying
Temperature calcining, can be obtained the carbon dioxide absorber of ceramic；High-temperature calcination is divided into two techniques of dumping and calcining, makes as far as possible
Obtaining prepared adsorbent has porous structure in inside, is suitble to the absorption of the carbon dioxide gas of high temperature.
Specific embodiment
The present invention is described in further detail below with reference to specific embodiment, and referring to data.It should be understood that these embodiments
It is of the invention solely for the purpose of illustration, rather than limit the scope of the invention in any way.
Embodiment:
A kind of system of extensive alcohol hot preparation carbon dioxide absorber, it is characterised in that: the system contains lithium metasilicate and receives
The rice extensive alcohol equipment for heating preparing of material, which includes mechanical agitator tank, pre-reaction room, reaction chamber, separation chamber, drying
Room, calcining compartment, benzyl alcohol conveyance conduit, surfactant conveyance conduit, feedstock transportation channel, wherein feedstock transportation pipeline, benzene
Methanol conveyance conduit is connected with mechanical agitator tank, and mechanical agitator tank, surfactant conveyance conduit are connected with pre-reaction room, pre- anti-
Room is answered to be connected with reaction chamber pipeline, reaction chamber is connected with separation chamber by condensation pipe, and separation chamber is equipped with supercentrifuge, liquid
Delivery pump and concentrate separation outlet, concentrate separation outlet are connected with hothouse, and hothouse is connected with calcining compartment；The original
Material is TEOS and lithium nitrate.Mechanical agitator tank is connected with pre-reaction room pipeline.Setting is unidirectional on pre-reaction room and reaction chamber pipeline
Valve.Air delivery valve and air outlet valve is respectively set in pre-reaction room and reaction chamber.Liquid delivery pump is connected with mechanical agitator tank.It is described to forge
The calcine technology for burning room includes two techniques of dumping and calcining.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of system of extensive alcohol hot preparation carbon dioxide absorber, it is characterised in that: the system contains lithium metasilicate nanometer
The extensive alcohol equipment for heating preparing of material, the preparation facilities include mechanical agitator tank, pre-reaction room, reaction chamber, separation chamber, drying
Room, calcining compartment, benzyl alcohol conveyance conduit, surfactant conveyance conduit, feedstock transportation channel, wherein feedstock transportation pipeline, benzene
Methanol conveyance conduit is connected with mechanical agitator tank, and mechanical agitator tank, surfactant conveyance conduit are connected with pre-reaction room, pre- anti-
Room is answered to be connected with reaction chamber pipeline, reaction chamber is connected with separation chamber by condensation pipe, and separation chamber is equipped with supercentrifuge, liquid
Delivery pump and concentrate separation outlet, concentrate separation outlet are connected with hothouse, and hothouse is connected with calcining compartment；The original
Material is TEOS and lithium nitrate.
2. a kind of system of extensive alcohol hot preparation carbon dioxide absorber as described in claim 1, it is characterised in that: mechanical
Agitator tank is connected with pre-reaction room pipeline.
3. a kind of system of extensive alcohol hot preparation carbon dioxide absorber as described in claim 1, it is characterised in that: pre- anti-
It answers and check valve is set on room and reaction chamber pipeline.
4. a kind of system of extensive alcohol hot preparation carbon dioxide absorber as claimed in claim 1 or 2, it is characterised in that:
Air delivery valve and air outlet valve is respectively set in pre-reaction room and reaction chamber.
5. a kind of system of extensive alcohol hot preparation carbon dioxide absorber as claimed in claim 1 or 2, it is characterised in that:
Liquid delivery pump is connected with mechanical agitator tank.
6. a kind of system of extensive alcohol hot preparation carbon dioxide absorber as described in claim 1, it is characterised in that: described
The calcine technology of calcining compartment includes two techniques of dumping and calcining.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610897471.6A CN106362676B (en) | 2016-10-15 | 2016-10-15 | A kind of system of extensive alcohol hot preparation carbon dioxide absorber |
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| CN201610897471.6A CN106362676B (en) | 2016-10-15 | 2016-10-15 | A kind of system of extensive alcohol hot preparation carbon dioxide absorber |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003411A (en) * | 2014-05-16 | 2014-08-27 | 北京科技大学 | Preparation method of lithium silicate porous material used for absorption of high temperature CO2 |
| CN104998608A (en) * | 2015-07-08 | 2015-10-28 | 华中科技大学 | Preparation method for lithium silicate CO2 adsorbent |
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- 2016-10-15 CN CN201610897471.6A patent/CN106362676B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003411A (en) * | 2014-05-16 | 2014-08-27 | 北京科技大学 | Preparation method of lithium silicate porous material used for absorption of high temperature CO2 |
| CN104998608A (en) * | 2015-07-08 | 2015-10-28 | 华中科技大学 | Preparation method for lithium silicate CO2 adsorbent |
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Effective date of registration: 20210112 Address after: 221400 e-commerce Industrial Park, Xin'an street, Xinbei West Road, Xinyi City, Xuzhou City, Jiangsu Province Patentee after: Xinyi Xinnan Environmental Protection Industry Technology Research Institute Co., Ltd Address before: 221400 Pingdun, North Suburb of Xinyi City, Xuzhou City, Jiangsu Province (No. 79, Xinbei Road) Patentee before: Xinyi Xinwei Gas Co.,Ltd. |