CN105289537A - Middle-temperature carbon dioxide solid absorbent and preparation method thereof - Google Patents
Middle-temperature carbon dioxide solid absorbent and preparation method thereof Download PDFInfo
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- CN105289537A CN105289537A CN201510732506.6A CN201510732506A CN105289537A CN 105289537 A CN105289537 A CN 105289537A CN 201510732506 A CN201510732506 A CN 201510732506A CN 105289537 A CN105289537 A CN 105289537A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
Abstract
The invention discloses a middle-temperature carbon dioxide solid absorbent. The middle-temperature carbon dioxide solid absorbent is prepared from 5wt%-30wt% of active carbon and 70wt%-95wt% of composite metal oxide, wherein the composite metal oxide is loaded on the surface of the active carbon; and the composite metal oxide comprises a metal element with a bivalent valence and a metal element with a trivalent valence. The carbon dioxide solid absorbent disclosed by the invention has good absorption kinetics and carbon dioxide absorption amount. The invention further discloses two preparation methods of the middle-temperature carbon dioxide solid absorbent.
Description
Technical field
The present invention relates to a kind of carbon-dioxide absorbent, especially relate to warm carbon dioxide solid absorbent in one.The invention still further relates to the forming method of described middle temperature carbon dioxide solid absorbent.
Background technology
Current, increasing research shows that fossil energies a large amount of in the industry carbon dioxide discharged that burns is the main cause causing global warming.According to
governmentbetween climate change special
the committee(IPCC) data statistics, from 2000 to 2010 years, global warming gas (based on carbon dioxide) discharge capacity increased fast with the speed in 2.2%/year.In recent years, the reduction of discharging of carbon dioxide obtains respectively
government of stateattention.In November, 2014, China and the United States endorsed the joint statement about reply climate change and clean energy resource cooperation in Beijing, first Chinese is promised to undertake, to the year two thousand thirty, stopping is increased CO2 emission by China, and this equals the peak point of having promised to undertake discharge capacity.
In chemical industry and energy industry, traditional absorption and the method for separating carbon dioxide pass in the solution containing carbon-dioxide absorbent by the gaseous mixture containing carbon dioxide, at normal temperature or low temperature of absorption, and desorption under high temperature.Often there are two shortcomings in this solvent absorption: (1) solvent is easily carried and enters gas product, causes purity of product gas to decline and absorbent loss; (2) carbon dioxide absorbed needs the desorb of hot recycling ability, and energy consumption is larger.
Based on such present situation, the more promising developing direction that carbon dioxide absorption is separated is carbon dioxide pressure-variable adsorption (PSA) technique, and one of technological difficulties of this technique develop suitable drikold absorbent.From the operating temperature range of absorbing carbon dioxide, under normal temperature be suitable for physical absorbent, as molecular sieve,
active carbon, zeolite etc.These absorbent infiltration rates are very fast, but its uptake declines fast along with the rising of operating temperature; Chemical absorbent can be adopted, as calcium oxide, lithium zirconate, sodium metasilicate etc. under high temperature.These absorbent uptakes are comparatively large, but absorption rate is general not high, and desorb difficulty is larger.Regrettably, the carbon-dioxide absorbent of (200-300 DEG C) under current market not having sale be applicable to middle temperature.Experimental study shows, under middle temperature operating mode, physical absorbent active carbon has absorption rate faster, but its uptake lower (< 0.1mmol/g); Composite metal oxide (is calcined after obtaining presoma by divalence and trivalent metal ion by co-precipitation or urea method and is formed, as Al-Mg composite metal oxide) there is larger uptake (0.1 ~ 0.6mmol/g), but specific area is lower, absorption rate is slower, and composite metal oxide difficult forming, easy efflorescence after re-absorption effect/desorption cycle.Desirable absorbent needs to have higher uptake and good absorption dynamics, and can realize the regeneration of absorbent by the partial pressure of carbon dioxide reduced in gas phase.
Summary of the invention
First technical problem to be solved by this invention, is just to provide warm carbon dioxide solid absorbent in one, and it has good absorption dynamics and carbon dioxide absorption amount.
Second technical problem to be solved by this invention, is just to provide two kinds of preparation methods of this middle temperature carbon-dioxide absorbent.
Solve above-mentioned first technical problem, the technical solution used in the present invention is as follows:
Warm carbon dioxide solid absorbent in one, it is characterized in that: be made up of (the gross mass percentage of middle temperature carbon dioxide solid absorbent is 100wt%) the active carbon of 5 ~ 30wt% and the composite metal oxide of 70 ~ 95wt%, described composite metal oxide load is at activated carbon surface; Described composite metal oxide comprises metallic element that a kind of chemical valence is divalence and a kind of chemical valence is the metallic element of trivalent.
Preferably, described chemical valence is the metallic element of divalence is Co, Cu or Mg, and described chemical valence is the metallic element of trivalent is Al, Fe, Ga, Cr or Ce.
Preferably, the specific area of described active carbon is 400 ~ 1800m
2/ g, granularity is 4 ~ 20 orders.
Solve above-mentioned second technical problem, the technical solution used in the present invention is as follows:
Manufacture a method for middle temperature carbon dioxide solid absorbent mentioned above, it is characterized in that comprising the following steps:
(1) with the mixed in molar ratio divalent metal salt of 3:1 and trivalent metal salt, described divalent metal salt is for being selected from Co (NO
3)
2, CoCl
2, CuCl
2, Cu (NO
3)
2, CuSO
4, Mg (NO
3)
2, MgCl
2in one; Described trivalent metal salt is for being selected from Al (NO
3)
3, AlCl
3, Fe (NO
3)
3, FeCl
3, Ce
2(SO
4)
3with Ce (NO
3)
3in one;
(2) by soluble in water for above-mentioned hybrid metal ion salt, the hybrid metal ion salt solution that concentration is 2 ~ 3mol/L is configured to;
(3) urea is added described hybrid metal ion salt solution, make the urea concentration in the solution of gained be 1 ~ 1.5mol/L;
(4) active carbon is added the solution of step (3) gained with the amount of 0.1 ~ 0.5g/mL, stir 1 ~ 3h;
(5) mixture of filtration step (4) gained, heats 12 ~ 24h by the filter residue of gained at 105 ~ 120 DEG C;
(6) with the filter residue of deionized water rinsing step (5) gained, until the pH value of water after rinsing is 7, then, again described filter residue is heated to 105 ~ 120 DEG C, and keep 12 ~ 24h, obtain the active carbon that load has composite metal oxide presoma;
(7) described load there is is the active carbon of composite metal oxide presoma under the protection of inert gas, calcine 1 ~ 10 hour at 200 ~ 600 DEG C, obtain middle temperature carbon dioxide solid absorbent, put into dry without for subsequent use under the environment of carbon dioxide.
Preferably, described step (6) can repeat 1 ~ 3 time, to improve the load capacity of active carbon.
The another kind of method manufacturing middle temperature carbon dioxide solid absorbent mentioned above, is characterized in that comprising the following steps:
(1) with the mixed in molar ratio divalent metal salt of 3:1 and trivalent metal salt, described divalent metal salt is for being selected from Co (NO
3)
2, CoCl
2, CuCl
2, Cu (NO
3)
2, CuSO
4, Mg (NO
3)
2, MgCl
2in one; Described trivalent metal salt is for being selected from Al (NO
3)
3, AlCl
3, Fe (NO
3)
3, FeCl
3, Ce
2(SO
4)
3with Ce (NO
3)
3in one;
(2) by soluble in water for above-mentioned hybrid metal ion salt, the hybrid metal ion salt solution that concentration is 2 ~ 3mol/L is configured to;
(3) with the mixed in molar ratio solid sodium hydroxide of 5 ~ 8:1 and sodium carbonate, and the mixture of gained is dissolved in deionized water, makes the total concentration of NaOH and sodium carbonate in the solution of gained be 8 ~ 12mol/L;
(4) active carbon is added the solution of step (2) gained with the amount of 0.8 ~ 0.9g/mL, the hole of described active carbon is all infiltrated;
(5) by after the infiltration of step (4) gained
active carbonat 105 ~ 120 DEG C, heat 1 ~ 3h, and obtained sample is added the solution of step (3) with the amount of 0.8 ~ 0.9g/mL, the hole of described sample is all infiltrated;
(6) by the product of step (5) gained aging 12 ~ 24h at 60 ~ 80 DEG C;
(7) with the product of deionized water rinsing step (6) gained, until the pH value of water after rinsing is 7, then described product is heated 12 ~ 24h at 105 ~ 120 DEG C;
(8) by the product of step (7) gained under the protection of inert gas, calcine 1 ~ 10 hour at 200 ~ 600 DEG C, obtain middle temperature carbon dioxide solid absorbent, put into dry without for subsequent use under carbon dioxide environment.
Beneficial effect: the present invention the method for composite metal oxide simple possible is loaded to there is certain mechanical strength active carbon on, avoid the problem of granulation and efflorescence aspect, combine active carbon and the advantage of composite metal oxide in absorbent properties, CO simultaneously
2uptake and reversible absorption amount large, meet the requirement to absorbent properties in industry.
Accompanying drawing explanation
fig. 1for the CO of the absorbent of embodiments of the invention and prior art
2uptake contrasts;
fig. 2for existing
active carbonthe CO of absorbent
2circulation/absorbent properties test result
figure;
fig. 3for the CO of embodiments of the invention
2circulation/absorbent properties test result
figure.
Detailed description of the invention
Below by specific embodiment, the present invention is further detailed.In following embodiment, the Mg (NO used
3)
2be preferably 99% magnesium nitrate hexahydrate that lark prestige Science and Technology Ltd. produces; The cobalt chloride used is preferably the CoCL2 6H2O that Guangzhou Chemical Reagent Factory is produced; 98.5% NaOH that the NaOH used produces for lark prestige Science and Technology Ltd.; The Na used
2cO
3for 99.5% sodium carbonate that lark prestige Science and Technology Ltd. produces; Described copper sulphate is 99% anhydrous cupric sulfate that lark prestige Science and Technology Ltd. produces; The FeCl used
3for the ferric chloride (FeCl36H2O) crystal that Guangzhou Chemical Reagent Factory is produced; The Al used
2(NO
3)
3nine water produced for lark prestige Science and Technology Ltd. and aluminum nitrate (>=98%); Described cerous sulfate is preferably the 99% 8 water cerous sulfate that lark prestige Science and Technology Ltd. produces; Calcining step carries out in Muffle furnace, and Muffle furnace is the ceramic fibre chamber type electric resistance furnace FR-1236A that Shanghai Fa Rui Instrument Ltd. produces.Except above-mentioned enumerating, those skilled in the art select according to routine, other also can be selected to have product that the said goods enumerated to the present invention has similar performance, all can realize object of the present invention.
Unless otherwise noted, the percentage in context is percetage by weight.
Embodiment 1
(1) take a certain amount of magnesium nitrate hexahydrate and nine water aluminum nitrates are dissolved in deionized water, be configured to hybrid metal ion salt solution, in this solution, the concentration of magnesium nitrate is 2.25mol/L, and the concentration of aluminum nitrate is 0.75mol/L;
(2) urea is added above-mentioned solution, make urea concentration in this solution be 1.0mol/L;
(3) by 5g business cocoanut active charcoal (granularity: 4-20 order, specific area: 433m
2/ g) add the above-mentioned solution of 10mL, agitating solution 1h;
(4) mixture of filtration step (3) gained, heats 12h by the filter residue of gained at 120 DEG C;
(5) with the product of deionized water rinsing step (4) gained, until the pH of water after rinsing is 7, again sample is heated to 120 DEG C, and keeps 24h, obtain the active carbon that load has Al-Mg composite metal oxide presoma;
(6) repeat above-mentioned steps 3 times, improve the load capacity of active carbon;
(7) by the product of step (6) gained under the protection of He, calcine 1 hour at 600 DEG C, obtain absorbent charcoal based Al-Mg composite metal oxide absorbent, put into dry without for subsequent use under carbon dioxide environment.
Use ESEM+energy spectrum analysis (SEM+EDX) to measure the metallic element relative amount of sample surfaces load in the absorbent charcoal based Al-Mg composite metal oxide absorbent of gained, then obtained the load capacity of composite metal oxide by the content inverse of metallic element on the surface.According to measurement result, comprise by weight percentage in the absorbent of gained: composite metal oxide: 5wt%, active carbon: 95wt%.
Embodiment 2
(1) take a certain amount of CoCL2 6H2O and ferric chloride (FeCl36H2O) is dissolved in deionized water, be configured to hybrid metal ion salt solution, this Chlorine in Solution cobalt concentration is 1.58mol/L, and ferric chloride concn is 0.53mol/L;
(2) urea is added above-mentioned solution, make urea concentration in this solution be 1.05mol/L;
(3) by 1g business coal mass active carbon (granularity: 4-20 order, specific area: 946m
2/ g) add the above-mentioned solution of 10mL, agitating solution 3h;
(4) mixture of filtration step (3) gained, heats 24h by the filter residue of gained at 105 DEG C;
(5) with the product of deionized water rinsing step (4) gained, until the pH of water after rinsing is 7, again sample is heated to 105 DEG C, and keeps 12h, obtain the active carbon that load has ferro-cobalt composite metal oxide presoma;
(6) by the product of step (5) gained under the protection of Ar atmosphere, calcine 10 hours at 200 DEG C, obtain absorbent charcoal based ferro-cobalt composite metal oxide absorbent, put into dry without for subsequent use under carbon dioxide environment.
Use ESEM+energy spectrum analysis (SEM+EDX) to measure the metallic element relative amount of sample surfaces load in the absorbent charcoal based ferro-cobalt composite metal oxide absorbent of gained, then obtained the load capacity of composite metal oxide by the content inverse of metallic element on the surface.According to measurement result, comprise by weight percentage in the absorbent of gained: composite metal oxide: 30wt%, active carbon: 70wt%.
Embodiment 3
(1) take a certain amount of magnesium nitrate hexahydrate and nine water aluminum nitrates are dissolved in deionized water, be configured to hybrid metal ion salt solution (solution A), in this solution, magnesium nitrate concentration is 2.1mol/L, and aluminum nitrate concentration is 0.7mol/L;
(2) take a certain amount of NaOH and sodium carbonate is dissolved in deionized water, make the naoh concentration of gained solution (solution B) be 8.3mol/L, concentration of sodium carbonate is 1.4mol/L;
(3) by 2g business cocoanut active charcoal (granularity: 4-20 order, specific area: 433m
2/ g) add 2.4mL solution A, active carbon hole is all infiltrated;
(4) mixture of step (3) gained is heated 3h at 105 DEG C, and added 2.4mL solution B, ensure that sample hole all infiltrates;
(5) by after the infiltration of step (4) gained
active carbonaging 24h at 60 DEG C;
(6) with the product of deionized water rinsing step (5) gained, until the pH value of water after rinsing is 7, then described product is heated 24h at 105 DEG C;
(7) by the product of step (6) gained at N
2under atmosphere protection, calcine 2 hours at 500 DEG C, obtain absorbent charcoal based Al-Mg composite metal oxide absorbent, put into dry without for subsequent use under carbon dioxide environment.
Use ESEM+energy spectrum analysis (SEM+EDX) to measure the metallic element relative amount of sample surfaces load in the absorbent charcoal based Al-Mg composite metal oxide absorbent of gained, then obtained the load capacity of composite metal oxide by the content inverse of metallic element on the surface.According to measurement result, comprise by weight percentage in the absorbent of gained: composite metal oxide: 16wt%, active carbon: 84wt%.
Embodiment 4
(1) take a certain amount of cupric sulfate pentahydrate and eight water cerous sulfates are dissolved in deionized water, be configured to hybrid metal ion salt solution (solution A), in this solution, concentration of copper sulfate is 1.05mol/L, and cerous sulfate concentration is 0.35mol/L;
(2) take a certain amount of NaOH and sodium carbonate is dissolved in deionized water, make the naoh concentration of gained solution (solution B) be 6.9mol/L, concentration of sodium carbonate is 1.1mol/L;
(3) by 2g business cocoanut active charcoal (granularity: 4-20 order, specific area: 433m
2/ g) add 2.4mL solution A, active carbon hole is all infiltrated;
(4) mixture of step (3) gained is heated 3h at 105 DEG C, and added 2.4mL solution B, ensure that sample hole all infiltrates;
(5) by after the infiltration of step (4) gained
active carbonaging 24h at 80 DEG C;
(6) with the product of deionized water rinsing step (5) gained, until the pH value of water after rinsing is 7, then described product is heated 24h at 105 DEG C;
(7) by the product of step (6) gained under He atmosphere protection, calcine 1 hour at 550 DEG C, obtain absorbent charcoal based copper cerium composite metal oxide absorbent, put into dry without for subsequent use under carbon dioxide environment.
Use ESEM+energy spectrum analysis (SEM+EDX) to measure the metallic element relative amount of sample surfaces load in the absorbent charcoal based Al-Mg composite metal oxide absorbent of gained, then obtained the load capacity of composite metal oxide by the content inverse of metallic element on the surface.According to measurement result, comprise by weight percentage in the absorbent of gained: composite metal oxide: 23wt%, active carbon: 77wt%.
Use method known in the field, tested by carbon dioxide ordinary-pressure absorption, detect embodiment 1 and the carbon dioxide absorption amount of absorbent of embodiment 3 and the absorption/desorption cycle performance of the absorbent of embodiment 3.Experimental temperature is 200 DEG C, and pressure is 1atm, and stripping gas is nitrogen; In the experiment of absorption/cycle performance, warm CO in the business cocoanut active charcoal used
2the quality of absorbent is 11.05g, and the quality of the absorbent of the embodiment 3 used is 15.61g.By the carbon dioxide absorption amount result of gained and existing
active carbonabsorbent is compared with composite metal oxide absorbent, result
as Fig. 1shown in.From
fig. 1can find out, the absorbent manufactured by embodiments of the invention 1 and 3 is all better than single cocoanut active charcoal and composite metal oxide in uptake and absorption dynamics.Visible in addition, absorbent (embodiment 3) performance using coprecipitation to prepare is better than absorbent (embodiment 1) prepared by urea method.By experiment, warm CO in business cocoanut active charcoal is measured
2the reversible absorption amount of absorbent is 0.068mmol/g, and the reversible absorption amount of the absorbent of embodiment 3 is 0.127mmol/g, and reversible absorption amount is 2 times of active carbon.By
fig. 2with
fig. 3visible, the absorbent of embodiment 3 substantially can reach absorption and desorption and balance by the 3rd circulation.
Claims (6)
1. a warm carbon dioxide solid absorbent in, is characterized in that: be made up of the active carbon of 5 ~ 30wt% and the composite metal oxide of 70 ~ 95wt%, and described composite metal oxide load is at activated carbon surface; Described composite metal oxide comprises metallic element that a kind of chemical valence is divalence and a kind of chemical valence is the metallic element of trivalent.
2. middle temperature carbon dioxide solid absorbent according to claim 1, is characterized in that: described chemical valence is the metallic element of divalence is Co, Cu or Mg, and described chemical valence is the metallic element of trivalent is Al, Fe, Ga, Cr or Ce.
3. middle temperature carbon dioxide solid absorbent according to claim 2, is characterized in that: the specific area of described active carbon is 400 ~ 1800m
2/ g, granularity is 4 ~ 20 orders.
4. a method for the middle temperature carbon dioxide solid absorbent described in manufacturing claims 1 ~ 3, is characterized in that comprising the following steps: S1: with the mixed in molar ratio divalent metal salt of 3:1 and trivalent metal salt, and described divalent metal salt is for being selected from Co (NO
3)
2, CoCl
2, CuCl
2, Cu (NO
3)
2, CuSO
4, Mg (NO
3)
2, MgCl
2in one; Described trivalent metal salt is for being selected from Al (NO
3)
3, AlCl
3, Fe (NO
3)
3, FeCl
3, Ce
2(SO
4)
3with Ce (NO
3)
3in one;
S2: by soluble in water for above-mentioned hybrid metal ion salt, is configured to the hybrid metal ion salt solution that concentration is 2 ~ 3mol/L;
S3: urea is added described hybrid metal ion salt solution, makes the urea concentration in the solution of gained be 1 ~ 1.5mol/L;
S4: solution active carbon being added step S3 gained with the amount of 0.1 ~ 0.5g/mL, stirs 1 ~ 3h;
The mixture of S5: filtration step S4 gained, heats 12 ~ 24h by the filter residue of gained at 105 ~ 120 DEG C;
S6: with the filter residue of deionized water rinsing step S5 gained, until the pH value of water after rinsing is 7, then, is again heated to 105 ~ 120 DEG C by described filter residue, and keeps 12 ~ 24h, obtain the active carbon that load has composite metal oxide presoma;
S7: described load is had the active carbon of composite metal oxide presoma under the protection of inert gas, calcines 1 ~ 10 hour, obtains middle temperature carbon dioxide solid absorbent at 200 ~ 600 DEG C, puts into dry without for subsequent use under the environment of carbon dioxide.
5. the method for warm carbon dioxide solid absorbent in manufacture according to claim 4, is characterized in that: described step S6 can repeat 1 ~ 3 time, to improve the load capacity of active carbon.
6. a method for the middle temperature carbon dioxide solid absorbent described in manufacturing claims 1 ~ 3, is characterized in that comprising the following steps:
S1: with the mixed in molar ratio divalent metal salt of 3:1 and trivalent metal salt, described divalent metal salt is for being selected from Co (NO
3)
2, CoCl
2, CuCl
2, Cu (NO
3)
2, CuSO
4, Mg (NO
3)
2, MgCl
2in one; Described trivalent metal salt is for being selected from Al (NO
3)
3, AlCl
3, Fe (NO
3)
3, FeCl
3, Ce
2(SO
4)
3with Ce (NO
3)
3in one;
S2: by soluble in water for above-mentioned hybrid metal ion salt, is configured to the hybrid metal ion salt solution that concentration is 2 ~ 3mol/L;
S3: with the mixed in molar ratio solid sodium hydroxide of 5 ~ 8:1 and sodium carbonate, and be dissolved in deionized water by the mixture of gained, makes the total concentration of NaOH and sodium carbonate in the solution of gained be 8 ~ 12mol/L;
S4: solution active carbon being added step S2 gained with the amount of 0.8 ~ 0.9g/mL, makes the hole of described active carbon all infiltrate;
S5: the activated carbon after the infiltration of step S4 gained is heated 1 ~ 3h at 105 ~ 120 DEG C, and obtained sample is added the solution of step S3 with the amount of 0.8 ~ 0.9g/mL, makes the hole of described sample all infiltrate;
S6: by the product of step S5 gained aging 12 ~ 24h at 60 ~ 80 DEG C;
S7: with the product of deionized water rinsing step S6 gained, until the pH value of water after rinsing is 7, then heats 12 ~ 24h by described product at 105 ~ 120 DEG C;
S8: by the product of step S7 gained under the protection of inert gas, calcines 1 ~ 10 hour, obtains middle temperature carbon dioxide solid absorbent at 200 ~ 600 DEG C, puts into dry without for subsequent use under carbon dioxide environment.
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ID=55187759
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| CN107934960A (en) * | 2017-11-24 | 2018-04-20 | 宁夏浦士达环保科技有限公司 | The preparation process of civil air defense constructions and installations activated carbon |
| CN108262016A (en) * | 2018-03-23 | 2018-07-10 | 宁波大学 | A kind of method of slag adsorbing and removing carbon dioxide in gas |
| CN112657478A (en) * | 2020-12-17 | 2021-04-16 | 国网陕西省电力公司电力科学研究院 | Ce modified carbon dioxide adsorbing material in closed semi-closed space and preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107934960A (en) * | 2017-11-24 | 2018-04-20 | 宁夏浦士达环保科技有限公司 | The preparation process of civil air defense constructions and installations activated carbon |
| CN107934960B (en) * | 2017-11-24 | 2021-02-19 | 宁夏浦士达环保科技有限公司 | Preparation process of activated carbon for civil air defense engineering |
| CN108262016A (en) * | 2018-03-23 | 2018-07-10 | 宁波大学 | A kind of method of slag adsorbing and removing carbon dioxide in gas |
| CN112657478A (en) * | 2020-12-17 | 2021-04-16 | 国网陕西省电力公司电力科学研究院 | Ce modified carbon dioxide adsorbing material in closed semi-closed space and preparation method and application thereof |
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