CN115025593A - Zeolite runner system for efficiently trapping flue gas carbon dioxide - Google Patents
Zeolite runner system for efficiently trapping flue gas carbon dioxide Download PDFInfo
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- CN115025593A CN115025593A CN202210737092.6A CN202210737092A CN115025593A CN 115025593 A CN115025593 A CN 115025593A CN 202210737092 A CN202210737092 A CN 202210737092A CN 115025593 A CN115025593 A CN 115025593A
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- carbon dioxide
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- adsorption
- flue gas
- water
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 59
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 59
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000003546 flue gas Substances 0.000 title claims abstract description 40
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 24
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000010457 zeolite Substances 0.000 title claims abstract description 24
- 238000003795 desorption Methods 0.000 claims abstract description 83
- 238000001179 sorption measurement Methods 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 91
- 230000000630 rising effect Effects 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 15
- 238000002336 sorption--desorption measurement Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 17
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 239000002808 molecular sieve Substances 0.000 description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000001165 hydrophobic group Chemical group 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- -1 physical absorption Chemical compound 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Classifications
-
- 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
- B01D53/06—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 moving adsorbents, e.g. rotating beds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
-
- 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
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of flue gas carbon dioxide capture, in particular to a zeolite runner system for efficiently capturing flue gas carbon dioxide, which comprises a fixed plate and a rotating rod rotatably connected to the inner side of the fixed plate, wherein a runner adsorption and desorption bed is fixedly connected to the outer side of the rotating rod, a shell is arranged on the outer side of the runner adsorption and desorption bed, and a variable frequency motor is fixedly connected to the left end of the fixed plate positioned on the right side of the rotating rod, the runner adsorption and desorption bed formed by 13X zeolite impregnated with piperazine solution adsorbs carbon dioxide in humid high-temperature flue gas in an adsorption area and dehydrates the carbon dioxide, the carbon dioxide adsorbed by the runner adsorption and desorption bed is desorbed by hot air in the desorption area, the high-temperature carbon dioxide exchanges heat with cold air through a dividing wall heat exchanger and cools the hot air after heat exchange, and the condensed carbon dioxide and the cooled carbon dioxide are respectively recovered, the capture efficiency of carbon dioxide is increased.
Description
Technical Field
The invention relates to the technical field of flue gas carbon dioxide capture, in particular to a zeolite runner system for efficiently capturing flue gas carbon dioxide.
Background
Carbon dioxide is one of the main components of greenhouse gases causing global warming, and contributes to the greenhouse effect by 55%. At present, the total amount of carbon dioxide discharged to the atmosphere worldwide every year reaches nearly 300 hundred million tons, and the utilization amount of the carbon dioxide is only about 1 hundred million tons and is far less than one percent of the total amount of the carbon dioxide discharged.
There are 4 main methods for capturing carbon dioxide, including physical absorption, adsorption, membrane separation, and chemical absorption. The physical adsorption material mainly comprises active carbon, porous substances, molecular sieves and the like, the chemical adsorption material mainly comprises amine substances, alkaline earth metal oxides and alkali metal carbonates, and the adsorbents can be divided into low-temperature adsorbents and high-temperature adsorbents according to different adsorption temperatures. The mainstream technology at present is a low-temperature adsorption technology, and the commonly used absorbent is an amine solution. However, the absorbent needs to cool the absorbed gas before absorption, so that the energy consumption is large, and certain corrosivity exists, thereby greatly limiting the application and development. However in actual CO 2 In the capture process, the absorbent has weak adsorption performance and low capture efficiency, the temperature of industrial flue gas is generally 55-80 ℃, and the use cost is also high.
Disclosure of Invention
The invention aims to provide a zeolite runner system for efficiently trapping flue gas carbon dioxide, which aims to solve the problems of weak adsorption performance, low trapping efficiency, high cost and high corrosion to equipment in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a zeolite runner system for efficiently trapping flue gas carbon dioxide comprises a fixed plate and a rotating rod connected to the inner side of the fixed plate in a rotating manner, wherein a runner adsorption and desorption bed is fixedly connected to the outer side of the rotating rod, a shell is arranged on the outer side of the runner adsorption and desorption bed, a variable frequency motor is fixedly connected to the left end of the fixed plate on the right side, a second chain wheel is fixedly connected to the tail end of a main shaft of the variable frequency motor, a chain belt is meshed to the outer side of the second chain wheel, a first chain wheel is fixedly connected to the outer side of the right end of the rotating rod and meshed with the chain belt, a main induced draft fan is arranged on the outer side of the runner adsorption and desorption bed, a chimney is communicated with an air outlet of the main induced draft fan, a desorption fan is arranged on the outer side of the runner adsorption and desorption bed, a dividing wall heat exchanger is communicated with an auxiliary temperature rising device, and the other end of the auxiliary temperature rising device is communicated with the rotating wheel adsorption and desorption bed, and a first controller is arranged outside the rotating wheel adsorption and desorption bed.
Preferably, the air outlet intercommunication of main draught fan has the barrel, and the chimney passes through the air outlet intercommunication of barrel and main draught fan, the inboard fixedly connected with water section of thick bamboo in top of barrel, the outside fixedly connected with flight of water section of thick bamboo, and flight and barrel fixed connection, the top outside screw connection of barrel has first cover, the top outside screw connection of water section of thick bamboo has the second cover, the rear end fixedly connected with temperature sensor of water section of thick bamboo, the inboard of water section of thick bamboo is provided with level sensor, the right-hand member fixedly connected with second controller of barrel, the right side of barrel is provided with the water pump, and the delivery port and the water section of thick bamboo intercommunication of water pump, the right-hand member fixedly connected with alarm of barrel.
Preferably, the runner adsorbs desorption bed contains adsorption zone and desorption district, the air intake of main draught fan passes through adsorption zone and runner adsorption desorption bed intercommunication, desorption fan's air inlet passes through desorption district and runner adsorption desorption bed intercommunication, desorption district and runner adsorption desorption bed intercommunication are passed through to the gas outlet of supplementary intensification ware.
Preferably, the inner side of the left end of the water cylinder is communicated with a water outlet pipe, the inner side of the water outlet pipe is provided with a butterfly valve, and the water outlet pipe penetrates through the cylinder body and is fixedly connected with the cylinder body.
Preferably, the variable frequency motor, the auxiliary temperature rising device, the dividing wall heat exchanger, the main induced draft fan and the desorption fan are electrically connected with the first controller, and the water pump, the temperature sensor and the water level sensor are electrically connected with the second controller.
Preferably, a first fluid inlet of the dividing wall heat exchanger is communicated with the outside atmosphere, a first fluid outlet of the dividing wall heat exchanger is communicated with the auxiliary temperature rising device, a second fluid inlet of the dividing wall heat exchanger is communicated with an air outlet of the desorption fan, a second fluid outlet of the dividing wall heat exchanger is communicated with the carbon dioxide recovery system, and a second fluid outlet of the dividing wall heat exchanger is communicated with the carbon dioxide condensate recovery tank.
Preferably, the outside of runner absorption desorption bed is provided with drive mechanism, drive mechanism contains inverter motor, first sprocket, second sprocket and chain belt.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, through arranging a first controller, a variable frequency motor, a first chain wheel, a second chain wheel, a chain belt, a rotating wheel adsorption and desorption bed, a main induced draft fan, a desorption fan, a dividing wall heat exchanger and an auxiliary temperature rising device, can ensure the reliable capture of the carbon dioxide in the flue gas, avoid the greenhouse effect caused by directly discharging the high-temperature carbon dioxide into the air, meanwhile, the heat loss is increased, the rotating wheel adsorption desorption bed which is composed of 13X zeolite soaked by piperazine solution adsorbs carbon dioxide in wet high-temperature flue gas in an adsorption area and dehydrates the flue gas, the carbon dioxide absorbed by the rotary wheel absorption desorption bed is desorbed in the desorption area through hot air, and then the high-temperature carbon dioxide exchanges heat with cold air through a dividing wall heat exchanger to reduce the temperature, and then the hot air after will exchanging the heat is desorbed once more, and the carbon dioxide after the condensation and the carbon dioxide gas after the cooling are retrieved respectively simultaneously, increase the practicality of device.
2. According to the invention, through the arrangement of the water pump, the temperature sensor, the water level sensor, the butterfly valve, the spiral piece, the main draught fan, the barrel, the outer barrel, the second controller and the alarm, the reliable recovery of the heat of the purified flue gas can be ensured, the hot water in the water barrel can be conveniently taken, the flue gas after the carbon dioxide is removed and the dehumidification is subjected to flue gas waste heat recovery by heating cold water and cooling, the water temperature and the water level in the water barrel are monitored in real time and fed back to the second controller, and the practicability of the device is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;
FIG. 4 is a schematic view of the structure of FIG. 1 at point C;
FIG. 5 is a process flow diagram of flue gas treatment in the present invention.
In the figure: the device comprises a rotating wheel adsorption desorption bed, a first controller, a shell, a main induced draft fan, a desorption fan, a partition wall heat exchanger, a second controller, a chimney, a water pump, a rotating rod, a fixing plate, a chain belt, a first chain wheel, a second chain wheel, a variable frequency motor, a barrel body, a spiral blade, a water barrel, a water level sensor, a temperature sensor and an alarm, wherein the rotating wheel adsorption desorption bed comprises 1 part, the first controller, the second controller, the chimney and the auxiliary temperature rising device comprise 2 parts, the water pump comprises 10 parts, the rotating rod is 11 parts, the fixing plate is 12 parts, the chain belt is 13 parts, the first chain wheel is 14 parts, the second chain wheel is 15 parts, the variable frequency motor is 16 parts, the barrel body is 17 parts, the spiral blade is 18 parts, the water barrel is 19 parts, the water level sensor is 20 parts, the temperature sensor is 21 parts and the alarm is 22 parts.
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.
Referring to fig. 1-5, the present invention provides a technical solution:
a zeolite runner system for efficiently trapping flue gas carbon dioxide comprises a fixed plate 12, wherein the inner side of the fixed plate 12 is rotatably connected with a rotating rod 11, the outer side of the rotating rod 11 is fixedly connected with a runner adsorption and desorption bed 1, the outer side of the runner adsorption and desorption bed 1 is provided with a shell 3, the left end of the fixed plate 12 positioned on the right side is fixedly connected with a variable frequency motor 16, the tail end of a main shaft of the variable frequency motor 16 is fixedly connected with a second chain wheel 15, the outer side of the second chain wheel 15 is engaged with a chain belt 13, the outer side of the right end of the rotating rod 11 is fixedly connected with a first chain wheel 14, the first chain wheel 14 is engaged with the chain belt 13, the outer side of the runner adsorption and desorption bed 1 is provided with a main induced draft fan 4, an air outlet of the main induced draft fan 4 is communicated with a chimney 8, the outer side of the runner adsorption and desorption bed 1 is provided with a desorption fan 5, an air outlet of the desorption fan 5 is communicated with a dividing wall heat exchanger 6, an air outlet of the dividing wall heat exchanger 6 is communicated with an auxiliary temperature rising device 9, the other end of the auxiliary temperature rising device 9 is communicated with the rotating wheel adsorption and desorption bed 1, the first controller 2 is arranged on the outer side of the rotating wheel adsorption and desorption bed 1, the low-temperature regeneration adsorption rotating wheel adopts a special inorganic silicate material in the using process, the hydrophobic group adopts special treatment, the solid adsorption material strengthens the capture function of carbon dioxide in dry air, the capillary effect is improved, and the desorption does not need too high energy consumption of 40-70 ℃.
The zeolite molecular sieve is 13X zeolite impregnated by piperazine solution, the pore size is 0.5-1.2nm, small pores per cubic centimeter can adsorb 0.31g of carbon dioxide, the adsorption rotating wheel system not only eliminates white rain and smoke in a main flue but also can not generate white rain and smoke during desorption in the use process, meanwhile, the zeolite molecular sieve adopts a specially treated hydrophobic group, the first controller 2 is a controller of the rotating wheel frame variable frequency motor 16 and a matched variable frequency motor 16 in the use process, the direct current brushless variable frequency motor 16 is adopted to increase the stability and control precision, the display screen can directly display the accurate rotating wheel rotating speed r/h, and the set rotating speed can be directly input for regulation in use.
The air outlet of the main draught fan 4 is communicated with a cylinder body 17, the chimney 8 is communicated with the air outlet of the main draught fan 4 through the cylinder body 17, the inner side of the top end of the cylinder body 17 is fixedly connected with a water cylinder 19, the outer side of the water cylinder 19 is fixedly connected with a spiral sheet 18, the spiral sheet 18 is fixedly connected with the cylinder body 17, the outer side of the top end of the cylinder body 17 is spirally connected with a first cylinder cover, the outer side of the top end of the water cylinder 19 is spirally connected with a second cylinder cover, the rear end of the water cylinder 19 is fixedly connected with a temperature sensor 21, the inner side of the water cylinder 19 is provided with a water level sensor 20, the right end of the cylinder body 17 is fixedly connected with a second controller 7, the right side of the cylinder body 17 is provided with a water pump 10, the water outlet of the water pump 10 is communicated with the water cylinder 19, the right end of the cylinder body 17 is fixedly connected with an alarm 22, and the normal temperature water is heated after high-temperature, moist flue gas purification and dehydration is ensured to be subjected to flue gas waste heat recovery and utilization in the using process; the rotary wheel adsorption and desorption bed 1 comprises an adsorption area and a desorption area, an air inlet of a main induced draft fan 4 is communicated with the rotary wheel adsorption and desorption bed 1 through the adsorption area, an air inlet of a desorption fan 5 is communicated with the rotary wheel adsorption and desorption bed 1 through the desorption area, an air outlet of an auxiliary temperature rising device 9 is communicated with the rotary wheel adsorption and desorption bed 1 through the desorption area, the rotary wheel adsorption and desorption bed 1 is ensured to dry and adsorb wet flue gas in the adsorption area in the using process, and then the high-temperature hot air discharged by the auxiliary temperature rising device 9 in the desorption area dehydrates and desorbs carbon dioxide on the rotary wheel adsorption and desorption bed 1; the inner side of the left end of the water cylinder 19 is communicated with a water outlet pipe, the inner side of the water outlet pipe is provided with a butterfly valve, the water outlet pipe penetrates through the cylinder body 17 and is fixedly connected with the cylinder body, and the reliable utilization of hot water in the water cylinder 19 is ensured in the use process; the variable frequency motor 16, the auxiliary temperature rising device 9, the dividing wall heat exchanger 6, the main induced draft fan 4 and the desorption fan 5 are electrically connected with the first controller 2, the water pump 10, the temperature sensor 21 and the water level sensor 20 are electrically connected with the second controller 7, and automatic control of the device is guaranteed in the using process; a first fluid air inlet of the dividing wall heat exchanger 6 is communicated with the outside atmosphere, a first fluid air outlet of the dividing wall heat exchanger 6 is communicated with the auxiliary temperature rising device 9, a second fluid air inlet of the dividing wall heat exchanger 6 is communicated with an air outlet of the desorption fan 5, a second fluid air outlet of the dividing wall heat exchanger 6 is communicated with a carbon dioxide recovery system, a second fluid water outlet of the dividing wall heat exchanger 6 is communicated with a carbon dioxide condensate water recovery tank, heat exchange and liquefaction of high-temperature carbon dioxide gas and cold air after desorption are ensured in the using process, reliable recovery of the carbon dioxide is ensured, dividing wall type heat exchange is carried out between the wind containing high heat after desorption and the air, sensible heat and latent heat are released by the wind after high heat desorption, the air is heated, and the air condenses the wind after high heat desorption, so that the temperature of the wind is reduced and a large amount of condensate water is generated; the outside of runner absorption desorption bed 1 is provided with drive mechanism 23, and drive mechanism 23 contains inverter motor 16, first sprocket 14, second sprocket 15 and chain belt 13, guarantees that inverter motor 16 stably drives runner absorption desorption bed 1 and rotates in the use.
The working process is as follows: before the device is used, an external power supply is needed to supply power, so that the reliable capture of flue gas carbon dioxide can be ensured, the greenhouse effect caused by the direct discharge of high-temperature carbon dioxide into the air is avoided, and the heat loss is increased, in the using process, a worker starts the variable frequency motor 16 through the second controller 7 to drive the second chain wheel 15 to rotate, under the matching of the chain belt 13 in meshing transmission with the second chain wheel 15 and the first chain wheel 14 respectively, the variable frequency motor 16 drives the chain belt 13 and the first chain wheel 14 to rotate through the second chain wheel 15, further under the matching of the rotary rod 11 in rotating connection with the fixed plate 12, the first chain wheel 14 drives the rotary rod 11 and the rotary wheel adsorption and desorption bed 1 to rotate, the rotary wheel adsorption and desorption bed 1 is covered by the shell 3 and is in direct contact with wet flue gas, the wet flue gas is powered by the main draught fan 4, and simultaneously the first controller 2 controls the variable frequency motor 16 to drive the rotary wheel adsorption and desorption bed 1 to rotate 2 to 15 revolutions per hour, the runner is covered with hydrophobic zeolite molecular sieve which is composed of honeycomb-shaped flow channels arranged in a longitudinal and transverse mode, when flue gas is directly opposite to the runner adsorption-desorption bed 1 and is conveyed to and flows through the flow channels, carbon dioxide is adsorbed into the adsorbent, simultaneously, sensible heat of the runner per se and adsorption heat generated by adsorption increase the air temperature, so that the flue gas is dehumidified in an adsorption area, the flue gas is discharged to a chimney 8 by a main induced draft fan 4 after being purified and dehumidified, the adsorption capacity of the flow channels is gradually saturated along with the rotation of the runner, when the flow channels after adsorption rotate to a regeneration area, an auxiliary temperature rising device 9 raises the temperature of cold air to hot air, the hot air is sucked to the regeneration area of the runner adsorption-desorption bed 1 under the coordination of a desorption fan 5, the hot air flows through the honeycomb flow channels, the walls of the flow channels containing the solid adsorbent are heated, the carbon dioxide in the adsorbent is driven out, and the runner molecular sieve is adsorbed and saturated, dry hot air is pumped to a desorption area by a desorption fan 5 to remove water, then concentrated wet flue gas enters a dividing wall type heat exchanger to exchange heat with cold air, the cold air is heated into the dry hot air while the dry hot air is condensed into small liquid drops, an auxiliary temperature rising device 9 reheats the dry hot air and blows the dry hot air to the desorption area by the desorption fan 5 to perform desorption and dehydration, a honeycomb-shaped adsorbent flow channel recovers adsorption capacity along with the rotation and desorption of a rotating wheel and is rotated to the adsorption area, the adsorption process is repeated in cycles and continuously performed, zeolite molecules are 13X zeolite soaked by piperazine solution, the size of a pore channel is 0.5-1.2nm, each cubic centimeter of pores can adsorb 0.31g of carbon dioxide, in the adsorption process of an adsorption rotating wheel system, the carbon dioxide in the flue gas is adsorbed on the rotating wheel zeolite after passing through the rotating wheel, the adsorption efficiency is generally 90%, then the heat of the purified and dehydrated flue gas is recovered again, the carbon dioxide adsorbed on the zeolite is desorbed by middle-high temperature desorption air at 40 to 70 ℃ in the desorption process, the desorption air volume is a fraction to a dozen of the adsorption air volume, the high heat is contained in the heat exchange process, the desorbed air carries out dividing wall type heat exchange with the air through a dividing wall heat exchanger 6, the high heat desorbed air releases sensible heat and latent heat and heats the air, the air condenses the high heat desorbed air to reduce the temperature and generate condensed water, the hot air is desorbed in a regeneration area of the rotary wheel adsorption and desorption bed 1, the purity of the carbon dioxide in the desorbed air after heat exchange is 56 to 80 percent and enters a carbon dioxide recovery system, meanwhile, the liquefied carbon dioxide enters a recovery water tank of the carbon dioxide condensed water, in addition, the reliable recovery of the purified flue gas heat can be ensured, and simultaneously the hot water in the water barrel 19 can be conveniently taken, after the flue gas is blown to the rotary wheel adsorption desorption bed 1 by the main induced draft fan 4 and carbon dioxide is adsorbed, the main induced draft fan 4 blows the purified and dehydrated high-temperature flue gas into the cylinder body 17, the hot gas spirally descends from the top side of the cylinder body 17 to heat water on the inner side of the water cylinder 19 under the guiding of the spiral sheet 18 between the cylinder body 17 and the water cylinder 19, and finally the hot gas is blown out through the chimney 8, the temperature sensor 21 monitors the water temperature on the inner side of the water cylinder 19 in real time and feeds the water temperature back to the second controller 7, if the temperature value fed back by the second controller 7 when the purified flue gas is not blown into the cylinder body 17 is higher and exceeds a preset value, the second controller 7 starts the alarm 22 to give an early warning to remind a worker to open the butterfly valve to collect hot water in time, the water level sensor 20 monitors the water level in the water cylinder 19 in real time and feeds the water back to the second controller 7, and if the water level is lower than the preset value, the second controller 7 starts the water pump 10 to pump water in the water cylinder 19, the water level sensor 20 monitors the water level in the water tank 19 in real time, and the second controller 7 stops the water pump 10 from pumping water if a predetermined value is reached.
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 (7)
1. A zeolite runner system for efficiently capturing flue gas carbon dioxide, which comprises a fixed plate (12) and a rotating rod (11) rotatably connected to the inner side of the fixed plate (12), and is characterized in that: the outer side of the rotating rod (11) is fixedly connected with a rotating wheel adsorption desorption bed (1), the outer side of the rotating wheel adsorption desorption bed (1) is provided with a shell (3), the rotating wheel adsorption desorption bed is positioned on the right side, the left end of the fixed plate (12) is fixedly connected with a variable frequency motor (16), the main shaft end of the variable frequency motor (16) is fixedly connected with a second chain wheel (15), a chain belt (13) is meshed with the outer side of the second chain wheel (15), a first chain wheel (14) is fixedly connected with the outer side of the right end of the rotating rod (11), the first chain wheel (14) is meshed with the chain belt (13), a main induced draft fan (4) is arranged on the outer side of the rotating wheel adsorption desorption bed (1), a chimney (8) is communicated with an air outlet of the main induced draft fan (4), a desorption fan (5) is arranged on the outer side of the rotating wheel adsorption desorption bed (1), and a dividing wall heat exchanger (6) is communicated with an air outlet of the desorption fan (5), an air outlet of the dividing wall heat exchanger (6) is communicated with an auxiliary temperature rising device (9), the other end of the auxiliary temperature rising device (9) is communicated with the rotating wheel adsorption and desorption bed (1), and a first controller (2) is arranged on the outer side of the rotating wheel adsorption and desorption bed (1).
2. The zeolite wheel system for efficiently capturing flue gas carbon dioxide as claimed in claim 1, wherein: the air outlet intercommunication of main draught fan (4) has barrel (17), and chimney (8) are through the air outlet intercommunication of barrel (17) and main draught fan (4), the inboard fixedly connected with water drum (19) in top of barrel (17), the outside fixedly connected with flight (18) of water drum (19), and flight (18) and barrel (17) fixed connection, the top outside spiral connection of barrel (17) has first cover, the top outside spiral connection of water drum (19) has the second cover, the rear end fixedly connected with temperature sensor (21) of water drum (19), the inboard of water drum (19) is provided with level sensor (20), the right-hand member fixedly connected with second controller (7) of barrel (17), the right side of barrel (17) is provided with water pump (10), and the delivery port and the water drum (19) intercommunication of water pump (10), the right end of the barrel (17) is fixedly connected with an alarm (22).
3. The zeolite wheel system for efficiently capturing flue gas carbon dioxide as claimed in claim 1, wherein: the runner adsorbs desorption bed (1) and contains adsorption zone and desorption district, the air intake of main draught fan (4) passes through adsorption zone and runner and adsorbs desorption bed (1) intercommunication, the air inlet of desorption fan (5) passes through desorption district and runner and adsorbs desorption bed (1) intercommunication, the gas outlet of supplementary intensification ware (9) passes through desorption district and runner and adsorbs desorption bed (1) intercommunication.
4. The zeolite wheel system for efficiently capturing flue gas carbon dioxide as claimed in claim 2, wherein: the inner side of the left end of the water cylinder (19) is communicated with a water outlet pipe, the inner side of the water outlet pipe is provided with a butterfly valve, and the water outlet pipe penetrates through the cylinder body (17) and is fixedly connected with the cylinder body.
5. The zeolite wheel system for efficiently capturing flue gas carbon dioxide as claimed in claim 2, wherein: the variable frequency motor (16), the auxiliary temperature rising device (9), the dividing wall heat exchanger (6), the main induced draft fan (4) and the desorption fan (5) are electrically connected with the first controller (2), and the water pump (10), the temperature sensor (21) and the water level sensor (20) are electrically connected with the second controller (7).
6. The zeolite wheel system for efficiently capturing flue gas carbon dioxide as claimed in claim 1, wherein: the first fluid air inlet of the dividing wall heat exchanger (6) is communicated with the outside atmosphere, the first fluid air outlet of the dividing wall heat exchanger (6) is communicated with the auxiliary temperature rising device (9), the second fluid air inlet of the dividing wall heat exchanger (6) is communicated with the air outlet of the desorption fan (5), the second fluid air outlet of the dividing wall heat exchanger (6) is communicated with the carbon dioxide recovery system, and the second fluid water outlet of the dividing wall heat exchanger (6) is communicated with the carbon dioxide condensate recovery tank.
7. The zeolite wheel system for efficiently capturing flue gas carbon dioxide as claimed in claim 1, wherein: the outer side of the rotating wheel adsorption and desorption bed (1) is provided with a transmission mechanism (23), and the transmission mechanism (23) comprises a variable frequency motor (16), a first chain wheel (14), a second chain wheel (15) and a chain belt (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210737092.6A CN115025593A (en) | 2022-06-27 | 2022-06-27 | Zeolite runner system for efficiently trapping flue gas carbon dioxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210737092.6A CN115025593A (en) | 2022-06-27 | 2022-06-27 | Zeolite runner system for efficiently trapping flue gas carbon dioxide |
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| CN115025593A true CN115025593A (en) | 2022-09-09 |
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| CN202210737092.6A Pending CN115025593A (en) | 2022-06-27 | 2022-06-27 | Zeolite runner system for efficiently trapping flue gas carbon dioxide |
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