TWM649947U - Adsorptive tubular membrane carbon dioxide capture system - Google Patents

Abstract

This invention is an adsorbent tube membrane carbon dioxide capture system. It mainly performs adsorption, desorption and cooling cycle operations through the design of a three-tower adsorption bed, and passes the desorbed carbon dioxide concentrated gas through the gas production bypass. The transportation pipeline is transported to the first gas storage tank, and the carbon dioxide concentrated gas is heated and raised through the heating device before entering the first adsorbent tube membrane module, the second adsorbent tube membrane module or the third The tubular hollow fiber tubular membrane adsorbent material is heated in the adsorbent tube membrane module. After reaching the set temperature, the gas production bypass delivery control valve is then closed, and the gas production delivery valve remains open. At this time, the vacuum pump starts to perform a heating vacuum desorption (TVSA) process on the first adsorbent tube film module, the second adsorbent tube film module or the third adsorbent tube film module, so as to use the temperature rise to The high vacuum degree optimizes the desorption efficiency and increases the gas production, so that the adsorption capacity can be increased during subsequent adsorption.

Description

Adsorbent membrane carbon dioxide capture system

This creation is about an adsorbent tube membrane carbon dioxide capture system, especially a system that optimizes desorption efficiency, increases gas production, and increases adsorption capacity, and is suitable for petrochemical plants, oil storage plants, technology Manufacturing plant area or similar area.

In recent years, the concentration of greenhouse gases in the atmosphere has increased dramatically due to man-made factors. The so-called man-made factors refer to the rapid increase in carbon dioxide emissions caused by human burning of fossil fuels since the industrial revolution, thereby intensifying the greenhouse gas emissions. effect.

At present, the current situation is that two granular zeolite tanks have been used to adsorb and desorb carbon dioxide, and the cycles are alternately operated. Vacuum desorption is used during desorption, and vacuum desorption is generally used. Using the normal temperature vacuum method, there is no additional heating to apply temperature. Therefore, the regeneration amount is only about 1/5 to 1/10 of the original maximum adsorption capacity, and the adsorption capacity cannot be increased.

In addition, most of the tubular membranes currently used for water treatment (see Figures 1 and 2) are made of polymer materials to make tubular membranes or thin films a. Polymer materials usually use PVDF, PES, PSf, etc. Its polymer material content is high, about 80~99.99% wt, and only a small amount of other additives are added, such as clouding agent, zeolite powder, etc. And its working principle is mainly to control the pore size and distribution of the membrane a to control the flow flux and the selectivity of the particle size of the material to be separated, so as to play the role of filtration and separation. The raw material liquid (referred to as raw liquid b) flows through the surface of the membrane a, and passes through the membrane a to form filtrate c through the pressure of the fluid, thereby achieving the effect of separation and filtration. The raw material liquid (referred to as raw liquid b) becomes It is the concentrated liquid d (as shown in Figure 2), and then transported to the next stage (not shown in the figure).

In addition, most of the application fields of the above-mentioned membranes include: general sewage or industrial wastewater treatment, RO pre-treatment, high-concentration organic wastewater treatment (such as landfill leachate, coking wastewater, aquaculture wastewater, fermentation wastewater), oily wastewater (such as emulsion wastewater) , cutting fluid wastewater, oil field produced water), electrophoretic paint wastewater treatment, electroplating wastewater treatment, high suspended solids wastewater, high hardness wastewater treatment and other fields.

Therefore, in view of the above shortcomings, the author hopes to propose an adsorbent membrane carbon dioxide capture system that improves the adsorption and desorption efficiency, so that users can easily operate and assemble it. They have devoted themselves to research, design and assembly to provide users with Convenience is the creative motivation that the creator wants to develop.

The main purpose of this creation is to provide an adsorbent tube membrane carbon dioxide capture system, which mainly performs adsorption, desorption and cooling cycle operations through the design of a three-tower adsorption bed, and passes the desorbed carbon dioxide concentrated gas through The gas production bypass conveying pipeline is transported to the first gas storage tank, and the carbon dioxide concentrated gas is heated through the heating device and then enters the first adsorbent tube film module and the second adsorbent tube film module. The tubular hollow fiber tubular membrane adsorbent material is heated in the group or the third adsorbent tube membrane module. After reaching the set temperature, the gas production bypass delivery control valve is closed, and the gas production delivery valve Still on, the vacuum pump starts to perform a heating vacuum desorption (TVSA) process on the first adsorbent tube film module, the second adsorbent tube film module or the third adsorbent tube film module, by temperature rise and vacuum degree, which optimizes the desorption efficiency and increases the gas production, so that the adsorption capacity can be increased during subsequent adsorption, thereby increasing the overall practicality.

Another purpose of this invention is to provide an adsorbent membrane carbon dioxide capture system, in which when the gas production bypass transmission control valve of the gas production bypass transmission pipeline is closed, the gas production transmission control of the gas production bypass transmission pipeline When the valve is opened, the gas production pipeline transports the carbon dioxide concentrated gas to a gas production collection place through heating and the vacuum pump performing a so-called temperature vaccum swing adsorption (TVSA). The gas production collection place is any one of a carbon dioxide concentration storage tank, a carbon dioxide concentration pool, and a carbon dioxide concentration concentration tank, and the concentration of the carbon dioxide concentration gas in the gas production pipeline will not be diluted after multiple cycles. , so the purity of the gas produced is good, and more concentrated carbon dioxide gas can be captured for subsequent application or storage, thereby increasing the overall usability.

Another purpose of this invention is to provide an adsorbent tube membrane carbon dioxide capture system, and the air supply and transportation pipeline system has two implementation modes, wherein the first implementation mode is that the air supply and transportation pipeline is directly connected to a second The gas source pipeline is connected, and the second gas source pipeline transports a second gas, and the second gas system is either nitrogen or air, so that the second gas can be transmitted through the air supply pipeline. Enter the first adsorbent tube film module, the second adsorbent tube film module or the third adsorbent tube film module for cooling. Another second embodiment is that the air supply pipeline and the air outlet pipeline are connected to a second gas storage tank, and the second gas storage tank is connected to a second gas source pipeline, and the second gas storage tank is connected to a second gas source pipeline. The gas source pipeline transports a second gas, and the second gas system is either nitrogen or air, so that it can be recycled through the second gas storage tank. When the second gas in the second gas storage tank When the gas is insufficient, it is replenished by the second gas source pipeline, thereby increasing the overall operability.

In order to further understand the features, characteristics and technical content of this creation, please refer to the following detailed description and drawings of this creation. However, the attached drawings are only for reference and illustration and are not intended to limit this creation.

a: film

b:Original solution

c:filtrate

d:Concentrate

A: Source feed gas

B:Concentrated gas

1: The first adsorbent tube film module

2: The second adsorbent tube film module

3: The third adsorbent tube film module

4: Tubular hollow fiber tubular membrane adsorbent material

101:First air intake pipe

1011: First air intake control valve

102:First exhaust pipe

1021: First exhaust control valve

103:First hot gas pipeline

1031: First hot gas control valve

104:The first gas production pipeline

1041: The first gas production control valve

105:First air supply duct

1051: First air supply control valve

106:First air outlet duct

1061: First air outlet control valve

201:Second air intake pipe

2011: Second air intake control valve

202:Second exhaust pipe

2021: Second exhaust control valve

203:Second hot gas pipeline

2031: Second hot gas control valve

204: Second gas production pipeline

2041: Second gas production control valve

205: Second air supply duct

2051: Second air supply control valve

206: Second air outlet duct

2061: Second air outlet control valve

301:Third air intake pipe

3011:Third air intake control valve

302:Third exhaust pipe

3021:Third exhaust control valve

303: The third hot gas pipeline

3031: The third hot gas control valve

304: The third gas production pipeline

3041: The third gas production control valve

305:Third air supply duct

3051: Third air supply control valve

306: The third air outlet pipe

3061: The third air outlet control valve

401: Tunnel

402: Adsorption layer

403: Membrane body

10:Gas delivery pipeline

11: Gas delivery control valve

20:Exhaust delivery pipeline

21:Exhaust equipment

30:Hot gas delivery pipeline

31:Heating device

40:Gas production pipeline

41: Vacuum pump

42: Gas production control valve

50: Air supply pipeline

51: Air supply and delivery control valve

52:Air supply equipment

60: Air outlet conveying pipeline

70: First gas storage tank

71: Gas production bypass pipeline

711: Gas production bypass delivery control valve

72: First gas delivery pipeline

80: Second gas storage tank

90: Second gas source pipeline

91: Second gas source control valve

Figure 1 is a schematic diagram of the working principle of a conventional tubular membrane.

Figure 2 is a schematic diagram of a conventional stock solution being transformed into a concentrated solution.

Figure 3 is a schematic diagram of the system architecture in which the air supply pipeline is directly connected to the second gas source pipeline.

Figure 4 is a schematic diagram of another system architecture in which the air supply pipeline is directly connected to the second gas source pipeline.

Figure 5 is a schematic diagram of the system architecture in which the gas production bypass transmission control valve of the gas production bypass transmission pipeline is opened and the gas production transmission control valve of the gas production transmission pipeline is closed.

Figure 6 is a schematic diagram of the system architecture in which the gas production bypass transmission control valve of the gas production bypass transmission pipeline is closed and the gas production transmission control valve of the gas production transmission pipeline is opened.

Figure 7 is a schematic diagram of the adsorption principle of the membrane.

Figure 8 is a schematic diagram of the three-dimensional appearance of the adsorption layer and the pores adjacent to each other.

Figure 9 is a schematic diagram of the three-dimensional appearance of the holes between the adsorption layers.

Please refer to Figures 3 to 9, which are schematic diagrams of embodiments of this invention. The best way to implement the adsorbent membrane carbon dioxide capture system of this invention is to be used in petrochemical plants, oil storage plants, technology manufacturing plants or similar areas, mainly to optimize the desorption efficiency, and The gas production increases and the adsorption capacity increases.

The adsorbent tube membrane carbon dioxide capture system of this invention is used to process gases containing carbon dioxide to be processed. It mainly includes a first adsorbent tube membrane module 1, a second adsorbent tube membrane module 2, and a first adsorbent tube membrane module. Three adsorbent tube film modules 3, a gas transportation pipeline 10, an exhaust transportation pipeline 20, a hot gas transportation pipeline 30, a gas production transportation pipeline 40, an air supply transportation pipeline 50, and an air outlet transportation The pipeline 60 and a first gas storage tank 70 (as shown in Figures 3 to 6), and through the first adsorbent tube film module 1, the second adsorbent tube film module 2 and the third The three-tower adsorption bed of the adsorption tubular membrane module 3 is designed to perform cyclic operations of adsorption, desorption and cooling. The first adsorption tubular membrane module 1, the second adsorption tubular membrane module 2 and the The third adsorbent tubular membrane module 3 is filled with a plurality of tubular hollow fiber tubular membrane adsorbent materials 4 (as shown in Figures 3 to 6), with a filling rate of 75% to 95 %, mainly to increase its adsorption area. In addition, the tubular hollow fiber tubular membrane adsorbent 4 is any one or a combination of zeolite (such as X-type zeolite (for example, 13X)), anion exchange resin, and metal organic frameworks (Metal Organic Frameworks: MOF).

The tubular hollow fiber tubular membrane adsorbent material 4 includes at least one pore 401 and at least one adsorption layer 402 (as shown in Figures 8 to 9), and the at least one adsorption layer 402 surrounds the at least one adsorption layer. Pore channel 401, in which the adsorption layer 402 is adjacent to the pore channel 401 (as shown in Figure 8). A plurality of pore channels 401 can also be provided between the adsorption layers 402 (as shown in Figure 9). The number of the pores 401 and the number of the adsorption layers 402 is not limited to the present invention, and gas or liquid is allowed to pass through the at least one pore 401, wherein the inner diameter of the at least one pore 401 is 0.3 millimeters (mm). ) to 1.0 millimeters (mm), designed to suit different applications. In addition, the tubular hollow fiber tubular membrane adsorbent material The diameter of 4 is D1, the opening diameter of the at least one channel 401 is d1, which satisfies the condition 1<D1/d1<99, and the tubular hollow fiber tubular membrane adsorbent material 4 can be arranged into a rectangular body (not shown in the figure) (shown), a sector (not shown), or a cylinder, and are combined through the above shapes to minimize the gaps between the tubular hollow fiber tubular membrane adsorbent materials 4 combinations, wherein the The porosity (porosity) of the tubular hollow fiber tubular membrane adsorbent material 4 is 20%-80%, and the so-called porosity (porosity) is the ratio of the volume of the pores in the hollow part to the total volume of the material. Only through the pores can the Gas or liquid has entered. In addition, the specific surface area of the tubular hollow fiber tubular membrane adsorbent material 4 is greater than 500 square meters/cubic meter (m2/m3), where the specific surface area refers to the surface area per unit volume of the porous solid material, and the so-called Surface area refers to the internal surface area for better adsorption efficiency.

Furthermore, the material of the tubular hollow fiber tubular membrane adsorbent 4 at least includes an amine-modified anion exchange resin material and a polymer material (not shown), which is mainly made of the amine-modified anion exchange resin. It is made of ester material and the polymer material, wherein the polymer material is polystyrene, polyether styrene, polyvinylidene fluoride, polystyrene, polyacrylonitrile, cellulose acetate, cellulose diacetate, polyphenylene glycol Amine, polyetherimide, polyamide, polyvinyl alcohol, polylactic acid, polyglycolic acid, polylactic acid-glycolic acid, polycaprolactone, polyvinylhydropyrrolidone, ethylene-vinyl alcohol, polydimethyl silicone At least one of the group consisting of oxane, polytetrafluoroethylene and cellulose acetate. In addition, the amine-modified anion exchange resin is capable of mutual exchange with negatively charged ions. According to the reversible equilibrium principle of ion exchange reaction, the combined exchange ions are either hydroxide (OH ^- ) or carbonate (CO ₃ ^-2 ). The replacement reaction of ion exchange resin can make the resin Revert to original state. The amine-modified anion exchange resin material is composed of primary amine (-NH ₂ ), secondary amine (-NHR), tertiary amine (-NR ₂ ), and quaternary ammonium salt (-NR ₃ OH). Anion exchange resin modified by any one or a combination thereof, and the so-called modification means changing the characteristics of the material and improving the performance through physical processes such as heating, cooling, ion bombardment and implantation, and chemical treatments. The so-called amine group (-NH ₂ ) is the functional group of amine, and amines can also be divided into primary amines (-NH ₂ ) and secondary amines (-NHR) according to the number of substituted hydrogen atoms on the nitrogen molecules. ), tertiary amine (-NR ₂ ), quaternary ammonium salt (-NR ₃ OH), etc., among which the primary amine (-NH ₂ ), secondary amine (-NHR) and tertiary amine (-NR ₂ ), etc. They are weakly alkaline functional groups, which can dissociate into OH ^- in water and become weakly alkaline. The positively charged groups of this resin can adsorb and combine with anions in the solution, thereby producing anion exchange. In addition, the quaternary ammonium salt (-NR ₃ OH) is a strong basic functional group, which can dissociate OH ^- in water and become strongly alkaline. The positively charged groups of this resin can adsorb and combine with anions in the solution, thereby producing anion exchange.

In addition to the above-mentioned polymer materials, the tubular hollow fiber tubular membrane adsorbent material 4 used in this invention also needs to be added with at least one adsorbent (not shown in the figure), such as zeolite powder, resin, activated carbon, etc. , and the adsorbent is in the form of powder, micron-sized, and the average particle size ranges from 1 to 99 microns, of which one micron is equal to 1x10 ^-6 meters. In addition, the membrane body 403 of the tubular hollow fiber tubular membrane adsorbent material 4 is made by a dry-wet spinning phase transfer process. The structure of the membrane body 403 of the tubular hollow fiber tubular membrane adsorbent material 4 is similar to a sponge or foam. It has a solid structure and has connected micron-scale small and medium-sized pores, and the gas molecules are sufficient to move and diffuse between the micron-sized and medium-sized pores, where the gas molecules are sub-nanometer or Ångström (Ångström, symbol Å) in size. .

Furthermore, the polymer material content is less than that of the adsorbent. The polymer material accounts for 5%~55%wt, while the adsorbent (such as zeolite) accounts for 95%~45%wt. Generally speaking, the better ratio of polymer material Accounting for 10%~30%wt. The tubular hollow fiber tubular membrane adsorbent material 4 used in this invention is mainly used to separate or purify mixed gases containing two or more gases through the principle of adsorption. The principle is that the source feed gas A flows through the tubular hollow fiber tubular membrane and is adsorbed The surface of the membrane body 403 of the material 4 is output as a concentrated gas B, and through the diffusion of the source feed gas A when it flows through the surface of the membrane body 403 of the tubular hollow fiber tubular membrane adsorbent material 4, some of One gas or a plurality of gases are easily adsorbed by the adsorbent contained in the membrane body 403 of the tubular hollow fiber tubular membrane adsorbent material 4, while other gas components are less likely to be adsorbed. Therefore, the parts that are more likely to be adsorbed The gas will be adsorbed on the adsorbent in the membrane body 403 of the tubular hollow fiber tubular membrane adsorbent material 4 (as shown in Figure 7), thereby achieving the effect of separation or purification. The factors that determine the adsorption of feed gas A from this source include the pore size of the adsorbent, gas molecule size, van der Waals force, polarity, hydrophilicity or hydrophobicity of the adsorbent, etc. The flow rate of the source feed gas A passing through the surface of the membrane body 403 of the tubular hollow fiber tubular membrane adsorbent material 4 is usually controlled at 0.01m/s~1m/s. Sometimes it can be adjusted depending on the situation when the processing efficiency is low. to a maximum of 2.5m/s.

In addition, the first adsorbent tube film module 1 is provided with a first air inlet pipeline 101, a first exhaust pipeline 102, a first hot gas pipeline 103, a first gas production pipeline 104, a first Air supply pipe 105 and a first air outlet pipe 106. The second adsorbent tube film module 2 is provided with a second air inlet pipeline 201, a second exhaust pipeline 202, a second hot gas pipeline 203, a second gas production pipeline 204, a second Air supply duct 205 and a second air outlet duct 206. And the third adsorbent tube film module 3 is provided with a third air inlet pipeline 301, a third exhaust pipeline 302, a third hot gas pipeline 303, a third gas production pipeline 304, a third Air supply duct 305 and a third air outlet duct 306 (as shown in Figures 3 to 6). The first air intake pipeline 101 is provided with a first air intake control valve 1011, the second air intake pipeline 201 is provided with a second air intake control valve 2011, and the third air intake pipeline 301 is provided with a The third air intake control valve 3011 (as shown in Figure 3 to Figure 3 6), and the first air intake control valve 1011, the second air intake control valve 2011, and the third air intake control valve 3011 can be used as any one of a check valve, an electric valve, and a pneumatic valve. , enabling the first air intake pipeline 101, the second air intake pipeline 201 and The gas flow direction of the third air intake pipe 301. In addition, the first exhaust pipeline 102 is provided with a first exhaust control valve 1021, the second exhaust pipeline 202 is provided with a second exhaust control valve 2021, and the third exhaust pipeline 302 is provided with a The third exhaust control valve 3021 (as shown in Figures 3 to 6), and the first exhaust control valve 1021, the second exhaust control valve 2021, and the third exhaust control valve 3021 can be used It is any one of a check valve, an electric valve, and a pneumatic valve, enabling the first exhaust gas to be controlled through the first exhaust control valve 1021, the second exhaust control valve 2021, and the third exhaust control valve 3021. The gas flow direction of the gas pipeline 102, the second exhaust pipeline 202 and the third exhaust pipeline 302.

In addition, the first hot gas pipeline 103 is provided with a first hot gas control valve 1031, the second hot gas pipeline 203 is provided with a second hot gas control valve 2031, and the third hot gas pipeline 303 is provided with a third hot gas control valve. 3031 (as shown in Figures 3 to 6), and the first hot gas control valve 1031, the second hot gas control valve 2031, and the third hot gas control valve 3031 can be used as check valves, electric valves, pneumatic valves, etc. Any one of the valves can control the first hot gas pipeline 103, the second hot gas pipeline 203 and The gas flow direction of the third hot gas pipeline 303. In addition, the first gas production pipeline 104 is provided with a first gas production control valve 1041, and the second gas production pipeline 204 is provided with a second gas production control valve 2041, the third gas production pipeline 304 is provided with a third gas production control valve 3041 (as shown in Figures 3 to 6), and the first gas production control valve 1041. The second gas production control valve 2041 and the third gas production control valve 3041 can be used as any one of a check valve, an electric valve, and a pneumatic valve to enable the first gas production control valve 1041 and the The second gas production control valve 2041 and the third gas production control valve 3041 control the gas flow direction of the first gas production pipeline 104, the second gas production pipeline 204 and the third gas production pipeline 304. In addition, the first air supply pipe 105 is provided with a first air supply control valve 1051, the second air supply pipe 205 is provided with a second air supply control valve 2051, and the third air supply pipe 305 is provided with a third air supply control valve. 3051 (as shown in Figures 3 to 6), and the first air supply control valve 1051, the second air supply control valve 2051, and the third air supply control valve 3051 can be used as check valves, electric valves, pneumatic valves, etc. Any one of the valves can control the first air supply pipeline 105, the second air supply pipeline 205 and The gas flow direction of the third air supply pipe 305. In addition, the first air outlet pipe 106 is provided with a first air outlet control valve 1061, the second air outlet pipe 206 is provided with a second air outlet control valve 2061, and the third air outlet pipe 306 is provided with a first air outlet control valve 1061. There is a third air outlet control valve 3061 (as shown in Figures 3 to 6), and the first air outlet control valve 1061, the second air outlet control valve 2061, and the third air outlet control valve 3061 can Any one of a check valve, an electric valve, and a pneumatic valve can be used to control the first air outlet control valve 1061, the second air outlet control valve 2061, and the third air outlet control valve 3061. The gas flow direction of the air outlet pipe 106, the second air outlet pipe 206 and the third air outlet pipe 306.

In addition, the gas transport pipeline 10 is connected to the first gas inlet pipeline 101, the second gas inlet pipeline 201 and the third gas inlet pipeline 301 respectively, wherein the gas transport pipeline 10 transports carbon dioxide. (CO ₂ ) gas to be processed. In addition to carbon dioxide (CO ₂ ), the gas to be processed containing carbon dioxide (CO ₂ ) also includes other gases such as oxygen (O ₂ ) and nitrogen (N ₂ ). The above is not the limit, so as to transport the gas to be treated containing carbon dioxide (CO ₂ ) to the first adsorbent tube via the first air inlet pipeline 101 , the second air inlet pipeline 201 and the third air inlet pipeline 301 respectively. The membrane module 1, the second adsorbent tube membrane module 2 or the third adsorbent tube film module 3 is used for adsorption, and the gas delivery pipeline 10 is equipped with a gas delivery control valve 11 (as shown in Figure 3 to Figure 6), and the gas delivery control valve 11 can be used as any one of a check valve, an electric valve, and a pneumatic valve, so that the gas delivery pipeline 10 can be controlled through the gas delivery control valve 11 gas flow direction. In addition, the exhaust pipe 20 is connected to the first exhaust pipe 102, the second exhaust pipe 202 and the third exhaust pipe 302 respectively, and the exhaust pipe 20 is connected to An exhaust device 21 is connected, wherein the exhaust device 21 is any one of a chimney, an exhaust pipe, or other exhaust facilities, and is not limited to the embodiments of the present invention. The adsorbed tube film module 1, the second adsorbent tube film module 2 or the third adsorbent tube film module 3 sends an adsorbed gas through the first exhaust pipe 102 and the third adsorbent tube film module 3 respectively after adsorption. The second exhaust pipeline 202 or the third exhaust pipeline 302 is delivered to the exhaust delivery pipeline 20 (as shown in Figures 3 to 6), and then is exhausted to the atmosphere through the exhaust equipment 21 or other suitable location.

In addition, the hot gas delivery pipeline 30 is connected to the first hot gas pipeline 103, the second hot gas pipeline 203 and the third hot gas pipeline 303 respectively, and the hot gas delivery pipeline 30 is provided with a heating device 31 ( As shown in Figures 3 to 6), the heating device Set 31 is any one of gas heater, electric heater, and thermal oil heater. In addition, the gas production pipeline 40 is connected to the first gas production pipeline 104, the second gas production pipeline 204 and the third gas production pipeline 304 respectively, and the gas production pipeline 40 is equipped with a vacuum pump 41 And a gas production delivery control valve 42 (as shown in Figures 3 to 6), and the gas production delivery control valve 42 can be used as a check valve, an electric valve, or a pneumatic valve to allow passage The produced gas delivery control valve 42 controls the gas flow direction of the produced gas delivery pipeline 40 . In addition, the first gas storage tank 70 is provided with a gas production bypass pipeline 71 and a first gas pipeline 72 (as shown in Figures 3 to 6). The first gas pipeline 72 is Connected to the heating device 31, the produced gas bypass pipeline 71 is connected to the produced gas pipeline 40. The produced gas bypass pipeline 71 is provided with a produced gas bypass transport control valve 711. The gas production bypass delivery control valve 711 can be any one of a check valve, an electric valve, and a pneumatic valve, so that the production gas bypass delivery control valve 711 can control the production gas bypass delivery pipeline 71 gas flow direction.

Furthermore, when the gas production bypass transmission control valve 711 of the gas production bypass transmission pipeline 71 is opened and the gas production transmission control valve 42 of the gas production transmission pipeline 40 is closed (as shown in Figure 5), the The first adsorption membrane module 1, the second adsorption membrane module 2 or the third adsorption membrane module 3 are used for desorption, and after desorption, a concentrated carbon dioxide gas is generated, and the desorption The attached carbon dioxide concentrated gas system is respectively transported to the gas production pipeline 40 through the first gas production pipeline 104, the second gas production pipeline 204 or the third gas production pipeline 304, and the gas production pipeline 40 40 is used to transport the carbon dioxide concentrated gas to the first gas through the gas production bypass pipeline 71 by heating and the vacuum pump 41 performs a so-called temperature vaccum swing adsorption (TVSA) in a vacuum manner. Gas storage tank 7 0 for storage, and the first gas storage tank 70 transports the carbon dioxide concentrated gas to the heating device 31 through the first gas delivery pipeline 72 for heating and temperature raising (such as 100°C, 120°C or other higher temperatures or The temperature is lower than 100°C (not limited to the instructions), and after heating and heating, a heating gas is sent out. The heating gas system is a carbon dioxide concentrated gas with a temperature, and the heating gas system passes through the first hot gas pipeline 103, the third The two hot gas pipelines 203 or the third hot gas pipeline 303 are respectively transported to the first adsorbent tube film module 1, the second adsorbent tube film module 2 or the third adsorbent tube film module 3. The tubular hollow fiber tubular membrane adsorbent material 4 is heated because the first adsorbent tube membrane module 1, the second adsorbent tube membrane module 2 or the third adsorbent tube membrane module 3 are The heating gas enters, so the inside of the first adsorbent tube film module 1, the second adsorbent tube film module 2 or the third adsorbent tube film module 3 is also heated, so that the desorption efficiency can be maximized. It is optimized and the gas production is increased, so that the adsorption capacity can be increased during subsequent adsorption.

In addition, the heating gas system is a concentrated carbon dioxide gas with a temperature, and is used for desorption to generate the concentrated carbon dioxide gas, which is then circulated to the heating device 31 through the gas production bypass pipeline 71 for heating and temperature raising. The temperature of the concentrated carbon dioxide gas and the concentration of the concentrated carbon dioxide gas will not be diluted during the circulation process, so the purity of the produced gas is good, and more concentrated carbon dioxide gas can be captured. After a period of time is set or the carbon dioxide concentrated gas reaches the set temperature, the gas production bypass transmission control valve 711 of the gas production bypass transmission pipeline 71 is closed, and the production gas transmission pipeline 40 The gas delivery control valve 42 is opened (as shown in Figure 6), allowing the gas production pipeline 40 to perform so-called temperature vaccum swing adsorption (TVSA) through heating and vacuuming by the vacuum pump 41. ) to transport the carbon dioxide concentrated gas to a gas production collection place (not shown in the figure), where the gas production collection place is a carbon dioxide concentration gas storage barrel, a carbon dioxide concentration pool, Either of the carbon dioxide concentration concentration tanks for subsequent use or storage.

Furthermore, when the first adsorbent tube film module 1, the second adsorbent tube film module 2 or the third adsorbent tube film module 3 are used for cooling, the air outlet conveying pipeline 60 is They are respectively connected to the first air outlet duct 106, the second air outlet duct 206 and the third air outlet duct 306, and the air supply conveying pipeline 50 is respectively connected to the first air supply duct 105, the third air outlet duct 306. The second air supply pipe 205 and the third air supply pipe 305 are connected, wherein the air supply pipe 50 is provided with an air supply control valve 51 (as shown in Figures 3 to 6), and the air supply control valve 51 is The valve 51 can be any one of a check valve, an electric valve, and a pneumatic valve, so that the gas flow direction of the air supply pipeline 50 can be controlled through the air supply control valve 51 .

In addition, the air supply pipeline 50 has two embodiments. In the first embodiment (as shown in Figures 3 and 4), the air supply pipeline 50 is directly connected to a second gas source pipeline 90. connected, and the second gas source pipeline 90 transports a second gas, and the second gas system is either nitrogen or air, and the second gas source pipeline 90 is equipped with a second gas source control Valve 91, and the second gas source control valve 91 can be used as any one of a check valve, an electric valve, and a pneumatic valve, so that the second gas source pipeline can be controlled through the second gas source control valve 91 90 gas flow direction. Let the second gas in the second gas source pipeline 90 enter the air supply pipeline 50 and be transported to the first air supply pipeline 105, the second air supply pipeline 205 or The third air supply duct 305 then enters the first adsorbent tube film module 1 and the second adsorption film module 1 through the first air supply duct 105, the second air supply duct 205 or the third air supply duct 305 respectively. Cooling is performed in the absorbent tubular film module 2 or the third adsorbent tubular film module 3, and in the cooling The cooled second gas is transported to the air outlet conveying pipe 60 through the first air outlet pipe 106, the second air outlet pipe 206 or the third air outlet pipe 306, and then passes through the air outlet pipe 60. The air is discharged through the air delivery pipe 60. The above-mentioned air supply pipeline 50 is provided with an air supply equipment 52, and the air supply equipment 52 is any one of an air pump and an air blower, so as to push the second gas in the air supply pipeline 50 to the air supply pipeline 50. The first air supply duct 105, the second air supply duct 205 or the third air supply duct 305 is then transported to the first adsorbent tube film module 1, the second adsorbent tube film module 2 or the The third adsorbent tube film module 3 is used for cooling.

In the second embodiment, the air supply pipeline 50 and the air outlet pipeline 60 are connected to a second gas storage tank 80 (as shown in Figures 5 and 6). The second gas storage tank 80 is The tank 80 is connected to a second gas source pipeline 90, and the second gas source pipeline 90 transports a second gas, and the second gas system is either nitrogen or air, wherein the second gas source The pipeline 90 is provided with a second gas source control valve 91, and the second gas source control valve 91 can be used as any one of a check valve, an electric valve, and a pneumatic valve to enable control through the second gas source. The valve 91 controls the gas flow direction of the second gas source pipeline 90 . The second gas is allowed to enter the second gas storage tank 80 through the second gas source pipeline 90 for storage, and the second gas source control valve is closed after being stored in a certain capacity or meeting the capacity of the storage tank. , to use the second gas stored in the second gas storage tank 80 . Then open the air supply control valve 51 on the air supply pipeline 50 to allow the second gas in the second gas storage tank 80 to enter the air supply pipeline 50 and be transported through the air supply pipeline 50 to the first air supply duct 105, the second air supply duct 205 or the third air supply duct 305, and then from the first air supply duct 105, The second air supply duct 205 or the third air supply duct 305 enters the first adsorbent tube film module 1 , the second adsorbent tube film module 2 or the third adsorbent tube film module 3 respectively. It is used for cooling, and after cooling, the second gas is transported to the air outlet conveying pipe 60 through the first air outlet pipe 106, the second air outlet pipe 206 or the third air outlet pipe 306. inside, and then sent back to the second gas storage tank 80 through the air outlet pipeline 60, so that it can be recycled and used through the second gas storage tank 80. When the third gas in the second gas storage tank 80 When the second gas is insufficient, it is replenished by the second gas source pipeline 90, thereby increasing the overall operability. The above-mentioned air supply pipeline 50 is provided with an air supply equipment 52, and the air supply equipment 52 is any one of an air pump and an air blower, so as to push the second gas in the air supply pipeline 50 to the air supply pipeline 50. The first air supply duct 105, the second air supply duct 205 or the third air supply duct 305 is then transported to the first adsorbent tube film module 1, the second adsorbent tube film module 2 or the The third adsorbent tube film module 3 is used for cooling.

Furthermore, this invention performs adsorption through the design of a three-tower adsorption bed of the first adsorbent tubular membrane module 1, the second adsorbent tubular membrane module 2 and the third adsorbent tubular membrane module 3. The cycle operation of desorption and cooling, and the cycle operation of adsorption, desorption and cooling are run at the same time, and at a set time (the set time is 5 minutes, 10 minutes, 20 minutes, 30 minutes, 40 minutes, etc., regardless of After the above time is limited), the first adsorbent tube film module 1, the second adsorbent tube film module 2 and the third adsorbent tube film module 3 sequentially perform adsorption, desorption and cooling. switch.

Through the above detailed description, those who are familiar with this art can understand that this creation can indeed achieve the aforementioned purpose, and it has indeed complied with the provisions of the patent law and is ready to file a patent application.

However, the above are only preferred embodiments of this invention and should not be used to limit the scope of implementation of this invention; therefore, any application for patent scope and creation description based on this invention Simple equivalent changes and modifications should still be within the scope of this creative patent.

1: The first adsorbent tube film module

2: The second adsorbent tube film module

3: The third adsorbent tube film module

4: Tubular hollow fiber tubular membrane adsorbent material

101:First air intake pipe

1011: First air intake control valve

102:First exhaust pipe

1021: First exhaust control valve

103:First hot gas pipeline

1031: First hot gas control valve

104:The first gas production pipeline

1041: The first gas production control valve

105:First air supply duct

1051: First air supply control valve

106:First air outlet duct

1061: First air outlet control valve

201:Second air intake pipe

2011: Second air intake control valve

202:Second exhaust pipe

2021: Second exhaust control valve

203:Second hot gas pipeline

2031: Second hot gas control valve

204: Second gas production pipeline

2041: Second gas production control valve

205: Second air supply duct

2051: Second air supply control valve

206: Second air outlet duct

2061: Second air outlet control valve

301:Third air intake pipe

3011:Third air intake control valve

302:Third exhaust pipe

3021:Third exhaust control valve

303: The third hot gas pipeline

3031: The third hot gas control valve

304: The third gas production pipeline

3041: The third gas production control valve

305:Third air supply duct

3051: Third air supply control valve

306: The third air outlet pipe

3061: The third air outlet control valve

10:Gas delivery pipeline

11: Gas delivery control valve

20:Exhaust delivery pipeline

21:Exhaust equipment

30:Hot gas delivery pipeline

31:Heating device

40:Gas production pipeline

41: Vacuum pump

42: Gas production control valve

50: Air supply pipeline

51: Air supply and delivery control valve

52:Air supply equipment

60: Air outlet conveying pipeline

70: First gas storage tank

71: Gas production bypass pipeline

711: Gas production bypass delivery control valve

72: First gas delivery pipeline

90: Second gas source pipeline

91: Second gas source control valve

Claims (25)

An adsorbent membrane carbon dioxide capture system used to treat gases containing carbon dioxide to be treated, including: A first adsorbent tube film module, the first adsorbent tube film module is provided with a first air inlet pipeline, a first exhaust pipeline, a first hot gas pipeline, and a first gas production pipeline , a first air supply duct and a first air outlet duct; A second adsorbent tube film module, the second adsorbent tube film module is provided with a second air inlet pipeline, a second exhaust pipeline, a second hot gas pipeline, and a second gas production pipeline , a second air supply duct and a second air outlet duct; A third adsorbent tube film module, the third adsorbent tube film module is provided with a third air inlet pipeline, a third exhaust pipeline, a third hot gas pipeline, and a third gas production pipeline , a third air supply duct and a third air outlet duct; A gas delivery pipeline, the gas delivery pipeline is connected to the first air inlet pipeline, the second air inlet pipeline and the third air inlet pipeline respectively; An exhaust delivery pipeline, the exhaust delivery pipeline is connected to the first exhaust pipeline, the second exhaust pipeline and the third exhaust pipeline respectively; A hot gas transport pipeline, which is connected to the first hot gas pipeline, the second hot gas pipeline and the third hot gas pipeline respectively, and the hot gas transport pipeline is equipped with a heating device; A gas production pipeline, the gas production pipeline is connected to the first gas production pipeline, the second gas production pipeline and the third gas production pipeline respectively, the gas production pipeline is equipped with a vacuum pump and a gas production delivery control valve; An air supply pipeline, the air supply pipeline is connected to the first air supply pipeline, the second air supply pipeline and the third air supply pipeline respectively; An air outlet duct, the air outlet duct is connected to the first air outlet duct, the second air outlet duct and the third air outlet duct respectively; and A first gas storage tank. The first gas storage tank is provided with a gas production bypass pipeline and a first gas transportation pipeline. The first gas transportation pipeline is connected to the heating device. The gas production bypass pipeline The general transmission pipeline is connected to the gas production pipeline, and the gas production bypass transmission pipeline is equipped with a gas production bypass transmission control valve. The adsorbent tube film carbon dioxide capture system as described in item 1 of the patent application, wherein the first adsorbent tube film module, the second adsorbent tube film module and the third adsorbent tube film module are It is further filled with a plurality of tubular hollow fiber tubular membrane adsorbent materials. The adsorbent tubular membrane carbon dioxide capture system described in item 2 of the patent application, wherein the tubular hollow fiber tubular membrane adsorbent material is further any one or a combination of zeolite, anion exchange resin, and metal-organic framework materials. . For the adsorbent tubular membrane carbon dioxide capture system described in item 2 of the patent application, the tubular hollow fiber tubular membrane adsorbent material further includes at least one pore channel and at least one adsorption layer, and the adsorption layer further includes an amine. Based on modified anion exchange resin material and a polymer material. The adsorbent tubular membrane carbon dioxide capture system described in item 4 of the patent application, wherein the tubular hollow fiber tubular membrane adsorbent material further has a diameter of D1, and the at least one pore further has an opening diameter of d1, where The condition is 1<D1/d1<99. For example, in the adsorbent tubular membrane carbon dioxide capture system described in item 2 of the patent application, the tubular hollow fiber tubular membrane adsorbent material further has a filling rate of 75% to 95%. For example, in the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the gas transmission pipeline further transports the gas to be treated containing carbon dioxide, and the gas transport pipeline is equipped with a gas transport control valve. For the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the first air inlet pipeline is further provided with a first air inlet control valve, and the second air inlet pipeline is further provided with a first air inlet control valve. There are two air intake control valves, and the third air intake pipeline is further provided with a third air intake control valve. For the adsorbent membrane carbon dioxide capture system described in item 1 of the patent application, the exhaust gas delivery pipeline is further connected to an exhaust device. For the adsorbent membrane carbon dioxide capture system described in item 1 of the patent application, the first exhaust pipeline is further provided with a first exhaust control valve, and the second exhaust pipeline is further provided with a first exhaust control valve. There are two exhaust control valves, and the third exhaust pipeline is further provided with a third exhaust control valve. For the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the first hot gas pipeline is further provided with a first hot gas control valve, and the second hot gas pipeline is further provided with a second hot gas control valve. valve, the third hot gas pipeline system is further provided with a third hot gas control valve. For the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the heating device is any one of a gas heater, an electric heater, and a heat medium oil heater. For example, in the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the first gas production pipeline is further provided with a first gas production control valve, and the second gas production pipeline is A second gas production control valve is further provided, and the third gas production pipeline is further provided with a third gas production control valve. For the adsorbent tube film carbon dioxide capture system described in item 1 of the patent application, the first air supply duct is further provided with a first air supply control valve, and the second air supply duct is further provided with a second air supply control valve. valve, the third air supply pipeline system is further provided with a third air supply control valve. For example, in the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the air supply and delivery pipeline is further equipped with an air supply and delivery control valve. The adsorbent tube film carbon dioxide capture system described in item 1 of the patent application, wherein the air supply pipeline is further connected to a second gas source pipeline, and the second gas source pipeline transports a second gas , the second gas system is either nitrogen or air. For the adsorbent membrane carbon dioxide capture system described in item 16 of the patent application, the second gas source pipeline is further provided with a second gas source control valve. In the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the air supply pipeline and the air outlet pipeline are further connected to a second gas storage tank so that they can be recycled. The adsorbent tube membrane carbon dioxide capture system described in item 18 of the patent application, wherein the second gas storage tank is further connected to a second gas source pipeline, and the second gas source pipeline delivers a second gas , the second gas system is either nitrogen or air. For the adsorbent membrane carbon dioxide capture system described in item 19 of the patent application, the second gas source pipeline is further provided with a second gas source control valve. For example, in the adsorbent tube film carbon dioxide capture system described in item 1 of the patent application, the air supply pipeline is further equipped with an air supply equipment, and the air supply equipment is further any one of an air pump and an air blower. For example, in the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the first air outlet pipe is further provided with a first air outlet control valve, and the second air outlet pipe is further provided with a first air outlet control valve. There are two air outlet control valves, and the third air outlet pipeline is further provided with a third air outlet control valve. For example, in the adsorbent tube membrane carbon dioxide capture system described in item 1 of the patent application, the gas production pipeline is further transported to a gas collection place. When the gas production bypass pipeline is bypassed, When the transport control valve is closed and the gas transport control valve of the gas transport pipeline is opened, the gas transport pipeline transports a concentrated carbon dioxide gas to the gas collection place through the vacuum pump in a vacuum manner. For example, in the adsorbent tube membrane carbon dioxide capture system described in item 23 of the patent application, the gas production collection place is any one of a carbon dioxide concentration gas storage barrel, a carbon dioxide concentration pool, and a carbon dioxide concentration concentration tank. For example, in the adsorbent membrane carbon dioxide capture system described in item 1 of the patent application, when the gas production bypass transmission control valve of the gas production bypass transmission pipeline is opened, the gas production transmission control of the gas production bypass transmission pipeline When the valve is closed, the gas production pipeline uses a vacuum pump to transport a concentrated carbon dioxide gas into the gas production bypass pipeline, and then transports it to the first gas storage through the gas production bypass pipeline. inside the tank.

Images