CN102432008B - Circular carbon dioxide capture device with hydrate method - Google Patents
Circular carbon dioxide capture device with hydrate method Download PDFInfo
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- CN102432008B CN102432008B CN2011102781327A CN201110278132A CN102432008B CN 102432008 B CN102432008 B CN 102432008B CN 2011102781327 A CN2011102781327 A CN 2011102781327A CN 201110278132 A CN201110278132 A CN 201110278132A CN 102432008 B CN102432008 B CN 102432008B
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- gas
- knockout tower
- carbon dioxide
- hydrate
- capture device
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
A circular carbon dioxide capture device with hydrate method belongs to the technical field of hydrate application. It is characterized in that the capture device comprises a separating tower, a gas supply pressure-boosting system, a temperature control system, a separating liquid recycling system and a computer data collecting system. The mixed gas is boosted in pressure by a gas booster pump and then introduced into a high-pressure separating tower, the separating tower is filled with porous dielectric materials containing the separating liquid and is provided with a heat exchange coil pipe, a glycol bath constant temperature slot is communicated in recycling manner with the heat exchange coil pipe to control temperature of the separating tower, the amount of the gas after separation is measured by a flowmeter, gas components are analyzed by a gas chromatograph, the working parameters during the separation process such as temperature and pressure signals are collected and analyzed real time by the computer data collecting system. Effects and benefits of the invention are as follows: the carbon dioxide capture can be realized by the hydrate method rapidly and economically, the circular separating tower can effectively avoid blocking of the porous dielectric hole resulted by hydrate formation and the gas capture efficiency is improved.
Description
Technical field
The invention belongs to the Application of Hydrate technical field, relate to a kind of circular carbon dioxide capture device with hydrate method.
Background technology
Day by day serious along with Greenhouse effect, collecting carbonic anhydride and Plugging Technology Applied have been subject to paying close attention to widely.CO
2The efficient capture is to realize CO
2The key link of sealing up for safekeeping.Hydrate CO
2Trapping technique can be applied to fossil-fuelled power plant flue gas (CO as a kind of new methods
2/ N
2) and combustible gas (CO
2/ H
2) in the capture of carbonic acid gas, it is thought the long-term CO of tool potentiality by USDOE (DOE)
2Trapping technique, its energy consumption only has 6-8%.Foreign study personnel prediction hydrate separation of C O in following 5-10
2Technology can obtain industrial applications, and the chemical absorption Techniques For Reducing that the separation costs ratio is commonly used now is more than 45%.Hydrate CO
2The ultimate principle of trapping technique is to utilize CO
2With N
2, H
2The formation hydrate is temperature required, the difference of pressure condition, by preferential formation CO
2Hydrate (solid) is realized CO
2Gas and N
2Or H
2Separation.The major advantage that hydrate carries out gas delivery has: operational condition is gentle, saves cooling power; Pressure reduction is little before and after separating, and saves pressurization energy; Technique is simple, does not have significant loss.
The scientific research personnel has obtained certain achievement in hydrate collecting carbonic anhydride technical field at present, but still there are the following problems in implementation process for existing carbon dioxide capture device with hydrate method, and hydrate forms that speed is slow, temperature response is slow, the easy passage of hydrate, device dismounting difficulty etc.
Summary of the invention
The purpose of this invention is to provide a kind of circular carbon dioxide capture device with hydrate method, solve slow, the problems such as efficient is low, easy generation obstruction of speed in the hydrate collecting carbonic anhydride process.
Technical scheme of the present invention is a kind of circular carbon dioxide capture device with hydrate method, mainly comprise a knockout tower, temperature controlling system, air feed supercharging system, gas gathering system, the parting liquid recycle system, computer data acquisition system, also comprise a gas chromatographicanalyzer and vacuum pump; Described knockout tower adopts annular high pressure resistant stainless steel structure, directly upwards be provided with 5 equidistant thermopairs at it, knockout tower comprises, the lower flange plug, wherein the upper flange plate center is provided with an exhaust port for connecting gas gathering system, the center of radius position is provided with 4 parting liquid circulation imports, the lower flange center is provided with the parting liquid loop exit, radial direction is provided with temperature control fluid and advances, outlet, and thermopair interface, knockout tower body of the tower side direction is provided with 4 intake interfaces and is used for connecting airing system, in knockout tower inside is provided with, the outer ring porous barrier, load porous media material in the middle of two dividing plates;
Described temperature controlling system pumps into ethylene glycol liquid in the thermostatic bath knockout tower heat exchange coil and returns thermostatic bath through the temperature control fluid outlet by the temperature control fluid import; Described air feed supercharging system enters knockout tower with the mixed gas pressurization by intake interface; Described gas gathering system reclaims the gas after separating in the knockout tower through exhaust port; The described parting liquid recycle system with the separating liquid of knockout tower inner bottom part by flow through recycle pump and pass into the parting liquid import and finally reach porous medium inside of discharge channel; Described computer data acquisition system can Real-time Collection and the data such as treatment temp, pressure, flow.
Effect of the present invention and benefit are that a kind of circular carbon dioxide capture device with hydrate method has been realized the quick, efficient of carbon dioxide captured.Improved in the gas trapping process the control of temperature, improved the hydrate formation speed, the ring structure knockout tower has been avoided having improved gas trapping efficient because hydrate forms the porous medium pore plugging that causes effectively.The recycling of parting liquid has effectively been avoided the parting liquid pollution and improved economy.
Description of drawings
Fig. 1 is a kind of circular carbon dioxide capture device with hydrate method principle of work block diagram.
Fig. 2 is a kind of system diagram of circular carbon dioxide capture device with hydrate method.
Fig. 3 is the high-pressure separation columns structure iron.
Among the figure: 1 knockout tower; 2CO
2/ H
2Gas cylinder; 3 gas boosting pumps; 4 vacuum pumps; 5,5a pressure unit; 6 thermopairs; 7 back pressure valves; 8 vacuum breaker; 9,9a under meter; 10 gas chromatographs; 11,11a collection and confinement of gases bag; 12 liquid booster pumps; 13 thermostatic baths; 14 data acquisition modules; 15 industrial computer; 16,16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h needle-valve; 17,17a safety valve; 18 moisture eliminators; 19 reducing valve; 20 upper flange plates; 21 lower flanges; 22 exhaust ports; 23 parting liquid circulation imports; 24 parting liquid loop exits; 25 temperature control fluid imports; The outlet of 26 temperature control fluids; 27 thermopair interfaces; 28 intake interfaces; 29 outer porous barriers; 30 interior porous barriers; 31 porous mediums; 32 heat exchange coils.
Embodiment
Be described in detail the specific embodiment of the present invention below in conjunction with technical scheme and accompanying drawing.
Figure 1 shows that capturing device principle of work block diagram, its working process is: mixed gas is inputted in the high-pressure separation columns after the supercharging of gas boosting pump, fill the porous media material that contains parting liquid in the knockout tower, be furnished with heat exchange coil in the knockout tower, ethylene glycol bath thermostatic bath outer circulation UNICOM heat exchange coil carries out temperature control to knockout tower, after separating gas volume by under meter measure, gaseous fraction is by the gas chromatograph analysis, the working parameter in the sepn process such as temperature, pressure signal are by computer data acquisition system collection and real-time analysis.
Figure 2 shows that the system diagram of capturing device, the below is illustrated by system shown in the figure:
(1) the temperature control system working process is: before the experiment beginning temperature controlling groove 13 interior temperature are remained on the experiment set(ting)value, open outer circulation and impel ethylene glycol to flow in the heat exchange coil of knockout tower, accurately control the temperature of knockout tower 1.In the collecting carbonic anhydride process thermostatic bath 13 is set as low-temperature values, the release of carbonate dioxide process is set in high temperature values with thermostatic bath 13 values.
(2) parting liquid recycle system working process is: open needle-valve 16e, 216f and utilize liquid booster pump 12 that the residual parting liquid in knockout tower bottom is pumped into the knockout tower top and enters porous medium.
(3) the computer data acquisition system working process is: thermopair 6, pressure unit 5,5a, under meter 9,9a, 5 collect after temperature in the porous medium, knockout tower internal pressure, mixed gas flow, the separation simulating signal such as gas flow, these signals are transferred to data acquisition module 14 to carry out data processing and obtains numerary signal, and numerary signal is carried out data presentation and storage by MCGS software after importing industrial computer 15 into.
(4) carbon dioxide capture process is as follows: by illustrated arrangement, all needle-valves all are in closing condition, open thermostatic bath 13 porous medium temperature in the knockout tower is reduced to set(ting)value.Adjust back pressure valve 7 to the experiment setup pressure value, open needle-valve 16b and utilize vacuum pump 4 to vacuumize, reach and close vacuum pump 4, needle-valve 16b after vacuum requires.Open mixed gas gas cylinder 2, needle-valve 16,16a, 16c, 16h, open gas boosting pump 3 mixed gas is injected into knockout tower 1 with constant current speed, utilize first flow meter 9 monitoring mixed gas flows, reach when pressure after the setup pressure value of back pressure valve 7, the gas that back pressure valve 7 is opened after the separation flows in the moisture eliminator 18 through vacuum breaker 8, and dried divided gas flow is measured by needle-valve 16h inflow gas collecting bag 11 by the second under meter 9a.Opening needle-valve 16d by the experimental design time in the sepn process utilizes gas chromatograph to carry out the component test to separating rear gas.When the first flow meter is identical with the second testing flow meter flow, think in the experimentation to reach maximum collecting carbonic anhydride ability, close gas cylinder 2, needle-valve 16,16a, 16h.
(5) the carbon dioxide dispose procedure is as follows: by illustrated arrangement, open thermostatic bath 13 porous medium temperature in the knockout tower is elevated to set(ting)value, open needle-valve 16g; After temperature reached the carbon dioxide hydrate decomposition temperature in the porous medium, back pressure valve 7 was automatically opened carbon dioxide and is flowed in the moisture eliminator 18 through vacuum breaker 8, and dried divided gas flow is measured rear inflow gas collecting bag 11a by the second under meter 9a.Opening needle-valve 16d by the experimental design time in the sepn process utilizes gas chromatograph to carry out the component test to separating rear gas.Think when the second testing flow meter flow is 0 in the experimentation that decomposition course finishes, close needle-valve 16g.
Figure 3 shows that the knockout tower structure iron.With knockout tower lower flange 21 with after the knockout tower main body is connected, annular porous barrier 29,30 and thermopair 6 is installed, after adding porous medium 31 materials upper flange plate plug 20 is fixed on the knockout tower main body, determines the intact rear connection exhaust port 22 of sealing, parting liquid circulation import 23, parting liquid loop exit 24, temperature control fluid import 25, temperature control fluid outlet 26, intake interface 28.
Claims (4)
1. circular carbon dioxide capture device with hydrate method, it is characterized in that: comprise a knockout tower (1), temperature controlling system, air feed supercharging system, gas gathering system, the parting liquid recycle system, computer data acquisition system, also comprise a chromatography of gases analyser (10) and vacuum pump (4); Described knockout tower (1) adopts annular high pressure resistant stainless steel structure, be provided with 5 equidistant thermopairs (6) at knockout tower (1) internal diameter direction, knockout tower (1) comprises, lower flange (20,21) plug, wherein upper flange plate (20) center is provided with exhaust port (22) connection gas gathering system, the center of radius position is provided with 4 parting liquid circulation imports (23), the lower flange center is provided with parting liquid loop exit (24), radial direction is provided with temperature control fluid and imports and exports (25,26), and thermopair interface (27), knockout tower body of the tower side direction is provided with four intake interfaces (28) and connects airing system, and knockout tower inside is provided with two annular porous barriers (29,30), load porous medium (31) material in the middle of two dividing plates; Described temperature controlling system pumps into ethylene glycol liquid knockout tower heat exchange coil (32) and returns thermostatic bath (13) through temperature control fluid outlet (26) by temperature control fluid import (25); Described air feed supercharging system enters knockout tower (1) with mixed gas through intake interface (28); Described gas gathering system reclaims the gas after separating in the knockout tower (1) through exhaust port (22); The described parting liquid recycle system with the separating liquid of knockout tower (1) inner bottom part by flow through recycle pump and pass into parting liquid circulation import (23) finally to enter porous medium (31) hole inner of discharge channel (24); Described computer data acquisition system can Real-time Collection and the data such as treatment temp, pressure, flow;
Described temperature controlling system comprises a thermostatic bath (13) and places the inner temperature controlled heat exchange coil (32) that is used for of knockout tower (1), and thermostatic bath (13) and heat exchange coil (32) are through hose connection.
2. a kind of circular carbon dioxide capture device with hydrate method according to claim 1 is characterized in that: described air feed supercharging system comprises a vacuum pump (4) in parallel with the first safety valve (17) and be connected with knockout tower (1); A gas boosting pump (3) that is connected with gas cylinder (2) through reducing valve (19), gas boosting pump (3) is connected with the intake interface (28) of knockout tower (1) through first flow meter (9).
3. a kind of circular carbon dioxide capture device with hydrate method according to claim 1, it is characterized in that: described gas gathering system comprises through needle-valve (16f) and is connected 1 with knockout tower) back pressure valve (7) that connects, back pressure valve (7) is connected with the second under meter (9a) through vacuum breaker (8), moisture eliminator (18), and the second under meter (9a) and the second safety valve (17a) that is connected parallel with one another, gas chromatograph (10), collection and confinement of gases bag (11,11a) connect.
4. a kind of circular carbon dioxide capture device with hydrate method according to claim 1, it is characterized in that: described computer data acquisition system comprises one and adopts the data acquisition module (14) of electrical connection with thermopair (6), pressure unit (5,5a), under meter (9,9a) and gas chromatograph (10), and data that gather is passed to industrial computer (15) process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102781327A CN102432008B (en) | 2011-09-19 | 2011-09-19 | Circular carbon dioxide capture device with hydrate method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102781327A CN102432008B (en) | 2011-09-19 | 2011-09-19 | Circular carbon dioxide capture device with hydrate method |
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| Publication Number | Publication Date |
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| CN102432008A CN102432008A (en) | 2012-05-02 |
| CN102432008B true CN102432008B (en) | 2013-01-30 |
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| CN2011102781327A Expired - Fee Related CN102432008B (en) | 2011-09-19 | 2011-09-19 | Circular carbon dioxide capture device with hydrate method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861444B (en) * | 2014-03-21 | 2015-10-28 | 大连理工大学 | A kind of collecting carbonic anhydride based on hydrate and desalinization combined production device and method |
| CN103964434B (en) * | 2014-04-23 | 2015-10-28 | 大连理工大学 | A kind of based on hydrate trapping CO 2circulating fluidized bed furnace system |
| CN103961989B (en) * | 2014-04-23 | 2015-12-09 | 大连理工大学 | A kind of bubble type hydrate capturing carbon dioxide system |
| CN113082983B (en) * | 2021-04-19 | 2022-02-15 | 大连理工大学 | System for separating carbon dioxide and hydrogen by continuous hydrate method based on gas throttling technology |
| CN117130070A (en) * | 2023-07-28 | 2023-11-28 | 大连理工大学 | Simulation of CO 2 Geological storage whole-process multi-parameter monitoring device, method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456556A (en) * | 2008-12-31 | 2009-06-17 | 中国科学院广州能源研究所 | Carbon dioxide industrial-scale separation and purification system and method in mixture gas by hydrate method |
| CN102061950A (en) * | 2010-10-25 | 2011-05-18 | 陈海文 | Device for capturing CO2 from flue gas by ultralow temperature generation joint cryogenic medium-pressure method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456556A (en) * | 2008-12-31 | 2009-06-17 | 中国科学院广州能源研究所 | Carbon dioxide industrial-scale separation and purification system and method in mixture gas by hydrate method |
| CN102061950A (en) * | 2010-10-25 | 2011-05-18 | 陈海文 | Device for capturing CO2 from flue gas by ultralow temperature generation joint cryogenic medium-pressure method |
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| CN102432008A (en) | 2012-05-02 |
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