CN110523366A - A kind of forming method suitable for carbon capture sodium base adsorbent - Google Patents

A kind of forming method suitable for carbon capture sodium base adsorbent Download PDF

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Publication number
CN110523366A
CN110523366A CN201910601612.9A CN201910601612A CN110523366A CN 110523366 A CN110523366 A CN 110523366A CN 201910601612 A CN201910601612 A CN 201910601612A CN 110523366 A CN110523366 A CN 110523366A
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CN
China
Prior art keywords
adsorbent
sodium base
carbon capture
forming method
base adsorbent
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Pending
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CN201910601612.9A
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Chinese (zh)
Inventor
吴烨
刘威
张权
冯鸣谦
王伟
刘冬
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Nanjing Tech University
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Nanjing Tech University
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Priority to CN201910601612.9A priority Critical patent/CN110523366A/en
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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
    • 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
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • 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
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • 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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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention discloses a kind of forming methods for being adapted to carbon capture sodium base adsorbent, this method be by sodium base adsorbent through dipping, drying, calcining, it is broken after obtain absorbent particles, again granular absorbent particles are placed in fluidize in fluidized bed and be formed, adsorbent partial size required for screening obtains；After the fine powder of collection fluidized bed elutriation is crushed to powder again, after being mixed with water, is dry, calcined, being broken, it is again placed in fluidized bed, recycling.Forming method of the invention compares existing sodium base adsorbent moulding process, and this method is simple and convenient, high production efficiency.

Description

A kind of forming method suitable for carbon capture sodium base adsorbent
Technical field
The present invention relates to a kind of forming methods suitable for carbon capture sodium base adsorbent, belong to carbon dioxide discharge-reduction field.
Background technique
With industrialized continuous development, the excessive development and utilization of fossil energy cause the environmental problem being on the rise. The environmental problems such as the raising of the temperature as caused by greenhouse effects, more attract people's attention.Wherein, caused by combustion of fossil fuel Carbon Dioxide in Air (CO2) raising of content an important factor for being greenhouse effects.What coal-burning power plant was concentrated as maximum, most consolidates Order point emission source, the carbon capture technology that development is suitable for coal-burning power plant have highly important meaning for alleviating greenhouse effects Justice.
In the various CO for being directed to power plant2In emission-reduction technology, alkali metal base adsorbent decarburization technique, due to its cyclic utilization rate It is high, regeneration energy consumption is low, corrodes the advantages such as small, without secondary pollution to equipment be considered as great development prospect carbon capture technology it One.
Triangle research institute, the U.S. (RTI), Louisiana State University (LSU) and Qie Qiduwei company (C&D) are in the U.S. Under the subsidy of Ministry of Energy (DOE), deposited in U.S. Patent No. 6387337B1 (2002.5.14) with alkali or alkaline earth metal On carrier, pass through decarburization and Regenerating Trap CO at 93-1093 DEG C2.With heavy in 6280603B1 (2001.08.28) Shallow lake method prepares alkali metal carbonate co-catalyst and the adsorbent containing magnesia, traps CO at 300-500 DEG C2.Korea Electric Power is public Society has applied for patent in China: CN20041010564.0, the method with spray drying is proposed, to prepare absorbent particles.It is domestic Southeast China University has carried out correlative study also for this technology in recent years, proposes one in CN200820037600.5 patent CO in kind highly active potassium-base absorbing agent dry removal flue gas2Device, can be organically combined with coal generating system, utilize fire coal Energy needed for flue gas offer system, the effective cascade utilization for realizing the energy.It is prompted in CN201810294379.X patent Powdered sodium base adsorbent is prepared using equi-volume impregnating, then with other sodium base/amidos time active component solution dipping modification Adsorbent obtains efficient sodium base solid absorbent.
The above patent is the absorption property or sorbent reactions system for raising adsorbent, and for sodium base adsorbent Forming technique is but rarely reported, and society, Korea Electric Power proposes the method with spray drying, but due to such method, active component load It is smaller to measure less and adsorbent partial size, on fluidized bed have certain topical type.For this purpose, removing CO for power plant2, need A kind of simple, convenient, efficient adsorbent-shaping technology is wanted to ensure that its industrializes stable operation.
Summary of the invention
The present invention is intended to provide a kind of forming method suitable for carbon capture sodium base adsorbent.This method can effectively reduce Adsorbent wear phenomenon during carbon capture is a kind of prioritization scheme that adsorbent stablizes industrialization operation.
Realize that this method is specific it is an object of that present invention to provide a kind of forming method suitable for carbon capture sodium base adsorbent Are as follows:
After activated alumina bead is crushed, active alumina powder is slowly added to sodium carbonate liquor dipping stirring, is obtained It is dried to leather hard solid, then calcines；Calcined adsorbent blocks of solid is crushed, and absorbent particles are carried out It fluidizes, the adsorbent after fluidisation is sieved, and required adsorbent can be obtained；
After the fine powder of elutriation continues crushing in fluid mapper process, then be mixed with water, drying, is broken at calcining Broken, fluidisation and screening, obtain required adsorbent.
Further, dipping whipping temp is set as 40 DEG C.
Further, drying temperature is 110 DEG C, drying time 12h.
Further, calcination temperature is 400 DEG C, heating rate 3K/min, calcination time 4h.
Further, fluidizing agent is air, and fluidization number is 2~3, and the fluidisation time is 4~12h.
The present invention compares compared with the existing technology, has the advantage that
1, the method and process for being adapted to carbon capture sodium base adsorbent of the invention is simple, convenient and efficient；2, present invention preparation Absorbent particles sphericities it is high, intensity is high, wear-resistant, corrodes to equipment small, and sorbent circulation utilization rate is high.
Detailed description of the invention
Fig. 1 is that (a) is crushed formed absorbent SEM scanning electron microscope (SEM) photograph；(b) formed absorbent SEM scanning electron microscope (SEM) photograph is fluidized.
Fig. 2 is the wear rate comparison diagram of different molding mode adsorbents.
Fig. 3 is process flow chart of the invention.
Specific embodiment
Comparative example 1
1. prepared by adsorbent
660g sodium carbonate is taken, in the deionization being dissolved at 40 DEG C, forms sodium carbonate liquor.Take 1340g active oxidation Aluminium obtains active alumina powder and is slowly added in sodium carbonate liquor, in electric blender after ball mill grinding Lower dipping stirring 8h obtains leather hard solid.Leather hard solid dry 12h at 110 DEG C in drying box is obtained, then in horse Obtained adsorbent blocks of solid is crushed in crusher, will break by not 400 DEG C of calcinings 4h, heating rate 3K/min in furnace Adsorbent after broken sieves in vibrating sieving machine, and required adsorbent can be obtained.
2. wear rate is tested
It connects and carries out testing required experimental rig, device is carried out to check whether there is gas leak phenomenon.With electronics day It is flat to weigh the adsorbent that 200g partial size is 0.4-0.5mm and be denoted as M0.Weighed adsorbent is put into fluidized-bed reactor, is opened Air compressor, control air mass flow are 2m3/h.After 4h, air compressor is closed, adsorbent is taken out, is measured with electronic balance The quality of adsorbent simultaneously writes down Mi.It repeats the above steps, cyclic test.Total fluidisation wearing- in period is for for 24 hours.And with following public affairs The wear rate of formula (1) calculating adsorbent.
Wear rate after broken formed absorbent is worn for 24 hours on fluidized bed is 0.79%/h.
Embodiment 1
660g sodium carbonate is taken, is dissolved at 40 DEG C in a certain amount of deionization, sodium carbonate liquor is formed.Take 1340g Activated alumina obtains active alumina powder and is slowly added in sodium carbonate liquor, in electricity after ball mill grinding Dipping stirring 8h obtains leather hard solid under dynamic blender.Leather hard solid dry 12h at 110 DEG C in drying box is obtained, Then 400 DEG C of calcinings 4h, heating rate 3K/min in Muffle furnace break obtained adsorbent blocks of solid in crusher It is broken, absorbent particles will be obtained in bubbling fluidized bed and fluidize 12h, the adsorbent after fluidisation is sieved in vibrating sieving machine, be can be obtained Required adsorbent.For the fine powder of the elutriation in bubbling fluidized bed, after dust settling pocket is collected, it is placed in ball mill and crushes Afterwards, obtained powder adsorbent is mixed in electric blender with deionized water, prepares and flows using above-mentioned adsorbent Required adsorbent can be obtained in journey.
2. wear rate is tested
It connects and carries out testing required experimental rig, device is carried out to check whether there is gas leak phenomenon.With electronics day It is flat to weigh the adsorbent that 200g partial size is 0.4-0.5mm and be denoted as M0.Weighed adsorbent is put into fluidized-bed reactor, is opened Air compressor, control air mass flow are 2m3/h.After 4h, air compressor is closed, adsorbent is taken out, is measured with electronic balance The quality of adsorbent simultaneously writes down Mi.It repeats the above steps, cyclic test.Total fluidisation wearing- in period is for for 24 hours.And with following public affairs The wear rate of formula (1) calculating adsorbent.
Wear rate after broken formed absorbent is worn for 24 hours on fluidized bed is 0.35%/h
Embodiment 2
660g potassium carbonate is taken, is dissolved in deionization at 40 DEG C, solution of potassium carbonate is formed.Take 1340g activated alumina It after ball mill grinding, obtains active alumina powder and is slowly added in solution of potassium carbonate, under electric blender Dipping stirring 8h obtains leather hard solid.Leather hard solid dry 12h at 110 DEG C in drying box is obtained, then in Muffle Obtained adsorbent blocks of solid is crushed in crusher, will obtain by 400 DEG C of calcinings 4h, heating rate 3K/min in furnace Absorbent particles fluidize 12h in bubbling fluidized bed, and the adsorbent after fluidisation sieves in vibrating sieving machine, and required suction can be obtained Attached dose.For the fine powder of the elutriation in bubbling fluidized bed, after dust settling pocket is collected, it is placed in ball mill after crushing, by what is obtained Powder adsorbent is mixed in electric blender with deionized water, using above-mentioned adsorbent preparation flow, can be obtained Required adsorbent.

Claims (5)

1. a kind of forming method suitable for carbon capture sodium base adsorbent, which is characterized in that after activated alumina bead is crushed, Active alumina powder is slowly added to sodium carbonate liquor dipping stirring, leather hard solid is obtained and is dried, then calcine；It forges Adsorbent blocks of solid after burning is crushed, and absorbent particles are fluidized, and the adsorbent after fluidisation is sieved Obtain required adsorbent；
After the fine powder of elutriation continues crushing in fluid mapper process, then be mixed with water, drying, calcining, broken, stream Change and sieve, obtains required adsorbent.
2. the forming method of carbon capture sodium base adsorbent according to claim 1, which is characterized in that the dipping stirring Temperature is set as 40 DEG C.
3. the forming method of carbon capture sodium base adsorbent according to claim 1, which is characterized in that the drying temperature It is 110 DEG C, drying time 12h.
4. the forming method of carbon capture sodium base adsorbent according to claim 1, which is characterized in that the calcination temperature It is 400 DEG C, heating rate 3K/min, calcination time 4h.
5. the forming method of carbon capture sodium base adsorbent according to claim 1, which is characterized in that the fluidizing agent For air, fluidization number is 2~3, and the fluidisation time is 4~12h.
CN201910601612.9A 2019-07-05 2019-07-05 A kind of forming method suitable for carbon capture sodium base adsorbent Pending CN110523366A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129093A (en) * 1987-11-13 1989-05-22 Kureha Chem Ind Co Ltd Method and apparatus for activating molded pitch
WO2002066152A2 (en) * 2001-01-05 2002-08-29 Questair Technologies, Inc. Adsorbent coating compositions, laminates and adsorber elements comprising such compositions and methods for their manufacture and use
CN101411338A (en) * 2008-12-03 2009-04-22 安徽农业大学 Beauveria bassiana granular formulation and preparation method thereof
US20100116134A1 (en) * 2007-03-08 2010-05-13 Jian Zheng High rate and high crush-strength adsorbents
CN101961638A (en) * 2010-10-22 2011-02-02 浙江大学 Method for preparing wear-resistant nano calcium oxide-based carbon dioxide reaction adsorbent
CN104759262A (en) * 2015-02-13 2015-07-08 云南中烟工业有限责任公司 Green bean porous particle and application thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129093A (en) * 1987-11-13 1989-05-22 Kureha Chem Ind Co Ltd Method and apparatus for activating molded pitch
WO2002066152A2 (en) * 2001-01-05 2002-08-29 Questair Technologies, Inc. Adsorbent coating compositions, laminates and adsorber elements comprising such compositions and methods for their manufacture and use
US20100116134A1 (en) * 2007-03-08 2010-05-13 Jian Zheng High rate and high crush-strength adsorbents
CN101411338A (en) * 2008-12-03 2009-04-22 安徽农业大学 Beauveria bassiana granular formulation and preparation method thereof
CN101961638A (en) * 2010-10-22 2011-02-02 浙江大学 Method for preparing wear-resistant nano calcium oxide-based carbon dioxide reaction adsorbent
CN104759262A (en) * 2015-02-13 2015-07-08 云南中烟工业有限责任公司 Green bean porous particle and application thereof

Non-Patent Citations (4)

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Title
ZHIKANG XU ET AL.: ""Understanding the CO2 sorption mechanisms of the MgO-doped Na-based sorbent at low temperatures"", 《GREENHOUSE GAS SCI TECHNOL.》 *
国帅 等: ""气固流化床新型 CO2吸附剂的制备及吸附性能"", 《青岛科技大学学报(自然科学版)》 *
张文静: ""复合型 CO2吸附剂的脱碳特性及其失效机理研究"", 《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》 *
江汉: ""一种球形颗粒硫磺成形技术——Kaltenbach -Thǜring 流化床转鼓造粒工艺"", 《硫酸工业》 *

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