CN116020261B - Ship tail gas carbon capture micro-channel reactor - Google Patents
Ship tail gas carbon capture micro-channel reactor Download PDFInfo
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- CN116020261B CN116020261B CN202310025692.4A CN202310025692A CN116020261B CN 116020261 B CN116020261 B CN 116020261B CN 202310025692 A CN202310025692 A CN 202310025692A CN 116020261 B CN116020261 B CN 116020261B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 224
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims description 119
- 230000004927 fusion Effects 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 62
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 40
- 239000000243 solution Substances 0.000 description 36
- 238000010521 absorption reaction Methods 0.000 description 32
- 229910002092 carbon dioxide Inorganic materials 0.000 description 20
- 239000001569 carbon dioxide Substances 0.000 description 20
- 239000002904 solvent Substances 0.000 description 18
- 238000012856 packing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 102000003846 Carbonic anhydrases Human genes 0.000 description 2
- 108090000209 Carbonic anhydrases Proteins 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011797 cavity material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
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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
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The ship tail gas carbon capture micro-channel reactor comprises a shell, a lean solution outlet, a rich solution outlet, a lean solution inlet, an upper ring, an upper vent, a lower ring, a lower vent, a reactor inner core, a reaction zone, an upper sealing cover and a lower sealing cover; the lower end of the inner wall of the shell is provided with a reactor inner core, the top of the reactor inner core is provided with a reaction zone, the top of the shell is connected with the bottom of the upper sealing cover, and the bottom of the shell is connected with the top of the lower sealing cover; the top of the upper sealing cover is connected with the bottom of the upper ring, the left side of the upper ring is connected with the lean solution inlet pipe, the right side of the upper ring is connected with the rich solution outlet pipe, and the top of the upper ring is provided with an upper vent; the bottom of lower closing cap is connected with the top of lower ring, and the right side of lower ring is connected with lean solution outlet pipe, and the lower vent has been seted up to the bottom of lower ring. The design effectively solves the problem of low capture efficiency caused by low carbon content of ship tail gas in maintenance.
Description
Technical Field
The invention relates to an improvement of a ship tail gas treatment technology, belongs to the field of tail gas treatment, and particularly relates to a ship tail gas carbon capture micro-channel reactor.
Background
The capture of carbon dioxide is divided into: the method comprises the steps of pre-combustion trapping, oxygen-enriched combustion trapping and post-combustion trapping, wherein the post-combustion trapping is a carbon trapping technology suitable for ships in consideration of the current trapping technology and cost.
The spray packing tower is adopted in the current ship tail gas carbon capture scheme, because the spray packing tower needs necessary base space, space at the bottom and the top of the upright column and space between every packing beds for gas-liquid redistribution besides the packing space, the concentration of the ship tail gas carbon dioxide is low, the height of the packing spray tower is in direct proportion to the absorption rate, the existing ship carbon capture equipment adopts absorption tower equipment of traditional chemical industry, and the traditional ship carbon capture equipment is difficult to adapt to ship environment in terms of space utilization rate and capture efficiency, so that the traditional packing spray tower is difficult to realize effective carbon capture in the limited space of a ship.
Chinese patent application No. CN202211157812.8, application day 2022, 9 and 22 discloses a device for capturing carbon dioxide in ship tail gas, so that seawater absorbs carbon dioxide in ship tail gas and discharges the carbon dioxide, comprising: the heat exchange tower is used for cooling the ship tail gas entering the heat exchange tower; the absorption tower is internally provided with catalytic filler so as to enable seawater entering the absorption tower to react with ship tail gas entering the absorption tower; wherein the heat exchange tower is communicated with the absorption tower; and cooling the ship tail gas by the heat exchange tower, then entering the absorption tower, absorbing carbon dioxide in the ship tail gas by seawater entering the absorption tower, and then discharging the ship tail gas out of the absorption tower. The carbonic anhydrase in the catalytic filler is used for catalyzing the hydration reaction between the carbon dioxide and the seawater, so that the seawater does not need to be heated and regenerated, and the captured carbon dioxide does not need to be liquefied and stored, thereby greatly reducing the energy consumption and the volume of the system; the carbonic anhydrase is fixed on the filler, so that the mass transfer rate is increased, the total volume of the absorption tower is reduced, and the comparison document does not solve the problem of unsatisfactory carbon emission reduction effect caused by insufficient contact between the absorbent and the tail gas due to overlarge volume of the ship carbon capture equipment.
The disclosure of this background section is only intended to increase the understanding of the general background of the present patent application and should not be taken as an admission or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to solve the problems of the prior art that the volume of a ship carbon capture device is overlarge, and the carbon emission reduction effect is not ideal due to insufficient contact between an absorbent and tail gas, and provides a ship tail gas carbon capture microchannel reactor which is suitable in volume and is fully caused by contact between the absorbent and tail gas.
In order to achieve the above object, the technical solution of the present invention is: the ship tail gas carbon capture micro-channel reactor comprises a shell, a lean solution outlet, a rich solution outlet, a lean solution inlet, an upper ring, an upper vent, a lower ring, a lower vent, a reactor inner core, a reaction zone, an upper sealing cover and a lower sealing cover;
the lower end of the inner wall of the shell is provided with a reactor inner core, the top of the reactor inner core is provided with a reaction zone, the top of the shell is connected with the bottom of the upper sealing cover, and the bottom of the shell is connected with the top of the lower sealing cover;
the top of the upper sealing cover is connected with the bottom of the upper ring, the left side of the upper ring is connected with the lean solution inlet, the right side of the upper ring is connected with the rich solution outlet, and the top of the upper ring is provided with an upper vent;
The bottom of the lower sealing cover is connected with the top of the lower ring, the right side of the lower ring is connected with the lean liquid outlet, and the bottom of the lower ring is provided with a lower vent;
The upper air port at the top of the reaction zone is communicated with the upper air port, the lower air port at the bottom of the reaction zone is communicated with the lower air port, the upper liquid port at the top of the reaction zone is communicated with the lean liquid outlet, the lower liquid port at the bottom of the reaction zone is communicated with the lean liquid inlet, the upper air port is communicated with the rich liquid outlet, a fusion cavity is arranged in the reaction zone, and gas and liquid are contacted in the fusion cavity.
The reaction zone comprises a reaction channel and a vertical pipe, a reaction port is arranged on the left side of the vertical pipe, two reaction ports are arranged on the right side of the vertical pipe, the vertical pipe is communicated with the reaction channel through the reaction port and the two reaction ports, the fusion cavity is a reaction channel, and gas and liquid are contacted in the reaction channel;
the reaction channel and the vertical pipe are arranged on the reactor inner core, an upper air port and a lower air port on the reaction channel are communicated with the upper air port and the lower air port, an upper liquid port and a lower liquid port on the vertical pipe are communicated with the lean liquid outlet and the lean liquid inlet, and an upper air port on the reaction channel is communicated with the rich liquid outlet.
The height of the first reaction port is larger than that of the second reaction port.
The reaction zone comprises a spiral pipe and two reaction channels, a three reaction port is arranged on the left side of the spiral pipe, a four reaction port is arranged on the right side of the vertical pipe, the spiral pipe is communicated with the two reaction channels through the three reaction port and the four reaction port, the fusion cavity is the two reaction channels, and gas and liquid are in contact in the two reaction channels;
The two reaction channels and the spiral tube are arranged on the reactor inner core, an upper air port and a lower air port on the two reaction channels are communicated with the upper air port and the lower air port, an upper liquid port and a lower liquid port on the spiral tube are communicated with the lean liquid outlet and the lean liquid inlet, and an upper air port on the two reaction channels is communicated with the rich liquid outlet.
The second reaction channel consists of a plurality of spiral channels, all the spiral channels are wound and distributed on the side wall of the spiral pipe, all the spiral channels are mutually communicated, and the spiral channels are communicated with the second reaction channel through three reaction ports and four reaction ports.
The reaction zone consists of a group of spiral pipes and two reaction channels or a group of spiral pipes and two reaction channels.
The reaction zone comprises an outer cylinder and two inner cylinders, the two inner cylinders are connected with the outer cylinder through support plates, and the outer cylinder is arranged on the inner core of the reactor.
An outlet end is arranged between the outer cylinder, the inner cylinder and the upper two support plates, and an inlet end is arranged between the outer cylinder, the inner cylinder and the lower two support plates;
the upper air port and the lower air port on the inner cylinder are communicated with the upper air port and the lower air port, the lean liquid inlet, the lower liquid port on the inner cylinder and the inlet end are communicated, and the outlet end, the upper liquid port on the inner cylinder, the lean liquid outlet and the rich liquid outlet are communicated.
The left end of the outer cylinder is flush with the left end of the inner cylinder on the left side, and the right end of the outer cylinder is flush with the right end of the inner cylinder on the right side.
The number of the reactor cores is one or more.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the ship tail gas carbon capture microchannel reactor, the reactor inner core is arranged at the lower end of the inner wall of the shell, the reaction zone is arranged at the top of the reactor inner core, the top of the shell is connected with the bottom of the upper sealing cover, the bottom of the shell is connected with the top of the lower sealing cover, the upper air port at the top of the reaction zone is communicated with the upper air port, the lower air port at the bottom of the reaction zone is communicated with the lower air port, the upper liquid port at the top of the reaction zone is communicated with the lean liquid outlet, the lower liquid port at the bottom of the reaction zone is communicated with the lean liquid inlet, the upper air port is communicated with the rich liquid outlet, the reaction zone is internally provided with the fusion cavity, gas and liquid are contacted in the fusion cavity, the reaction zone has extremely high specific surface area, can reach more than two thousand times of that of a traditional tower device, absorption liquid and target gas can be fully mixed, the problem of low capture efficiency caused by low carbon content of ship tail gas is effectively solved, meanwhile, the reaction zone can be adjusted according to the volume and weight of the device, the height fits the ship tail gas capture environment, and the carbon treatment efficiency is improved. Therefore, the carbon treatment efficiency is high, and the carbon treatment device is more suitable for ships.
2. The invention relates to a ship tail gas carbon capture microchannel reactor, wherein a reaction zone comprises a spiral pipe and two reaction channels, a three reaction port is arranged on the left side of the spiral pipe, a four reaction port is arranged on the right side of a vertical pipe, the spiral pipe is communicated with the two reaction channels through the three reaction port and the four reaction ports, a fusion cavity is the two reaction channels, gas and liquid are contacted in the two reaction channels, the two reaction channels are composed of a plurality of spiral channels, all the spiral channels are wound and distributed on the side wall of the spiral pipe, all the spiral channels are communicated with each other, the spiral pipe and the spiral channels adopt the design of spiral pipes, and under the condition that the lengths of inlet and outlet pipes are the same, the spiral pipes have longer channels relative to the straight pipes, so that the equipment size can be reduced, and simultaneously, the spiral can avoid more uniform gas-liquid mixing and increase the absorption effect. Therefore, the reaction time of the design is sufficient, and the absorption effect is better.
3. The invention relates to a ship tail gas carbon capture microchannel reactor, wherein a reaction zone comprises an outer cylinder and two inner cylinders, the two inner cylinders are connected with the outer cylinder through support plates, the outer cylinder is arranged on an inner core of the reactor, outlet ends are arranged between the outer cylinder, the inner cylinder and the two support plates above, inlet ends are arranged between the outer cylinder, the inner cylinder and the two support plates below, when more reaction channels are needed, gas and liquid are directly contacted in the outer cylinder, the needed pressure is smaller, the applicable tail gas carbon dioxide concentration is wider, and the carbon emission reduction efficiency and the removal rate are higher. Therefore, the design is suitable for the condition that more reaction channels are needed, and the efficiency is higher.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of a reaction channel according to the present invention.
FIG. 3 is a schematic diagram of the structure of two reaction channels in the present invention.
FIG. 4 is a schematic view of the structure of the spiral pipe of the present invention.
Fig. 5 is a schematic structural view of the outer tub in the present invention.
FIG. 6 is a schematic view of the inner barrel of the present invention.
FIG. 7 is a cross-sectional view of the inner barrel of the present invention.
In the figure: the device comprises a shell 1, a lean solution outlet 2, a rich solution outlet 3, a lean solution inlet 4, an upper ring 5, an upper vent 51, a lower ring 6, a lower vent 61, a reactor inner core 7, a reaction channel 8, a vertical pipe 9, a reaction port 91, a two reaction port 92, a spiral pipe 93, a two reaction channel 94, a spiral channel 941, a three reaction port 95, a four reaction port 96, an upper sealing cover 10, a lower sealing cover 11, an outer cylinder 12, an inner cylinder 13, a support plate 14, an outlet end 15, an inlet end 16, an upper vent 17, a lower vent 171, an upper vent 18, a lower vent 181 and a reaction zone A.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 7, a ship exhaust carbon capture microchannel reactor comprises a shell 1, a lean solution outlet 2, a rich solution outlet 3, a lean solution inlet 4, an upper ring 5, an upper vent 51, a lower ring 6, a lower vent 61, a reactor core 7, a reaction zone a, an upper cover 10 and a lower cover 11;
The lower end of the inner wall of the shell 1 is provided with a reactor inner core 7, the top of the reactor inner core 7 is provided with a reaction zone A, the top of the shell 1 is connected with the bottom of the upper sealing cover 10, and the bottom of the shell 1 is connected with the top of the lower sealing cover 11;
the top of the upper sealing cover 10 is connected with the bottom of the upper ring 5, the left side of the upper ring 5 is connected with the lean liquid inlet 2, the right side of the upper ring 5 is connected with the rich liquid outlet 3, and the top of the upper ring 5 is provided with an upper vent 51;
The bottom of the lower sealing cover 11 is connected with the top of the lower ring 6, the right side of the lower ring 6 is connected with the lean liquid outlet 4, and a lower vent 61 is formed in the bottom of the lower ring 6;
the upper air port 17 at the top of the reaction zone A is communicated with the upper air port 51, the lower air port 171 at the bottom of the reaction zone A is communicated with the lower air port 61, the upper liquid port 18 at the top of the reaction zone A is communicated with the lean liquid outlet 2, the lower liquid port 181 at the bottom of the reaction zone A is communicated with the lean liquid inlet 4, the upper air port 17 is communicated with the rich liquid outlet 3, a fusion cavity is arranged in the reaction zone A, and gas and liquid are contacted in the fusion cavity.
The reaction zone A comprises a reaction channel 8 and a vertical pipe 9, a reaction port 91 is arranged on the left side of the vertical pipe 9, two reaction ports 92 are arranged on the right side of the vertical pipe 9, the vertical pipe 9 is communicated with the reaction channel 8 through the reaction port 91 and the two reaction ports 92, the fusion cavity is the reaction channel 8, and gas and liquid are in contact in the reaction channel 8;
The reaction channel 8 and the vertical pipe 9 are arranged on the reactor inner core 7, an upper air port 17 and a lower air port 171 on the reaction channel 8 are communicated with the upper air port 51 and the lower air port 61, an upper liquid port 18 and a lower liquid port 181 on the vertical pipe 9 are communicated with the lean liquid outlet 2 and the lean liquid inlet 4, and an upper air port 17 on the reaction channel 8 is communicated with the rich liquid outlet 3.
The height of the first reaction port 91 is greater than the height of the second reaction port 92.
The reaction zone A comprises a spiral pipe 93 and two reaction channels 94, a three reaction port 95 is arranged on the left side of the spiral pipe 93, a four reaction port 96 is arranged on the right side of the vertical pipe 9, the spiral pipe 93 is communicated with the two reaction channels 94 through the three reaction port 95 and the four reaction port 96, the fusion cavity is the two reaction channels 94, and gas and liquid are in contact in the two reaction channels 94;
The two reaction channels 94 and the spiral pipe 93 are arranged on the reactor inner core 7, the upper air port 17 and the lower air port 171 on the two reaction channels 94 are communicated with the upper air port 51 and the lower air port 61, the upper liquid port 18 and the lower liquid port 181 on the spiral pipe 93 are communicated with the lean liquid outlet 2 and the lean liquid inlet 4, and the upper air port 17 on the two reaction channels 94 is communicated with the rich liquid outlet 3.
The two reaction channels 94 are composed of a plurality of spiral channels 941, all the spiral channels 941 are distributed around the side wall of the spiral tube 93 in a winding mode, all the spiral channels 941 are communicated with each other, and the spiral channels 941 are communicated with the two reaction channels 94 through three reaction ports 95 and four reaction ports 96.
The reaction zone A is composed of one group of spiral pipes 93 and two reaction channels 94 or a plurality of groups of spiral pipes 93 and two reaction channels 94.
The reaction zone A comprises an outer cylinder 12 and two inner cylinders 13, the two inner cylinders 13 are connected with the outer cylinder 12 through support plates 14, and the outer cylinder 12 is arranged on the reactor inner core 7.
An outlet end 15 is arranged between the outer cylinder 12, the inner cylinder 13 and the upper two support plates 14, and an inlet end 16 is arranged between the outer cylinder 12, the inner cylinder 13 and the lower two support plates 14;
The upper air port 17 and the lower air port 171 on the inner cylinder 13 are communicated with the upper air port 51 and the lower air port 61, the lean liquid inlet 4, the lower liquid port 181 on the inner cylinder 13 and the inlet end 16 are communicated, and the outlet end 15, the upper liquid port 18 on the inner cylinder 13, the lean liquid outlet 2 and the rich liquid outlet 3 are communicated.
The left end of the outer cylinder 12 is flush with the left end of the inner cylinder 13 on the left side, and the right end of the outer cylinder 12 is flush with the right end of the inner cylinder 13 on the right side.
The number of the reactor cores 7 is one or more.
The principle of the invention is explained as follows: the vessel tail gas enters the reaction zone A from the lower vent port 61, the absorption solvent enters the reaction zone A from the lean solution inlet 4, the vessel tail gas and the absorption solvent are fully reacted in the reactor inner core 7 after being fused in the fusion cavity, the carbon dioxide in the vessel tail gas is absorbed, the redundant absorption solvent flows out from the lean solution inlet 2 after the reaction is finished, the reacted gas flows out from the upper vent port 51, and the rich solution absorbing the carbon dioxide flows out from the rich solution outlet 3.
Example 1:
The ship tail gas carbon capture micro-channel reactor comprises a shell 1, a lean solution outlet 2, a rich solution outlet 3, a lean solution inlet 4, an upper ring 5, an upper vent 51, a lower ring 6, a lower vent 61, a reactor inner core 7, a reaction zone A, an upper sealing cover 10 and a lower sealing cover 11; the lower end of the inner wall of the shell 1 is provided with a reactor inner core 7, the top of the reactor inner core 7 is provided with a reaction zone A, the top of the shell 1 is connected with the bottom of the upper sealing cover 10, and the bottom of the shell 1 is connected with the top of the lower sealing cover 11; the top of the upper sealing cover 10 is connected with the bottom of the upper ring 5, the left side of the upper ring 5 is connected with the lean liquid inlet 2, the right side of the upper ring 5 is connected with the rich liquid outlet 3, and the top of the upper ring 5 is provided with an upper vent 51; the bottom of the lower sealing cover 11 is connected with the top of the lower ring 6, the right side of the lower ring 6 is connected with the lean liquid outlet 4, and a lower vent 61 is formed in the bottom of the lower ring 6; the upper air port 17 at the top of the reaction zone A is communicated with the upper air port 51, the lower air port 171 at the bottom of the reaction zone A is communicated with the lower air port 61, the upper liquid port 18 at the top of the reaction zone A is communicated with the lean liquid outlet 2, the lower liquid port 181 at the bottom of the reaction zone A is communicated with the lean liquid inlet 4, the upper air port 17 is communicated with the rich liquid outlet 3, a fusion cavity is arranged in the reaction zone A, and gas and liquid are contacted in the fusion cavity; the number of the reactor cores 7 is one or more.
When in application, the method comprises the following steps: the vessel tail gas enters the reaction zone A from the lower vent port 61, the absorption solvent enters the reaction zone A from the lean solution inlet 4 through the lower liquid port 181, the vessel tail gas and the absorption solvent are fully reacted after being fused in the fusion cavity, the carbon dioxide in the vessel tail gas is absorbed, after the reaction is finished, the redundant absorption solvent flows out from the upper liquid port 18 of the reaction zone A through the lean solution inlet 2, the reacted gas flows out from the upper gas port 17 of the reaction zone A through the upper vent port 51, and the rich solution absorbing the carbon dioxide flows out from the reaction zone A through the rich solution outlet 3.
Example 2:
example 2 is substantially the same as example 1 except that:
The reaction zone A comprises a reaction channel 8 and a vertical pipe 9, a reaction port 91 is arranged on the left side of the vertical pipe 9, two reaction ports 92 are arranged on the right side of the vertical pipe 9, the vertical pipe 9 is communicated with the reaction channel 8 through the reaction port 91 and the two reaction ports 92, a fusion cavity is the reaction channel 8, and gas and liquid are in contact in the reaction channel 8; the reaction channel 8 and the vertical pipe 9 are arranged on the reactor inner core 7, an upper air port 17 and a lower air port 171 on the reaction channel 8 are communicated with the upper air port 51 and the lower air port 61, an upper liquid port 18 and a lower liquid port 181 on the vertical pipe 9 are communicated with the lean liquid outlet 2 and the lean liquid inlet 4, and an upper air port 17 on the reaction channel 8 is communicated with the rich liquid outlet 3; the height of the first reaction port 91 is greater than the height of the second reaction port 92.
When in application, the method comprises the following steps: the vessel tail gas enters a reaction channel 8 from a lower vent 61, the absorption solvent enters a vertical tube 9 from a lean solution inlet 4, the absorption solvent flows into the reaction channel 8 through a reaction port 91 and two reaction ports 92 and then carries out fusion reaction with the vessel tail gas, the absorption solvent absorbs carbon dioxide in the vessel tail gas, after the reaction is finished, the redundant absorption solvent flows out from an upper liquid port 18 on the vertical tube 9 through a lean solution outlet 2, the reacted gas flows out from an upper gas port 17 of the reaction channel 8 through an upper vent 51, the rich solution absorbing the carbon dioxide flows out from the reaction channel 8 through a rich solution outlet 3, and when the gas flow is large, the scheme is adopted.
Example 3:
example 3 is substantially the same as example 2 except that:
The reaction zone A comprises a spiral pipe 93 and two reaction channels 94, a three reaction port 95 is arranged on the left side of the spiral pipe 93, a four reaction port 96 is arranged on the right side of the vertical pipe 9, the spiral pipe 93 is communicated with the two reaction channels 94 through the three reaction port 95 and the four reaction port 96, a fusion cavity is the two reaction channels 94, and gas and liquid are in contact in the two reaction channels 94; the two reaction channels 94 and the spiral pipe 93 are arranged on the reactor inner core 7, an upper air port 17 and a lower air port 171 on the two reaction channels 94 are communicated with the upper air port 51 and the lower air port 61, an upper liquid port 18 and a lower liquid port 181 on the spiral pipe 93 are communicated with the lean liquid outlet 2 and the lean liquid inlet 4, and an upper air port 17 on the two reaction channels 94 is communicated with the rich liquid outlet 3; the two reaction channels 94 are composed of a plurality of spiral channels 941, all the spiral channels 941 are wound and distributed on the side walls of the spiral tube 93, all the spiral channels 941 are communicated with each other, the spiral channels 941 are communicated with the two reaction channels 94 through three reaction ports 95 and four reaction ports 96, the reaction area A is composed of one group of spiral tubes 93 and the two reaction channels 94 or a plurality of groups of spiral tubes 93 and the two reaction channels 94, and the number of the spiral tubes 93 and the two reaction channels 94 is adjusted according to the amounts of reaction solution and ship waste gas so as to facilitate better reaction and improve the reaction efficiency.
When in application, the method comprises the following steps: the vessel exhaust enters the second reaction channel 94 from the upper vent port 51, the absorption solvent enters the spiral tube 93 from the lean solution inlet 4, the absorption solvent is fused with the vessel exhaust after flowing into the spiral channel 941 through the three reaction ports 95 and the four reaction ports 96, the absorption solvent absorbs carbon dioxide in the vessel exhaust, after the reaction is finished, the redundant absorption solvent flows out from the upper liquid port 18 on the spiral tube 93 through the lean solution outlet 2, the reacted gas flows out from the lower gas port 171 of the spiral channel 941 through the lower vent port 61, and the rich solution absorbing the carbon dioxide flows out from the spiral channel 941 through the rich solution outlet 3.
The spiral pipe 93 and the spiral channel 941 adopt the design of a spiral pipeline, under the same infringement condition of the lengths of the inlet pipeline and the outlet pipeline, the spiral pipeline has a longer channel relative to the straight pipe, the equipment size can be reduced, meanwhile, the spiral can avoid the gas and the liquid to be mixed more uniformly, the absorption effect is improved, and the scheme is more suitable for being adopted when the flow rate and the pressure ratio of the liquid are larger.
Example 4:
example 4 is substantially the same as example 3 except that:
The reaction zone A comprises an outer cylinder 12 and two inner cylinders 13, wherein the two inner cylinders 13 are connected with the outer cylinder 12 through support plates 14, and the outer cylinder 12 is arranged on a reactor inner core 7; an outlet end 15 is arranged between the outer cylinder 12, the inner cylinder 13 and the upper two support plates 14, and an inlet end 16 is arranged between the outer cylinder 12, the inner cylinder 13 and the lower two support plates 14; the upper air port 17 and the lower air port 171 on the inner cylinder 13 are communicated with the upper air port 51 and the lower air port 61, the lean liquid inlet 4, the lower liquid port 181 on the inner cylinder 13 and the inlet end 16 are communicated, the outlet end 15, the upper liquid port 18 on the inner cylinder 13, the lean liquid outlet 2 and the rich liquid outlet 3 are communicated, the left end of the outer cylinder 12 is flush with the left end of the inner cylinder 13 on the left side, and the right end of the outer cylinder 12 is flush with the right end of the inner cylinder 13 on the right side.
When in application, the method comprises the following steps: the vessel tail gas enters the outer cylinder 12 from the lower vent port 61 through the inlet end 16, the absorption solvent enters the outer cylinder 12 from the lean solution inlet 4 through the lower inner cylinder 13, the absorption solvent and the vessel tail gas are fused in the outer cylinder 12, after the fused gas-liquid mixed solution fully reacts in the reactor inner core 7, the absorption solvent absorbs carbon dioxide in the vessel tail gas, after the reaction is finished, the redundant absorption solvent flows out from the upper liquid port 18 of the upper inner cylinder 13 through the lean solution outlet 2, the reacted gas flows out from the outlet end 15 through the upper vent port 51, and the rich solution absorbing the carbon dioxide flows out from the outlet end 15 through the rich solution outlet 3.
The reaction zone A consists of a single outer barrel 12, when more reaction channels are needed, gas and liquid are directly contacted in the outer barrel, the needed pressure is smaller, the applicable tail gas carbon dioxide concentration is wider, and the carbon emission reduction efficiency and the removal rate are higher.
The above description is merely of preferred embodiments of the present invention, and the scope of the present invention is not limited to the above embodiments, but all equivalent modifications or variations according to the present disclosure will be within the scope of the claims.
Claims (9)
1. The ship tail gas carbon capture micro-channel reactor is characterized by comprising a shell (1), a lean solution outlet (2), a rich solution outlet (3), a lean solution inlet (4), an upper ring (5), an upper vent (51), a lower ring (6), a lower vent (61), a reactor inner core (7), a reaction zone (A), an upper sealing cover (10) and a lower sealing cover (11);
the reactor comprises a shell (1), wherein the lower end of the inner wall of the shell (1) is provided with a reactor inner core (7), the top of the reactor inner core (7) is provided with a reaction zone (A), the top of the shell (1) is connected with the bottom of an upper sealing cover (10), and the bottom of the shell (1) is connected with the top of a lower sealing cover (11);
The top of the upper sealing cover (10) is connected with the bottom of the upper ring (5), the left side of the upper ring (5) is connected with the lean solution outlet (2), the right side of the upper ring (5) is connected with the rich solution outlet (3), and the top of the upper ring (5) is provided with an upper vent (51);
The bottom of the lower sealing cover (11) is connected with the top of the lower ring (6), the right side of the lower ring (6) is connected with the lean solution inlet (4), and a lower vent (61) is formed in the bottom of the lower ring (6);
An upper air port (17) at the top of the reaction zone (A) is communicated with an upper air port (51), a lower air port (171) at the bottom of the reaction zone (A) is communicated with a lower air port (61), an upper liquid port (18) at the top of the reaction zone (A) is communicated with a lean liquid outlet (2), a lower liquid port (181) at the bottom of the reaction zone (A) is communicated with a lean liquid inlet (4), the upper air port (17) is communicated with a rich liquid outlet (3), a fusion cavity is arranged in the reaction zone (A), and gas and liquid are contacted in the fusion cavity;
the reaction zone (A) comprises a reaction channel (8) and a vertical pipe (9), a reaction port (91) is formed in the left side of the vertical pipe (9), two reaction ports (92) are formed in the right side of the vertical pipe (9), the vertical pipe (9) is communicated with the reaction channel (8) through the reaction port (91) and the two reaction ports (92), the fusion cavity is the reaction channel (8), and gas and liquid are in contact in the reaction channel (8);
The reaction channel (8) and the vertical pipe (9) are arranged on the reactor inner core (7), an upper air port (17), a lower air port (171) and an upper air port (51) and a lower air port (61) on the reaction channel (8) are communicated, an upper liquid port (18) and a lower liquid port (181) on the vertical pipe (9) are communicated with the lean liquid outlet (2) and the lean liquid inlet (4), and an upper air port (17) on the reaction channel (8) is communicated with the rich liquid outlet (3).
2. The marine exhaust carbon capture microchannel reactor of claim 1, wherein: the height of the first reaction port (91) is larger than that of the second reaction port (92).
3. The marine exhaust carbon capture microchannel reactor of claim 1, wherein: the reaction zone (A) comprises a spiral pipe (93) and two reaction channels (94), a three reaction port (95) is formed in the left side of the spiral pipe (93), a four reaction port (96) is formed in the right side of the vertical pipe (9), the spiral pipe (93) is communicated with the two reaction channels (94) through the three reaction port (95) and the four reaction port (96), the fusion cavity is the two reaction channels (94), and gas and liquid are in contact in the two reaction channels (94);
The two reaction channels (94) and the spiral tube (93) are arranged on the reactor inner core (7), an upper air port (17) and a lower air port (171) on the two reaction channels (94) are communicated with the upper air port (51) and the lower air port (61), an upper liquid port (18) and a lower liquid port (181) on the spiral tube (93) are communicated with the lean liquid outlet (2) and the lean liquid inlet (4), and an upper air port (17) on the two reaction channels (94) is communicated with the rich liquid outlet (3).
4. A marine exhaust gas carbon capture microchannel reactor according to claim 3, wherein: the two reaction channels (94) are composed of a plurality of spiral channels (941), all the spiral channels (941) are distributed on the side wall of the spiral tube (93) in a winding mode, all the spiral channels (941) are communicated with each other, and the spiral channels (941) are communicated with the two reaction channels (94) through three reaction ports (95) and four reaction ports (96).
5. A marine exhaust gas carbon capture microchannel reactor according to claim 3, wherein: the reaction zone (A) is composed of a group of spiral pipes (93) and two reaction channels (94) or a group of spiral pipes (93) and two reaction channels (94).
6. The marine exhaust carbon capture microchannel reactor of claim 1, wherein: the reaction zone (A) comprises an outer cylinder (12) and two inner cylinders (13), the two inner cylinders (13) are connected with the outer cylinder (12) through support plates (14), and the outer cylinder (12) is arranged on the reactor inner core (7).
7. The marine exhaust carbon capture microchannel reactor of claim 6, wherein: an outlet end (15) is arranged between the outer cylinder (12), the inner cylinder (13) and the upper two support plates (14), and an inlet end (16) is arranged between the outer cylinder (12), the inner cylinder (13) and the lower two support plates (14);
the upper air port (17) and the lower air port (171) on the inner cylinder (13) are communicated with the upper air port (51) and the lower air port (61), the lean liquid inlet (4), the lower liquid port (181) on the inner cylinder (13) and the inlet end (16) are communicated, and the outlet end (15) is communicated with the upper liquid port (18) on the inner cylinder (13), the lean liquid outlet (2) and the rich liquid outlet (3).
8. The marine exhaust carbon capture microchannel reactor of claim 7, wherein: the left end of the outer cylinder (12) is flush with the left end of the inner cylinder (13) at the left side, and the right end of the outer cylinder (12) is flush with the right end of the inner cylinder (13) at the right side.
9. The marine exhaust gas carbon capture microchannel reactor according to any one of claims 1 to 8, wherein: the number of the reactor cores (7) is one or more.
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| CN103372370A (en) * | 2012-04-23 | 2013-10-30 | 中国科学院大连化学物理研究所 | Method for absorbing carbon dioxide in multistage microchannel reaction system |
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| CN114367187A (en) * | 2022-01-25 | 2022-04-19 | 中国科学院理化技术研究所 | Carbon dioxide capture system |
| CN114432998A (en) * | 2022-01-29 | 2022-05-06 | 中太海碳(上海)环保科技有限公司 | Liquid jet carbon dioxide absorption reaction kettle |
| CN115414784A (en) * | 2022-09-22 | 2022-12-02 | 中国船舶集团有限公司第七一一研究所 | Device for capturing carbon dioxide in ship tail gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6869462B2 (en) * | 2002-03-11 | 2005-03-22 | Battelle Memorial Institute | Methods of contacting substances and microsystem contactors |
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| CN103372370A (en) * | 2012-04-23 | 2013-10-30 | 中国科学院大连化学物理研究所 | Method for absorbing carbon dioxide in multistage microchannel reaction system |
| CN106964244A (en) * | 2017-04-17 | 2017-07-21 | 武汉理工大学 | Pressure oxidation calcium traps the device and method of carbon dioxide |
| TW201900263A (en) * | 2017-05-26 | 2019-01-01 | 嘉藥學校財團法人嘉南藥理大學 | Device And Treatment Method For Carbon Dioxide Capture and Utilization |
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