CN112717572A - Method and device for utilizing carbon dioxide resource in flue gas - Google Patents

Method and device for utilizing carbon dioxide resource in flue gas Download PDF

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Publication number
CN112717572A
CN112717572A CN202011573040.7A CN202011573040A CN112717572A CN 112717572 A CN112717572 A CN 112717572A CN 202011573040 A CN202011573040 A CN 202011573040A CN 112717572 A CN112717572 A CN 112717572A
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gas
carbon dioxide
box
air duct
flue gas
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CN202011573040.7A
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Chinese (zh)
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纳薇
冷彦宜
郑敏
高文桂
王�华
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • 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
    • B01D53/04—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 with stationary adsorbents
    • 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
    • B01D53/14—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 absorption
    • B01D53/1456—Removing acid components
    • B01D53/1481—Removing sulfur dioxide or sulfur trioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbone dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/01—Purifying the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/01—Purifying the fluid
    • F17C2265/012—Purifying the fluid by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/14—Gaseous waste or fumes

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention provides a method and a device for utilizing carbon dioxide resources in flue gas, and relates to the technical field of carbon dioxide resource utilization. The method and the device for utilizing the carbon dioxide resource in the flue gas comprise a filter box, a desulphurization pool, a combustion box, a gas storage cabinet, a drying box, a compression cabinet and a gas storage tank; the desulfurizing device comprises a filter box, a desulfurizing pool, a first air duct, a second air duct, a liquid discharge pipe, a third air duct and a combustion box, wherein the first air duct is connected between the filter box and the desulfurizing pool, the second air duct corresponds to the first air duct and is fixedly connected to the top of one side of the inner wall of the desulfurizing pool, the liquid discharge pipe is fixedly connected to the bottom of one side of the outer wall of the desulfurizing pool, the third air duct is fixedly connected to one side of the outer wall of the desulfurizing pool, which is far away from the first air duct. Through setting up simple flue gas carbon dioxide recycle mechanism, both can carry out high-quality recycle to the carbon dioxide in the flue gas to realize the maximize of carbon dioxide resource utilization efficiency and income, be worth wideling popularize.

Description

Method and device for utilizing carbon dioxide resource in flue gas
Technical Field
The invention relates to the technical field of carbon dioxide resource utilization, in particular to a method and a device for utilizing carbon dioxide resources in flue gas.
Background
Carbon dioxide is a colorless, tasteless and odorless gas at normal temperature, has slightly higher density than air, is commonly called dry ice, can absorb a large amount of heat during sublimation, and is used as a refrigerant, such as artificial rainfall, and is also commonly used for producing smog in dance beauty; carbon dioxide does not burn or support burning generally, and is gathered above after being heated and expanded, and is also commonly used as a fire extinguishing agent, the carbon dioxide emission amount of China is about 60 hundred million tons every year, wherein about 50 percent of the carbon dioxide emission amount comes from energy conversion departments including thermal power generation, and due to the structural characteristics of energy of China, coal, natural gas and the like still occupy the leading position of energy consumption for a long period of time, and the carbon dioxide emission amount is gradually increased; on the other hand, carbon dioxide is an important menstrual gas resource, has wide application in national economy and industrial and agricultural production and large market potential, so that the carbon dioxide in the flue gas of a power plant needs to be recycled to realize the purpose of recycling the carbon dioxide.
Carbon dioxide is a greenhouse gas and also a resource, coal in a thermal power plant can generate a large amount of flue gas containing carbon dioxide after combustion, but for the recovery of carbon dioxide in the flue gas, the structural design of the existing recovery and utilization device has certain defects, so that the purity of the recovered carbon dioxide is low, the utilization range of the carbon dioxide is small due to the too simple treatment mode, and the maximization of the utilization efficiency and the income cannot be realized The application range is wider in the fire fighting and stage rendering related fields.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method and a device for utilizing flue gas carbon dioxide resources, which solve the problems that the purity of the recovered carbon dioxide is low, the utilization range of the carbon dioxide is small due to too simple treatment mode, and the maximization of the utilization efficiency and the income cannot be realized due to the certain defects of the structural design of the conventional recycling device.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a device for utilizing carbon dioxide resources in flue gas comprises a filter box, a desulphurization pool, a combustion box, a gas storage cabinet, a drying box, a compression cabinet and a gas storage tank;
a first air duct is connected between the filter box and the desulphurization tank, a second air duct corresponding to the first air duct is fixedly connected to the top of one side of the inner wall of the desulphurization tank, a liquid discharge pipe is fixedly connected to the bottom of one side of the outer wall of the desulphurization tank, a third air duct is fixedly connected to one side of the outer wall of the desulphurization tank, which is far away from the first air duct, and one end of the third air duct, which is far away from the desulphurization tank, is fixedly connected with the combustion box;
the gas storage tank is characterized in that connecting pipes are fixedly connected among the combustion box, the gas storage tank, the drying box and the compression tank, and one end of a compression gas outlet of the compression tank is fixedly connected with a gas injection pipe corresponding to the gas storage tank.
Preferably, the filter box comprises a box body, an air inlet and an air outlet are respectively formed in the centers of two sides of the outer wall of the box body, and a filter screen, an adsorption screen and filter cotton are respectively installed in the center of the box body.
Preferably, the bottom of the center of the desulfurization pool is filled with the desulfurization solution, and the bottom end of the second gas guide pipe extends to the bottom of the desulfurization pool.
Preferably, the sulphur removal tank is arranged in a fully sealed structure.
Preferably, the burning box includes the base, the top fixedly connected with toughened glass cover of base, the burning platform is installed at the center at base top, the controller corresponding with the burning platform is installed at the center of base front end surface.
A method for utilizing carbon dioxide resources in flue gas comprises the following specific steps:
s1, flue gas generated by fossil fuel combustion in a thermal power plant is led into a filter box by using a special pipeline after waste heat utilization, a filter screen, an adsorption net and filter cotton are respectively arranged in the filter box, and the filter screen, the adsorption net and the filter cotton can adsorb and filter smoke dust, impurities and a small amount of oxynitride in the flue gas;
s2, enabling the filtered flue gas to enter a desulfurization tank through a first gas guide pipe and a second gas guide pipe, filling desulfurization liquid into the bottom of the center of the desulfurization tank, and enabling the desulfurization liquid in the desulfurization tank to chemically react with sulfur dioxide entering the gas so as to complete adsorption of the sulfur dioxide in the gas;
s3, leading the desulfurized gas into a combustion box through a third gas guide pipe, wherein a combustion table is arranged at the center of the top of a base of the combustion box, part of the carbon monoxide gas which is not fully combusted can be remained in the led-in gas, the carbon monoxide gas which enters a toughened glass cover can be combusted under the ignition of an ignition mechanism of the combustion table, water and carbon dioxide can be generated after the combustion, and only carbon dioxide is remained in the gas after the full combustion;
s4, a large amount of carbon dioxide can be many and get into gas storage cabinet, drying cabinet and compression cabinet in proper order through the connecting pipe, and the carbon dioxide after purifying can be purified, dried and compressed in proper order, finally compresses the storage by injecting into the gas holder by the gas injection pipe to accomplish whole collection and utilization process.
(III) advantageous effects
The invention provides a method and a device for utilizing carbon dioxide resources in flue gas. The method has the following beneficial effects:
1. the method and the device for utilizing the carbon dioxide resource in the flue gas have the advantages that through the simple designed collection and utilization equipment and method, the operation is convenient, and meanwhile, various harmful substances in the flue gas can be separated layer by layer, so that the carbon dioxide with higher purity is obtained, and the integral working efficiency is greatly improved.
2. According to the method and the device for utilizing the carbon dioxide resource in the flue gas, the carbon dioxide in the flue gas can be recycled at high quality by arranging the simple flue gas carbon dioxide recycling mechanism, so that the maximization of the utilization efficiency and the income of the carbon dioxide resource is realized, and the method and the device are worthy of great popularization.
Drawings
FIG. 1 is a schematic structural diagram of a flue gas carbon dioxide resource utilization device according to the present invention;
FIG. 2 is a cross-sectional structural view of a filter box of the flue gas carbon dioxide resource utilization device of the present invention;
FIG. 3 is a sectional view of the combustion box of the flue gas carbon dioxide resource utilization apparatus of the present invention.
Wherein, 1, a filter box; 101. a box body; 102. an air inlet; 103. an exhaust port; 104. a filter screen; 105. an adsorption net; 106. filtering cotton; 2. a sulphur removal tank; 3. a combustion box; 301. a base; 302. a toughened glass cover; 303. a combustion table; 304. a controller; 4. a gas storage cabinet; 5. a drying oven; 6. a compression cabinet; 7. a gas storage tank; 8. a first air duct; 9. a second air duct; 10. a liquid discharge pipe; 11. a third air duct; 12. a connecting pipe; 13. and a gas injection pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-3, an embodiment of the present invention provides a device for utilizing carbon dioxide resource in flue gas, including a filter tank 1, a desulfurization tank 2, a combustion box 3, a gas storage tank 4, a drying tank 5, a compression tank 6, and a gas storage tank 7;
a first air duct 8 is connected between the filter box 1 and the desulphurization tank 2, a second air duct 9 corresponding to the first air duct 8 is fixedly connected to the top of one side of the inner wall of the desulphurization tank 2, a liquid discharge pipe 10 is fixedly connected to the bottom of one side of the outer wall of the desulphurization tank 2, a third air duct 11 is fixedly connected to one side of the outer wall of the desulphurization tank 2, which is far away from the first air duct 8, and one end of the third air duct 11, which is far away from the desulphurization tank 2, is fixedly connected with the combustion box 3;
all fixedly connected with connecting pipe 12 between combustion box 3, gas storage tank 4, drying cabinet 5 and the compression cabinet 6, the one end fixedly connected with of the compression gas outlet of compression cabinet 6 and the corresponding gas injection pipe 13 of gas holder 7.
The filter box 1 comprises a box body 101, an air inlet 102 and an air outlet 103 are respectively arranged in the centers of two sides of the outer wall of the box body 101, a filter screen 104, an adsorption screen 105 and filter cotton 106 are respectively arranged in the center of the box body 101, and the filter screen 104, the adsorption screen 105 and the filter cotton 106 can adsorb and filter smoke dust, impurities and a small amount of oxynitride in flue gas, so that the quality and purity of the subsequently prepared carbon dioxide are ensured.
The bottom filling at the center of the desulfurization pond 2 also has the desulfurization liquid, and the bottom of the second air duct 9 extends to the bottom of the desulfurization pond 2, and the bottom filling at the center of the desulfurization pond 2 also has the desulfurization liquid, and the bottom of the second air duct 9 extends to the bottom of the desulfurization pond 2, so that the sulfur dioxide in the leading-in gas can be fully reacted with the desulfurization liquid, and the adsorption of the sulfur dioxide in the gas is completed.
The desulfurization pond 2 adopts the full seal structure setting, all adopts the full seal structure setting through removing desulfurization pond 2 after admitting air and outlet, can prevent that gas from taking place to leak.
The combustion box 3 comprises a base 301, a toughened glass cover 302 is fixedly connected to the top of the base 301, a combustion table 303 is installed at the center of the top of the base 301, a controller 304 corresponding to the combustion table 303 is installed at the center of the outer surface of the front end of the base 301, the introduced gas can contain residual carbon monoxide which is not fully combusted, the carbon monoxide entering the toughened glass cover 302 can be combusted under the ignition of an ignition mechanism of the combustion table 303, water and carbon dioxide can be generated after the combustion, and only carbon dioxide is left in the fully combusted gas.
A method for utilizing carbon dioxide resources in flue gas comprises the following specific steps:
s1, flue gas generated by fossil fuel combustion of a thermal power plant is led into a filter box 1 through a special pipeline after waste heat utilization, a filter screen 104, an adsorption screen 105 and filter cotton 106 are arranged in the filter box 1 respectively, and the filter screen 104, the adsorption screen 105 and the filter cotton 106 can adsorb and filter smoke dust, impurities and a small amount of oxynitride in the flue gas;
s2, the filtered flue gas enters a desulfurization pool 2 through a first gas guide pipe 8 and a second gas guide pipe 9, a desulfurization solution is filled at the bottom of the center of the desulfurization pool 2, and the desulfurization solution in the desulfurization pool 2 and sulfur dioxide entering the gas undergo a chemical reaction, so that the adsorption of the sulfur dioxide in the gas is completed;
s3, the gas subjected to sulfur removal is guided into the combustion box 3 through the third air guide pipe 11, the combustion table 303 is installed at the center of the top of the base 301 of the combustion box 3, part of the carbon monoxide gas which is not fully combusted can be remained in the guided gas, the carbon monoxide gas entering the toughened glass cover 302 can be combusted under the ignition of the ignition mechanism of the combustion table 303, water and carbon dioxide can be generated after the combustion, and only carbon dioxide is remained in the gas after the full combustion;
s4, a large amount of carbon dioxide can be gathered and enter the gas storage cabinet 4, the drying box 5 and the compression cabinet 6 in sequence through the connecting pipe 12, the purified carbon dioxide can be purified, dried and compressed in sequence, and finally the purified carbon dioxide is injected into the gas storage tank 7 through the gas injection pipe 13 to be compressed and stored, so that the whole collection and utilization process is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a device of flue gas carbon dioxide resource utilization which characterized in that: comprises a filter box (1), a desulphurization pool (2), a combustion box (3), a gas storage cabinet (4), a drying box (5), a compression cabinet (6) and a gas storage tank (7);
a first air duct (8) is connected between the filter box (1) and the desulphurization tank (2), a second air duct (9) corresponding to the first air duct (8) is fixedly connected to the top of one side of the inner wall of the desulphurization tank (2), a liquid discharge pipe (10) is fixedly connected to the bottom of one side of the outer wall of the desulphurization tank (2), a third air duct (11) is fixedly connected to one side of the outer wall of the desulphurization tank (2) far away from the first air duct (8), and one end of the third air duct (11) far away from the desulphurization tank (2) is fixedly connected with the combustion box (3);
equal fixedly connected with connecting pipe (12) between combustion box (3), gas storage cabinet (4), drying cabinet (5) and compression cabinet (6), the one end fixedly connected with of compression gas outlet of compression cabinet (6) and gas injection pipe (13) that gas holder (7) are corresponding.
2. The device for utilizing the carbon dioxide resource in the flue gas according to claim 1, characterized in that: the filter box (1) comprises a box body (101), wherein an air inlet (102) and an air outlet (103) are respectively formed in the centers of two sides of the outer wall of the box body (101), and a filter screen (104), an adsorption screen (105) and filter cotton (106) are respectively installed in the center of the box body (101).
3. The device for utilizing the carbon dioxide resource in the flue gas according to claim 1, characterized in that: the bottom of the center of the desulfurization pool (2) is filled with desulfurization liquid, and the bottom end of the second gas guide pipe (9) extends to the bottom of the desulfurization pool (2).
4. The device for utilizing the carbon dioxide resource in the flue gas according to claim 3, characterized in that: the desulfurization tank (2) is arranged in a fully sealed structure.
5. The device for utilizing the carbon dioxide resource in the flue gas according to claim 1, characterized in that: the burning box (3) comprises a base (301), the top fixedly connected with toughened glass cover (302) of base (301), burning platform (303) is installed at the center at base (301) top, controller (304) corresponding with burning platform (303) are installed at the center of base (301) front end surface.
6. The method for utilizing the carbon dioxide resource in the flue gas according to any one of claims 1 to 5, characterized by comprising the following specific steps:
s1, flue gas generated by fossil fuel combustion of a thermal power plant is led into a filter box (1) through a special pipeline after waste heat utilization, a filter screen (104), an adsorption screen (105) and filter cotton (106) are arranged in the filter box (1), and the filter screen (104), the adsorption screen (105) and the filter cotton (106) can adsorb and filter smoke dust, impurities and a small amount of oxynitride in the flue gas;
s2, the filtered flue gas enters a desulfurization pool (2) through a first gas guide pipe (8) and a second gas guide pipe (9), a desulfurization solution is filled at the bottom of the center of the desulfurization pool (2), and the desulfurization solution in the desulfurization pool (2) and sulfur dioxide entering the gas undergo a chemical reaction, so that the adsorption of the sulfur dioxide in the gas is completed;
s3, the gas subjected to sulfur removal is guided into a combustion box (3) through a third gas guide pipe (11), a combustion table (303) is installed at the center of the top of a base (301) of the combustion box (3), part of the guided gas can remain sufficient carbon monoxide gas which is not combusted, the carbon monoxide gas entering a toughened glass cover (302) can be combusted under the ignition of an ignition mechanism of the combustion table (303), water and carbon dioxide can be generated after the combustion, and only the carbon dioxide remains in the gas after the sufficient combustion;
s4, a large amount of carbon dioxide can many get into gas storage holder (4), drying cabinet (5) and compression cabinet (6) in proper order through connecting pipe 12, and the carbon dioxide after purifying can be purified, dried and compressed in proper order, finally compresses and preserves in injecting gas holder (7) by gas injection pipe (13) to accomplish whole collection and utilization process.
CN202011573040.7A 2020-12-24 2020-12-24 Method and device for utilizing carbon dioxide resource in flue gas Pending CN112717572A (en)

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Cited By (1)

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CN116672866A (en) * 2023-06-16 2023-09-01 河南碳路者新材料科技有限公司 Flue gas treatment system for isostatic pressure graphite production

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Application publication date: 20210430