CN106179172A - A kind of preparation method of modified oxidized calcio high temperature carbon dioxide adsorbent - Google Patents

A kind of preparation method of modified oxidized calcio high temperature carbon dioxide adsorbent Download PDF

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CN106179172A
CN106179172A CN201610572578.3A CN201610572578A CN106179172A CN 106179172 A CN106179172 A CN 106179172A CN 201610572578 A CN201610572578 A CN 201610572578A CN 106179172 A CN106179172 A CN 106179172A
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carbon dioxide
calcium carbonate
high temperature
calcio
modified
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CN106179172B (en
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周荣
林茂平
陆娜
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Jingle Hengxin Building Materials Co., Ltd.
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周荣
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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
    • B01J20/04—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
    • B01J20/041—Oxides or hydroxides
    • 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
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • B01J2220/4881—Residues from shells, e.g. eggshells, mollusk shells
    • 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]
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    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
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Abstract

The invention discloses the preparation method of a kind of modified oxidized calcio high temperature carbon dioxide adsorbent, belong to technical field of absorbent.The present invention, with Crusta Limax as raw material, obtains calcium carbonate through brine wash attrition grinding, composite modified to it with ginkgo extract and the microorganism rich in flavone, uses hydrothermal deposition method in carbonic acid Surface coating aluminum source, i.e. obtains carbon dioxide absorber after high-temperature calcination.The present invention passes through the ginkgetin rich in hydroxyl to calcium carbonate surface modifying, increase its surface hydroxyl functional group, avtive spot is provided for aluminum source deposition, calcium oxide surface is made to deposit one layer of crystalline alumina through high-temperature calcination, add the thermostability of calcium oxide, improve the calcium oxide adsorbance to carbon dioxide simultaneously, solve conventional oxidation calcium adsorbent thermostability not enough, its microstructure change it is easily caused under the effect of high temperature thermal decomposition, thus affect its adsorbance and recycle the problem of adsorption rate, have broad application prospects.

Description

A kind of preparation method of modified oxidized calcio high temperature carbon dioxide adsorbent
Technical field
The invention discloses the preparation method of a kind of modified oxidized calcio high temperature carbon dioxide adsorbent, belong to adsorbent skill Art field.
Background technology
Carbon dioxide is the predominant gas causing greenhouse effect, and the discharge capacity of whole world carbon dioxide is 20,000,000,000/year, its Middle Fossil fuel thermal power plant CO2 emissions account for 1/3, and the continuing to increase, to the sustainable development of the energy of this discharge capacity The existence of exhibition, the protection of ecological environment and the mankind brings serious impact.The high temperature of the high energy-consuming industry such as coke-oven plant, steam power plant Containing substantial amounts of carbon dioxide in waste gas, directly environment will be adversely affected by discharge, also result in a large amount of waves of heat energy simultaneously Take.During natural gas from coal with synthesis gas as raw material, containing certain density carbon dioxide in unstripped gas.Titanium dioxide simultaneously Carbon also can be continuously generated in course of reaction, the carbon dioxide of high concentration will suppress methanation reaction proceed be unfavorable for Whole technique, needs the carbon dioxide of removing excess in time.Although the clean energy resourcies such as nuclear energy, wind energy, solar energy develop rapidly, but Within the longer time, Fossil fuel is still that global topmost primary energy.The inter-governmental climate change of the United Nations is special Door committee is using the heaviest as the year two thousand fifty reduction of greenhouse gas discharge of collecting carbonic anhydride and the Plugging Technology Applied for coal-burning power plant The technique direction wanted.
At present, studying more carbon dioxide high-temperature adsorbing agent both at home and abroad is that houghite compound, lithio and calcio are inhaled Attached dose.Wherein, at first as the houghite of the carbon dioxide absorber in absorption enhanced hydrogen making by natural gas reformation reaction Compound is industrial important adsorbing separation, catalysis and ion exchange material, but its adsorption capacity is relatively low；Lithio and calcio are inhaled Attached dose is circulated trapping carbon dioxide, wherein has advantage on lithio adsorbent carbonation rate and regeneration rate, but it becomes This is higher, and Ca-base adsorbent source is wide, low cost, decarburization efficiency are high, thus is industrially widely used.But Use process finds, it is relatively low and easily sinter when high-temperature calcination that calcium oxide adsorbent also exists adsorption rate, causes specific surface Long-pending and porosity reduces, and causes the conversion ratio of adsorbent to decline, affects the defects such as absorbability.
Summary of the invention
The technical problem that present invention mainly solves: for current conventional oxidation calcium as high temperature carbon dioxide adsorbent, resistance to Hot deficiency, is easily caused its microstructure change under the effect of high temperature thermal decomposition, thus affects its adsorbance and circulation makes By the problem of adsorption rate, it is provided that the preparation method of a kind of modified oxidized calcio high temperature carbon dioxide adsorbent.The present invention is with snail Cattle shell is raw material, obtains calcium carbonate through brine wash attrition grinding, compound changes it with rich in the ginkgo extract of flavone and microorganism Property, use hydrothermal deposition method in carbonic acid Surface coating aluminum source, after high-temperature calcination, i.e. obtain carbon dioxide absorber.The present invention is by richness The ginkgetin of hydroxyl, to calcium carbonate surface modifying, increases its surface hydroxyl functional group, provides avtive spot for aluminum source deposition, Make calcium oxide surface deposit one layer of crystalline alumina through high-temperature calcination, add the thermostability of calcium oxide, improve oxidation simultaneously The calcium adsorbance to carbon dioxide, solves conventional oxidation calcium adsorbent thermostability not enough, holds under the effect of high temperature thermal decomposition It is easily caused its microstructure change, thus affects its adsorbance and recycle the problem of adsorption rate, before there is wide application Scape.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
(1) weighing 2～3kg white jade snail shells and pour in wooden barrel, the quality adding Crusta Limax cumulative volume 5～8 times in bucket is dense Degree is 5～7% sodium chloride solution, is placed on shaking table vibration steeped overnight, and vibration is filtered isolated Crusta Limax after terminating and put into Baking oven is dried 2～4h at 105～110 DEG C；
(2) dried Crusta Limax first being put into jet mill pulverize, isolated particle diameter is the fragment of 0.5～1.0cm, then Fragment is put into after rustless steel mortar continues underhand polish 1～2h and cross 200 mesh standard sieves, obtain white calcium carbonate powder, standby；
(3) weigh 1～2kg ginkgo nut peeling and taking sarcocarp, be that Semen Ginkgo sarcocarp is loaded wet together with dehydrated alcohol by 1:3 by solid-to-liquid ratio In formula ball mill, then it is that 1:20 adds zirconium oxide ball milling pearl, discharging after wet ball-milling 1～2h in ball grinder by ratio of grinding media to material, obtains To ginkgo nut serosity；
(4) above-mentioned ginkgo nut serosity is proceeded in supersound extraction instrument, extract 20～30min with 200～300W power ultrasonics, extract After end, serosity is moved into horizontal centrifuge, with 8000～9000r/min rotating speed centrifugal treating 15～20min, in isolated Clear liquid；
(5) load after standby calcium carbonate powder and supernatant being mixed for 1:1 by volume in pottery fermentation tank and stir Mixed substrates, by inoculum concentration be 8% in fermentation tank access Ruminococcus albus, put into 35～40 DEG C of constant temperature after hermetically sealed can mouth In case, modified 10～12 days of heat-preservation fermentation, modification is centrifugally separating to obtain modified calcium carbonate powder after terminating；
(6) weigh 8～10g above-mentioned modified calcium carbonate powder in hydrothermal reaction kettle, add 700～800mL dehydrated alcohol and 30 ～40g aluminum nitrate, after stirring, raising temperature of reaction kettle is to 170～190 DEG C, is incubated deposition reaction 6～8h, after reaction bonded Standing is cooled to room temperature, by centrifuge isolated lower sediment；
(7) precipitation obtained above is put in tube type resistance furnace, be warming up to 900～1000 DEG C with 5 DEG C/min rate program, protect Stop heating after temperature calcining 10～12h, treat that it naturally cools to room temperature discharging, obtain modified oxidized calcio high temperature carbon dioxide and inhale Attached dose.
The application process of the present invention is: weigh the modified oxidized calcio high temperature carbon dioxide that the 300～500g present invention prepare Adsorbent is placed in both sides all to be had in the transparent vessel of interface, and seals two side interfaces, interface side and industrial exhaust gas mouth with Cotton Gossypii Connecting, opposite side is used for aerofluxus, and after testing, the gas absorption amount of the carbon dioxide absorber that the present invention prepares is 0.4～0.6g/ m2, the more common calcium oxide adsorbent of adsorption rate improves 40～50%, can be recycled 4～6 times.
The invention has the beneficial effects as follows:
(1) the inventive method is simple, and the adsorbent of preparation has faster adsorption rate and bigger adsorption capacity, absorption Performance is good, is greatly improved ability and the efficiency processing carbon dioxide, reduces removing CO2Cost；
(2) adsorbent prepared shows high CO during multi cycle2Adsorption capacity and high absorption stability；
(3) the carbon dioxide absorber preparation cost that the present invention prepares is cheap, environmental protection.
Detailed description of the invention
First weigh 2～3kg white jade snail shells and pour in wooden barrel, in bucket, adding Crusta Limax cumulative volume 5～the matter of 8 times Amount concentration is 5～7% sodium chloride solution, is placed on shaking table vibration steeped overnight, and vibration filters isolated Crusta Limax after terminating Put into baking oven at 105～110 DEG C, be dried 2～4h；Dried Crusta Limax is first put into jet mill pulverize, isolated Particle diameter is the fragment of 0.5～1.0cm, then it is accurate that fragment is put into 200 targets excessively after rustless steel mortar continues underhand polish 1～2h Sieve, obtains white calcium carbonate powder, standby；Weigh 1～2kg ginkgo nut peeling and taking sarcocarp, be that 1:3 is by Semen Ginkgo sarcocarp by solid-to-liquid ratio Load in wet ball mill together with dehydrated alcohol, then be that 1:20 adds zirconium oxide ball milling pearl in ball grinder by ratio of grinding media to material, wet Discharging after formula ball milling 1～2h, obtains ginkgo nut serosity；Above-mentioned ginkgo nut serosity is proceeded in supersound extraction instrument, with 200～300W Power ultrasonic extract 20～30min, extract terminate after serosity is moved into horizontal centrifuge, with 8000～9000r/min rotating speeds from The heart processes 15～20min, isolated supernatant；It is after standby calcium carbonate powder and supernatant are mixed by 1:1 by volume Load in pottery fermentation tank and stir to obtain mixed substrates, be 8% in fermentation tank, to access Ruminococcus albus by inoculum concentration, close Putting in 35～40 DEG C of calorstats after sealed cans mouth, modified 10～12 days of heat-preservation fermentation, modification is centrifugally separating to obtain modification after terminating Calcium carbonate powder；Weigh 8～10g above-mentioned modified calcium carbonate powder in hydrothermal reaction kettle, add 700～800mL dehydrated alcohol With 30～40g aluminum nitrates, after stirring, raising temperature of reaction kettle is to 170～190 DEG C, is incubated deposition reaction 6～8h, reaction knot Stand after conjunction and be cooled to room temperature, by centrifuge isolated lower sediment；Precipitation obtained above is put in tube type resistance furnace, It is warming up to 900～1000 DEG C with 5 DEG C/min rate program, stops heating after insulation calcining 10～12h, treat that it naturally cools to room Temperature discharging, obtains modified oxidized calcio high temperature carbon dioxide adsorbent.
Example 1
First weighing 2kg white jade snail shell and pour in wooden barrel, the mass concentration adding Crusta Limax cumulative volume 5 times in bucket is 5% Sodium chloride solution, is placed on shaking table vibration steeped overnight, and vibration is filtered isolated Crusta Limax after terminating and put into baking oven 105 2h it is dried at DEG C；Dried Crusta Limax first being put into jet mill pulverize, isolated particle diameter is the fragment of 0.5cm, then Fragment is put into after rustless steel mortar continues underhand polish 1h and cross 200 mesh standard sieves, obtain white calcium carbonate powder, standby；Claim Take 1kg ginkgo nut peeling and taking sarcocarp, be that Semen Ginkgo sarcocarp is loaded in wet ball mill together with dehydrated alcohol by 1:3 by solid-to-liquid ratio, It is that 1:20 adds zirconium oxide ball milling pearl, discharging after wet ball-milling 1h in ball grinder by ratio of grinding media to material again, obtains ginkgo nut serosity；Will Above-mentioned ginkgo nut serosity proceeds in supersound extraction instrument, extracts 20min with 200W power ultrasonic, extracts to be moved into by serosity after terminating and crouches Formula centrifuge, with 8000r/min rotating speed centrifugal treating 15min, isolated supernatant；It is that 1:1 is by standby carbon by volume Load in pottery fermentation tank after acid calcium powder and supernatant mixing and stir to obtain mixed substrates, be 8% to fermentation tank by inoculum concentration Middle access Ruminococcus albus, puts in 35 DEG C of calorstats after hermetically sealed can mouth, modified 10 days of heat-preservation fermentation, and modification is centrifugal after terminating Isolated modified calcium carbonate powder；Weigh 8g above-mentioned modified calcium carbonate powder in hydrothermal reaction kettle, add the anhydrous second of 700mL Alcohol and 30g aluminum nitrate, after stirring, raising temperature of reaction kettle is to 170 DEG C, is incubated deposition reaction 6h, stands cold after reaction bonded But to room temperature, by centrifuge isolated lower sediment；Precipitation obtained above is put in tube type resistance furnace, with 5 DEG C/min Rate program is warming up to 900 DEG C, stops heating, treat that it naturally cools to room temperature discharging, obtain modified oxidized after insulation calcining 10h Calcio high temperature carbon dioxide adsorbent.
The application process of the present invention is: weigh the modified oxidized calcio high temperature carbon dioxide adsorbent that the 300g present invention prepares Being placed in both sides all to have in the transparent vessel of interface, and seal two side interfaces with Cotton Gossypii, interface side connects with industrial exhaust gas mouth, separately Side is used for aerofluxus, and after testing, the gas absorption amount of the carbon dioxide absorber that the present invention prepares is 0.4g/m2, adsorption rate is relatively Common calcium oxide adsorbent improves 40%, can be recycled 4 times.
Example 2
First weighing 2.5kg white jade snail shell and pour in wooden barrel, the quality adding Crusta Limax cumulative volume 5～8 times in bucket is dense Degree is 6% sodium chloride solution, is placed on shaking table vibration steeped overnight, and vibration is filtered isolated Crusta Limax after terminating and put into baking Case is dried 3h at 107 DEG C；Dried Crusta Limax first being put into jet mill pulverize, isolated particle diameter is 0.7cm's Fragment, then fragment is put into 200 mesh standard sieves excessively after rustless steel mortar continuation underhand polish 1.5h, obtain white calcium carbonate powder End, standby；Weigh 1.5kg ginkgo nut peeling and taking sarcocarp, be that Semen Ginkgo sarcocarp is loaded wet together with dehydrated alcohol by 1:3 by solid-to-liquid ratio In formula ball mill, then it is that 1:20 adds zirconium oxide ball milling pearl, discharging after wet ball-milling 1.5h in ball grinder by ratio of grinding media to material, obtains Ginkgo nut serosity；Proceeding in supersound extraction instrument by above-mentioned ginkgo nut serosity, extract 25min with 250W power ultrasonic, extraction terminates After serosity is moved into horizontal centrifuge, with 8500r/min rotating speed centrifugal treating 17min, isolated supernatant；It is by volume 1:1 loads in pottery fermentation tank the mixed substrates that stirs to obtain after standby calcium carbonate powder and supernatant being mixed, by inoculation Amount is 8% to access Ruminococcus albus in fermentation tank, puts in 37 DEG C of calorstats after hermetically sealed can mouth, modified 11 days of heat-preservation fermentation, Modification is centrifugally separating to obtain modified calcium carbonate powder after terminating；Weigh 9g above-mentioned modified calcium carbonate powder in hydrothermal reaction kettle, Adding 750mL dehydrated alcohol and 35g aluminum nitrate, after stirring, raising temperature of reaction kettle is to 180 DEG C, is incubated deposition reaction 7h, Stand after reaction bonded and be cooled to room temperature, by centrifuge isolated lower sediment；Precipitation obtained above is put into tubular type electricity In resistance stove, it is warming up to 950 DEG C with 5 DEG C/min rate program, stops heating after insulation calcining 11h, treat that it naturally cools to room temperature Discharging, obtains modified oxidized calcio high temperature carbon dioxide adsorbent.
The application process of the present invention is: weigh the modified oxidized calcio high temperature carbon dioxide adsorbent that the 400g present invention prepares Being placed in both sides all to have in the transparent vessel of interface, and seal two side interfaces with Cotton Gossypii, interface side connects with industrial exhaust gas mouth, separately Side is used for aerofluxus, and after testing, the gas absorption amount of the carbon dioxide absorber that the present invention prepares is 0.5g/m2, adsorption rate is relatively Common calcium oxide adsorbent improves 45%, can be recycled 5 times.
Example 3
First weighing 3kg white jade snail shell and pour in wooden barrel, the mass concentration adding Crusta Limax cumulative volume 8 times in bucket is 7% Sodium chloride solution, is placed on shaking table vibration steeped overnight, and vibration is filtered isolated Crusta Limax after terminating and put into baking oven 110 4h it is dried at DEG C；Dried Crusta Limax first being put into jet mill pulverize, isolated particle diameter is the fragment of 1.0cm, then Fragment is put into after rustless steel mortar continues underhand polish 2h and cross 200 mesh standard sieves, obtain white calcium carbonate powder, standby；Claim Take 2kg ginkgo nut peeling and taking sarcocarp, be that Semen Ginkgo sarcocarp is loaded in wet ball mill together with dehydrated alcohol by 1:3 by solid-to-liquid ratio, It is that 1:20 adds zirconium oxide ball milling pearl, discharging after wet ball-milling 2h in ball grinder by ratio of grinding media to material again, obtains ginkgo nut serosity；Will Above-mentioned ginkgo nut serosity proceeds in supersound extraction instrument, extracts 30min with 300W power ultrasonic, extracts to be moved into by serosity after terminating and crouches Formula centrifuge, with 9000r/min rotating speed centrifugal treating 20min, isolated supernatant；It is that 1:1 is by standby carbon by volume Load in pottery fermentation tank after acid calcium powder and supernatant mixing and stir to obtain mixed substrates, be 8% to fermentation tank by inoculum concentration Middle access Ruminococcus albus, puts in 40 DEG C of calorstats after hermetically sealed can mouth, modified 12 days of heat-preservation fermentation, and modification is centrifugal after terminating Isolated modified calcium carbonate powder；Weigh 10g above-mentioned modified calcium carbonate powder in hydrothermal reaction kettle, add 800mL anhydrous Ethanol and 40g aluminum nitrate, after stirring, raising temperature of reaction kettle is to 190 DEG C, is incubated deposition reaction 8h, stands after reaction bonded It is cooled to room temperature, by centrifuge isolated lower sediment；Precipitation obtained above is put in tube type resistance furnace, with 5 DEG C/ Min rate program is warming up to 1000 DEG C, stops heating, treat that it naturally cools to room temperature discharging, obtain modified after insulation calcining 12h Calcium oxide-based high temperature carbon dioxide adsorbent.
The application process of the present invention is: weigh the modified oxidized calcio high temperature carbon dioxide adsorbent that the 500g present invention prepares Being placed in both sides all to have in the transparent vessel of interface, and seal two side interfaces with Cotton Gossypii, interface side connects with industrial exhaust gas mouth, separately Side is used for aerofluxus, and after testing, the gas absorption amount of the carbon dioxide absorber that the present invention prepares is 0.6g/m2, adsorption rate is relatively Common calcium oxide adsorbent improves 50%, can be recycled 6 times.

Claims (1)

1. the preparation method of a modified oxidized calcio high temperature carbon dioxide adsorbent, it is characterised in that concrete preparation process is:
(1) weighing 2～3kg white jade snail shells and pour in wooden barrel, the quality adding Crusta Limax cumulative volume 5～8 times in bucket is dense Degree is 5～7% sodium chloride solution, is placed on shaking table vibration steeped overnight, and vibration is filtered isolated Crusta Limax after terminating and put into Baking oven is dried 2～4h at 105～110 DEG C；
(2) dried Crusta Limax first being put into jet mill pulverize, isolated particle diameter is the fragment of 0.5～1.0cm, then Fragment is put into after rustless steel mortar continues underhand polish 1～2h and cross 200 mesh standard sieves, obtain white calcium carbonate powder, standby；
(3) weigh 1～2kg ginkgo nut peeling and taking sarcocarp, be that Semen Ginkgo sarcocarp is loaded wet together with dehydrated alcohol by 1:3 by solid-to-liquid ratio In formula ball mill, then it is that 1:20 adds zirconium oxide ball milling pearl, discharging after wet ball-milling 1～2h in ball grinder by ratio of grinding media to material, obtains To ginkgo nut serosity；
(4) above-mentioned ginkgo nut serosity is proceeded in supersound extraction instrument, extract 20～30min with 200～300W power ultrasonics, extract After end, serosity is moved into horizontal centrifuge, with 8000～9000r/min rotating speed centrifugal treating 15～20min, in isolated Clear liquid；
(5) load after standby calcium carbonate powder and supernatant being mixed for 1:1 by volume in pottery fermentation tank and stir Mixed substrates, by inoculum concentration be 8% in fermentation tank access Ruminococcus albus, put into 35～40 DEG C of constant temperature after hermetically sealed can mouth In case, modified 10～12 days of heat-preservation fermentation, modification is centrifugally separating to obtain modified calcium carbonate powder after terminating；
(6) weigh 8～10g above-mentioned modified calcium carbonate powder in hydrothermal reaction kettle, add 700～800mL dehydrated alcohol and 30 ～40g aluminum nitrate, after stirring, raising temperature of reaction kettle is to 170～190 DEG C, is incubated deposition reaction 6～8h, after reaction bonded Standing is cooled to room temperature, by centrifuge isolated lower sediment；
(7) precipitation obtained above is put in tube type resistance furnace, be warming up to 900～1000 DEG C with 5 DEG C/min rate program, protect Stop heating after temperature calcining 10～12h, treat that it naturally cools to room temperature discharging, obtain modified oxidized calcio high temperature carbon dioxide and inhale Attached dose.
CN201610572578.3A 2016-07-20 2016-07-20 A kind of preparation method of modified oxidized calcium base high temperature carbon dioxide adsorbent Active CN106179172B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114405227A (en) * 2022-01-25 2022-04-29 浙江红狮环保股份有限公司 Method for reducing carbon dioxide at kiln tail of cement kiln by adsorption method

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CN103962087A (en) * 2014-04-16 2014-08-06 浙江大学 Surface coating modified nano calcium oxide based CO2 adsorbing agent and preparation method thereof
CN105705233A (en) * 2013-09-12 2016-06-22 国家科研中心 Use of certain organic materials, containing alkali or alkaline-earth metals, for implementing organic chemical reactions

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US20140154162A1 (en) * 2003-02-06 2014-06-05 The Ohio State University SEPARATION OF CARBON DIOXIDE (CO2) FROM GAS MIXTURES BY CALCIUM BASED REACTION SEPARATION (CaRS-CO2) PROCESS
CN1762572A (en) * 2005-09-23 2006-04-26 浙江大学 High temperature carbon dioxide adsorbent containing silicon nano calcium oxide, its preparation process and application in hydrogen production process
CN101537339A (en) * 2009-03-18 2009-09-23 浙江大学 Preparation of CaTiO3-coated calcium oxide-based CO2 absorbent
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
CN105705233A (en) * 2013-09-12 2016-06-22 国家科研中心 Use of certain organic materials, containing alkali or alkaline-earth metals, for implementing organic chemical reactions
CN103962087A (en) * 2014-04-16 2014-08-06 浙江大学 Surface coating modified nano calcium oxide based CO2 adsorbing agent and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114405227A (en) * 2022-01-25 2022-04-29 浙江红狮环保股份有限公司 Method for reducing carbon dioxide at kiln tail of cement kiln by adsorption method

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