CN101822929A - Method for capturing carbon dioxide by utilizing electrical desorption technology - Google Patents

Method for capturing carbon dioxide by utilizing electrical desorption technology Download PDF

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CN101822929A
CN101822929A CN201010104442A CN201010104442A CN101822929A CN 101822929 A CN101822929 A CN 101822929A CN 201010104442 A CN201010104442 A CN 201010104442A CN 201010104442 A CN201010104442 A CN 201010104442A CN 101822929 A CN101822929 A CN 101822929A
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gas
carbon dioxide
adsorbent
temperature
electrical
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CN101822929B (en
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李平
于建国
梁辉
刘振
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East China University of Science and Technology
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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
    • 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

Abstract

The invention relates to a method for capturing carbon dioxide by utilizing an electrical desorption technology, which is a method for capturing the carbon dioxide as greenhouse gas through multi-tower type cyclic adsorption and electrical desorption technologies, and comprises the following steps: a. under the conditions that the temperature is 10 to 50 DEG C and the pressure is 1.1 to 5.0atm, capturing flue gas and the carbon dioxide in industrial tail gas by adopting an adsorbent with low pressure drop and good electricity and heat conducting performance; and b. under the condition of electrically heating the adsorbent to the temperature of 100 to 200 DEG C, desorbing the adsorbent in the step a, cooling the carbon dioxide-contained gas obtained through desorption and enabling the gas to enter a gas collector. The invention has the advantages that the adsorbent is electrically heated, thereby the temperature-rising speed is high, and the utilization ratio of electrical energy is higher; and the adsorbents with smaller pressure drop and high gas processing quantity are selected to be built into an adsorbent bed with the height of 10 meters or higher, thereby the temperature-reducing time period is shortened, the energy consumption for capturing the carbon dioxide is reduced, and the cost of capture and post processing is lowered.

Description

A kind of method of utilizing the electrical desorption technology capturing carbon dioxide
[technical field]
The present invention relates to the technical field of greenhouse gases carbon dioxide discharge-reduction, specifically, is a kind of method of utilizing the electrical desorption technology high efficiency to capture carbon dioxide in flue gas and the industrial tail gas.
[background technology]
In recent years, the climate warming that greenhouse effects cause has become the great environmental problem of global common concern, more and more causes the attention of countries in the world.CO 2Be most important artificial greenhouse gases, be mainly derived from the flue gas of combustion of fossil fuels discharges such as power plant, cement plant, steel plant.Yet regenerative resource owing to be in the research and development stage, can not satisfy the needs that the energy increases as wind energy, water energy, biomass energy etc., and fossil fuel will continue a large amount of the use, to satisfy the needs of global energy.Therefore, in order to slow down greenhouse effects, need adopt an effective measure prevents CO 2Be discharged in the atmosphere.
At present, an effective way of minimizing atmospheric carbon dioxide levels is CO 2Capture and seal up for safekeeping.The CO that emits at combustion of fossil fuel 2, the trapping technique route mainly contains three kinds: capturing before the burning, burn, the back captures, oxygen-enriched combusting captures.In these years, a lot of capture separation of C O have been developed 2Technology, as the absorption and separation method, membrane separation process, low temperature distillation method, adsorption method of separation etc.MEA absorption process and membrane separation process capture one ton of CO at present 2Be respectively 49 dollars, 53 dollars, the capture cost is higher relatively.In order to reduce CO 2The capture cost, people have had keen interest to adsorption separation technology gradually, and find that it has very big research space.At present about CO 2The research report of sorbing material is a lot, and relevant research is applicable to normal temperature CO 2The material such as natural zeolite, molecular sieve, silica gel and active carbon of absorption and be applicable to high temperature CO 2The materials such as hydrotalcite, metal oxide, lithium salts and calcium oxide of absorption; The technology of adsorbing and trapping has Vacuum Pressure Swing Adsorption, transformation absorption, alternating temperature absorption and pressure and temperature varying coupling adsorbing and trapping technology.But adsorbing and trapping CO 2The cost of technology and energy consumption remain higher.
In recent years, reported in the document that a kind of quick adsorbent takes off suction (electrolysis suction) regeneration techniques, it is to utilize some adsorbents to have certain electric conductivity, adopts directly energising or electromagnetically induced to provide the mode of heat to quicken CO 2Desorption, it is actually a kind of alternating temperature adsorption technology of novelty.Because directly to the adsorbent heating, programming rate is very fast, has reduced the loss of heat on pipeline and auxiliary equipment, capacity usage ratio is than high with steam or inert gas heating indirectly.Different with steam and high temperature heat-carrying gas thermal regeneration, directly the energising heating can not introduced water, other gas in system, has improved the purity of product gas.During adsorbent reactivation, also simple to the requirement of equipment than conventional art to the requirement of equipment.But the research is at the early-stage, still need improve the electrical and thermal conductivity performance of sorbent material, solves the matching problem of adsorbent and equipment, optimizes process conditions, reduces the electric energy consumption that technology is inhaled in electrolysis.
Given this, this area presses for the method for carbon dioxide in a kind of new and effective capture flue gas and the industrial tail gas, overcomes the CO that exists in the prior art 2Adsorbing and trapping cost and energy consumption are higher, and (CO under the higher recovery 2＞80%) CO that is captured 2Defectives such as post processing (pressurization is sealed up for safekeeping) the cost rising that purity not high (being less than or equal to 75v/v%) causes.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art, a kind of method that captures carbon dioxide in flue gas and the industrial tail gas is provided.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method of utilizing the electrical desorption technology capturing carbon dioxide, it captures the method for carbon dioxide in flue gas and the industrial tail gas for multi-tower type circulation absorption and electrical desorption technology.
One of method is to adopt multitower (Ru Santa) to inhale operating procedure through six circulation absorption and electrolysis, captures carbon dioxide in flue gas and the industrial tail gas continuously; This trapping technique is applicable to the electrical and thermal conductivity performance good adsorption material of different-shape, as graininess, fibrous, cellular carbon-based material and compound CO absorption 2Material etc.;
Concrete steps are: each circulation comprises that absorption, flushing displacement, electrical heating, product air-blowing are swept, displacement gas purges, six steps of cooling; Its concrete steps are:
Step (1) absorption: in temperature is that 10 ℃～50 ℃, pressure are under 1.1atm～5atm condition, carbon dioxide in adsorbing and trapping flue gas and the industrial tail gas;
Step (2) flushing displacement: adopt a small amount of high CO 2The gas of concentration is obtained by another tower step (5), forward flows through adsorbent bed, weak absorbed component nitrogen in the displacement bed;
Step (3) electrical heating: energising adds heat-adsorbent, makes the interior adsorbent temperature of absorber rise to 100 ℃～200 ℃; The CO that heating desorption goes out 2Gas enters the product gas tank and reclaims after cooling;
(1) is swept in step (4) product air-blowing: the carbon dioxide that retains in the reverse product air-blowing eroding river bed, separate the CO of sucking-off 2Gas enters the product gas tank and reclaims after cooling;
Step (5) displacement gas purges (2): in the reverse purging bed of the displacement gas that adopts another tower step (2) to obtain, reclaim the carbon dioxide that retains, separate the CO of sucking-off 2Gas enters the displacement gas tank, the CO of these enrichments again after cooling 2Gaseous mixture is imported another tower step (2) flushing displacement, the high CO that part is involved again 2The gas of concentration enters the product gas tank and reclaims;
Step (6) cooling: flow out low temperature exhaust gas forward directly by the adsorption tower step (5) after another regeneration by another adsorption tower that carries out step (1) adsorbing and trapping, adsorbent in the direct cooling tower, when temperature dropped to specified temp in the bed, shut-down operation was recycled to next operating procedure (1).
Two methods of method for carbon dioxide in electrical desorption technology capture flue gas and the industrial tail gas, its concrete steps are:
(a) be 10 ℃～50 ℃ in temperature, pressure is under 1.1atm～5.0atm condition, adopts carbon dioxide in existing electrical and thermal conductivity performance good adsorbent absorption flue gas and the industrial tail gas;
Described adsorbent is selected from: pattern is that graininess, fibrous, cellular carbon-based material and other have the compound CO absorption of electrical and thermal conductivity performance 2In the material one or two or more kinds;
(b) under electrical heating adsorbent to temperature is 100 ℃～200 ℃ condition, the adsorbent in the step (a) is carried out desorb, the carbon dioxide containing gas of desorb gained enters gas collector after cooling.
Described electrical heating adsorbent to temperature is 150 ℃～200 ℃;
Wherein: select for use pressure to fall that less adsorbent is whole to be built into higher adsorbent bed, make the absorber bottom divide adsorbing and trapping CO 2, tail gas continues the higher adsorbent of cooling bed interior regeneration back temperature by the adsorbent bed top, shortens the temperature fall time section, increases productivity.
The content of carbon dioxide is 3v/v%～30v/v% in the described flue gas (from the flue of power plant, steel mill and cement plant discharging), and the content of nitrogen is about 65v/v%～95v/v%, and surplus is sulfur dioxide (SO 2) gas, nitrogen oxygen (NOx) gas, water vapour etc.;
Electric heating comprises that direct current and alternating current directly heat adsorbent in the adsorbent bed, in adsorbent bed two ends energising heating up and down, and in the energising heating of adsorbent bed both sides.
Compared with prior art, good effect of the present invention is:
Adopt the low pressure drop sorbing material, as cellular adsorbent, whole pattern comprises square, cuboid and Cylinder, about 100～500 millimeters of length, width, average diameter, channel diameter is about 1 millimeter, about 1 millimeter of the thickness of network skeleton material, adsorption tower is by low pressure drop, electrical and thermal conductivity performance good adsorption CO 2Material is whole to be built, and doses conductive fiber between every layer, solves the coupling of interlayer, improves electrical heating efficiency.
Compare with traditional temperature swing adsorption process, the present invention adds electrical heating method, adopts the electrical heating sorbing material, and programming rate is very fast, can make adsorbent reach the purpose of fast desorption regeneration; And electricity directly is heated to adsorbent, and utilization rate of electrical is higher; Improve the sorbing material CO absorption by methods such as surface modifications 2Capacity, electrolysis are inhaled technology at CO 2Has significant advantage in the adsorbing and trapping technology.
At the long weakness that can reduce production capacity of absorber temperature fall time, the present invention shortens the effective temperature fall time section of adsorbent.Adopt pressure to fall the whole block of lower sorbing material (as cellular adsorbent) 10 meters or higher adsorbent bed, when carrying out step (1) adsorbing and trapping, the absorption of adsorbent bed bottom, adsorbent bed top low temperature exhaust gas continue the cooling adsorbent, can shorten the temperature fall time section of step (6).When the sorbing material heat conductivility is good, can or use the cooling operation of step (6) less.
Adopt cold burden to enter adsorption tower absorption, cooling forward's adsorption bed in the time of absorption keeps the adsorbing and trapping rate, about 20 ℃ or lower slightly again of the temperature of cold burden; The low-temperature receiver of cooling charging can utilize and compress low-grade cold of sealing up for safekeeping in the technology, reduces the energy consumption of whole technology.
In addition, adopt more than the purity 90v/v% of the available carbon dioxide of capturing carbon dioxide method of the present invention, do not need further to carry dense, can directly be compressed to 100 atmospheric pressure, condensation liquefaction, discharging fixed gas after, seal up for safekeeping, reduce the cost of the post processing of capturing carbon dioxide.
[description of drawings]
The design drawing of one section of Fig. 1 and the electrically heated electric desorber of multistage;
Fig. 2 the circulate absorption and the block diagram of electrical desorption technology capturing carbon dioxide;
Fig. 3 three towers circulate the continuously absorption and the process chart of electrical desorption technology capturing carbon dioxide.
[specific embodiment]
The present invention below is provided a kind of specific embodiment of utilizing the method for electrical desorption technology capturing carbon dioxide.
Below provide the present invention's a kind of multi-tower type circulation absorption and electrolysis to inhale the method that concentrates carbon dioxide, being embodied in working pressure, to fall whole being built into of less, electrical and thermal conductivity performance good adsorption material highly be 10 meters or higher adsorbent bed, adopt a plurality of adsorption towers (Ru Santa) to inhale operating procedure, capture carbon dioxide in flue gas and the industrial tail gas continuously through six circulation absorption and electrolysis.Seeing also accompanying drawing 1,2 and 3, six circulation absorption and electrolysis, to inhale operating procedure specific as follows:
Step (1) absorption:
In temperature is that 10 ℃～50 ℃, pressure are under 1.1atm～5atm condition, carbon dioxide in adsorbing and trapping flue gas and the industrial tail gas, its CO 2Concentration is at 3v/v%～30v/v%; This operating procedure is introduction of use CO also 2Subsequent compression is sealed the further cooled feed gas body of the low-grade cold that waits other technology up for safekeeping.Adopt cold burden to adsorb, improve adsorbing and trapping CO 2Can also cool off adsorbent in forward's adsorbent bed in the time of ability, shorten the middle adsorbent of step (6) and lower the temperature cool time, increase productivity;
Described adsorbent is selected from has electrical and thermal conductivity performance good adsorption material, comprises carbon back sorbing material and composite adsorbing material; The pattern of sorbing material comprises graininess, fibrous and cellular;
Step (2) flushing displacement: adopt a small amount of high CO 2The gas of concentration is obtained by another tower step (5), forward flows through adsorbent bed, and weak absorbed component nitrogen in the displacement bed is to improve CO in the product gas that step (3) desorb obtains 2Purity;
Step (3) electrical heating: energising adds heat-adsorbent, makes the interior adsorbent temperature of absorber rise to 100 ℃～200 ℃; The CO that heating desorption goes out 2Gas enters the product gas tank and reclaims after cooling;
(1) is swept in step (4) product air-blowing: the carbon dioxide that retains in the reverse product air-blowing eroding river bed, separate the CO of sucking-off 2Gas enters the product gas tank and reclaims after cooling; This purge gas also can comprise other carrier gas such as nitrogen, but used in amounts will be controlled CO in the product gas that guarantees finally to obtain 2Purity.
Step (5) displacement gas purges (2): the reverse purging adsorbent bed of displacement gas that adopts another tower step (2) to obtain, reclaim the carbon dioxide that retains, and separate the CO of sucking-off 2Gas enters the displacement gas tank, the CO of these enrichments again after cooling 2Gaseous mixture is recycled to weak absorbed component nitrogen in another tower step (2) displacement tower, the high CO of part accumulation 2The gas of concentration enters the product gas tank and reclaims
Step (6) cooling: flow out low temperature exhaust gas forward directly by the adsorption tower step (6) after the regeneration by another packed bed that carries out step (1) adsorbing and trapping, adsorbent in the direct cooling tower, when temperature drops to specified temp in the bed, shut-down operation, be recycled to next operating procedure (1), continue to cool.Require step (1) to adopt cold burden to adsorb, in the time of raising adsorbing and trapping efficient, also continue cooling adsorbent bed inside forward's adsorbent simultaneously, the control operation condition, adsorption capacity can not descend when guaranteeing effectively to cool off adsorbent.
Whole circulation absorption and electrolysis are inhaled and are captured in the technology, are that 10 ℃～50 ℃, pressure are under 1.1atm～5atm condition in temperature, carbon dioxide in adsorbing and trapping flue gas and the industrial tail gas, its CO 2Concentration is embodied in step (1) at 3v/v%～30v/v%; Adopt direct current or alternating current to add heat-adsorbent to temperature and carry out the adsorbent desorb for 100 ℃～200 ℃, be embodied in the step (3); Feeding refrigerating gas directly cools off in the present step of sorbent body (1), (6); Utilize follow-up CO 2The cold of compression section is embodied in step (1), (6).
The continuous adsorption capturing carbon dioxide need adopt a plurality of adsorption tower parallel work-flows, and Fig. 3 shows that a typical case three towers six steps capture CO continuously 2Operating process, each valve function and mode of operation are as shown in table 1; Six operating procedures of each circulation are divided into three equal time periods, (1) adsorption time section, and (2) flushing displacement, electrical heating and purging (1) time period, (3) purge (2) and temperature fall time section.Traditional temperature swing adsorption process temperature fall time is longer, and in fact the present invention adopts two temperature-fall periods (step (6) and step (1)).The adsorption time section also is another temperature fall time section in this technological design, but in the adsorption time section, needs optimal design to guarantee that the absorption forward should be slower than the heat wave peak and could improve cooling efficient.
The mode of operation of three towers is as shown in table 2, and adsorption tower 1 adsorbs, and adsorption tower 2 purges (2) and directly cools, and adsorption tower 3 washes displacement, electrical heating and product air-blowing and sweeps (1); Sequencing valve is controlled automatically, and next time period, adsorption tower 1 washes displacement, electrical heating and product air-blowing and sweeps (1), and adsorption tower 2 adsorbs, and adsorption tower 3 purges (2) and directly cools; Sequencing valve is regulated automatically again, and at this moment, adsorption tower 1 purges (2) and directly cools, and adsorption tower 2 washes displacement, electrical heating and product air-blowing and sweeps (1), and adsorption tower 3 adsorbs.By the automatic adjusting of sequencing valve, each adsorption tower will repeat aforesaid operations, and this technology can guarantee the continuous adsorption capturing carbon dioxide.
Table 1 three towers circulation absorption and electrical desorption technology capture CO 2Technological process in from the control regulation valve function declaration
101,201,301 valves open 102,202, and 302 valves open 103,203, and 303 valves open 104,204, and 304 valves open 105,205, and 305 valves open 106,206, and 306 valves open 107,207, and 307 valves open 108,208, and 308 valves are opened Import direct refrigerating gas input feed gas input flushing substitution gas output heating, purge tail gas output flushing displacement tail gas behind the product gas output adsorbing and trapping that (1) desorb obtains, input flushing displacement tail gas purges the air-blowing of (2) input product and sweeps (1) output back tail gas that cools
 
 
Each tower mode of operation in the technological process that captures CO2 is inhaled in table 2 three towers circulation absorption and electrolysis
Figure GSA00000020450500081
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.

Claims (8)

1. a method of utilizing the electrical desorption technology capturing carbon dioxide is characterized in that, captures the method for carbon dioxide in flue gas and the industrial tail gas for multi-tower type circulation absorption and electrical desorption technology.
2. a kind of method of utilizing the electrical desorption technology capturing carbon dioxide as claimed in claim 1, it is characterized in that, described multi-tower type circulation absorption captures the method for carbon dioxide in flue gas and the industrial tail gas, and its concrete steps are: each circulation comprises that absorption, flushing displacement, electrical heating, product air-blowing are swept, displacement gas purges, six steps of cooling; Its concrete steps are:
Step (1) absorption: in temperature is that 10 ℃～50 ℃, pressure are under 1.1atm～5atm condition, low concentration of carbon dioxide in adsorbing and trapping flue gas or the industrial tail gas;
Step (2) flushing displacement: adopt high CO 2The gas of concentration is obtained by another tower step (5), forward flows through adsorbent bed, weak absorbed component nitrogen in the displacement bed;
Step (3) electrical heating: energising adds heat-adsorbent, makes the interior adsorbent temperature of absorber rise to 100 ℃～200 ℃; The CO that heating desorption goes out 2Gas enters the product gas tank and reclaims after cooling;
(1) is swept in step (4) product air-blowing: the carbon dioxide that retains in the reverse product air-blowing eroding river bed, separate the CO of sucking-off 2Gas enters the product gas tank and reclaims after cooling;
Step (5) displacement gas purges (2): in the reverse purging bed of the displacement gas that adopts another tower step (2) to obtain, reclaim the carbon dioxide that retains, separate the CO of sucking-off 2Gas enters the displacement gas tank, the CO of these enrichments again after cooling 2Gaseous mixture is imported another tower step (2) again and is washed displacement, the high CO of part accumulation simultaneously 2Concentration gases enters the product gas tank and reclaims;
Step (6) cooling: flow out low temperature exhaust gas forward directly by the adsorption tower step (5) after another tower regeneration by another tower that carries out step (1) adsorbing and trapping, adsorbent in the direct cooling tower, when temperature dropped to specified temp in the bed, shut-down operation was recycled to next operating procedure (1).
3. a kind of method of utilizing the electrical desorption technology capturing carbon dioxide as claimed in claim 1 is characterized in that described electrical desorption technology captures the method for carbon dioxide in flue gas and the industrial tail gas, and its concrete steps are:
(a) be 10 ℃～50 ℃ in temperature, pressure is under 1.1atm～5.0atm condition, adopts low concentration of carbon dioxide in existing electrical and thermal conductivity performance good adsorbent absorption flue gas and the industrial tail gas;
Described adsorbent be pattern be graininess, fibrous, cellular carbon-based material with and have a compound CO absorption of electrical and thermal conductivity performance 2In the material one or two or more kinds;
(b) under electrical heating adsorbent to temperature is 100 ℃～200 ℃ condition, the adsorbent in the step (a) is carried out desorb, the carbon dioxide containing gas of desorb gained enters gas collector after cooling.
4. a kind of method of utilizing the electrical desorption technology capturing carbon dioxide as claimed in claim 3 is characterized in that, described electrical heating adsorbent to temperature is 150 ℃～200 ℃.
5. a kind of method of utilizing the electrical desorption technology capturing carbon dioxide as claimed in claim 3, it is characterized in that, described flue gas, for the content from carbon dioxide in the flue of power plant, steel mill and cement plant discharging is 3v/v%～30v/v%, the content of nitrogen is 65v/v%～95v/v%, and surplus is sulfur dioxide (SO 2) gas, nitrogen oxygen (NO x) gas, steam.
6. a kind of method of utilizing the electrical desorption technology capturing carbon dioxide as claimed in claim 3, it is characterized in that, described Electric heating comprises that direct current and alternating current directly heat adsorbent in the adsorbent bed, in adsorbent bed two ends energising heating up and down, and in the energising heating of adsorbent bed both sides.
7. a kind of method of utilizing the electrical desorption technology capturing carbon dioxide as claimed in claim 3, it is characterized in that, described adsorption tower highly reaches 10 meters or higher adsorber bed for adopting pressure to fall whole being built into of the adsorbent less, that the gas treatment amount is high, when carrying out step (1) adsorbing and trapping, the absorption of adsorbent bed bottom, adsorbent bed top low temperature exhaust gas continues the cooling adsorbent, shortens the temperature fall time section of step (6).When the sorbing material heat conductivility is good, need not or use the cooling operation of step (6) less.
8. a kind of method of utilizing the electrical desorption technology capturing carbon dioxide as claimed in claim 3, it is characterized in that, adopt cold burden to enter adsorption tower absorption, cooling forward's adsorption bed in the time of absorption, keep the adsorbing and trapping rate, about 20 ℃ or lower slightly again of the temperature of cold burden; The low-grade cold in the technology is sealed in the low-temperature receiver utilization compression of cooling charging up for safekeeping, reduces the energy consumption of whole technology.
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CN103055659B (en) * 2012-12-25 2015-08-19 国电新能源技术研究院 A kind of trapping carbon dioxide in flue gas system and method
CN105032113A (en) * 2015-06-24 2015-11-11 浙江大学 Process for capturing carbon dioxide in flue gas based on wet reclamation technology
CN113289580A (en) * 2021-05-28 2021-08-24 北京碧水源净水科技有限公司 Preparation method of heavy metal adsorption type carbon membrane filter element, product obtained by preparation method and application of product
CN113941217A (en) * 2021-10-20 2022-01-18 清华大学 Energy storage system and method for carbon dioxide capture and flexible peak regulation of coal-fired power station
CN114307535A (en) * 2022-02-09 2022-04-12 西安热工研究院有限公司 System and method for directly capturing carbon dioxide by continuous air

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