CN103964434A - Circulating fluidized bed furnace system for capturing CO2 based on hydrate method - Google Patents
Circulating fluidized bed furnace system for capturing CO2 based on hydrate method Download PDFInfo
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- CN103964434A CN103964434A CN201410165156.5A CN201410165156A CN103964434A CN 103964434 A CN103964434 A CN 103964434A CN 201410165156 A CN201410165156 A CN 201410165156A CN 103964434 A CN103964434 A CN 103964434A
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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
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Abstract
The invention belongs to the technical field of application of hydrates, relates to a fluidized bed furnace system for capturing CO2 based on a hydrate method. The fluidized bed furnace system comprise reactors, a computer acquisition system, a gas inlet system, an exhaust system and a feeding back system; after pressurized by a gas booster pump, a mixed gas is input to the reactors, the reactors are filled with a THF/SDS solution and silica gel particles, and working parameters during reaction are acquired and analyzed in real time by the computer data acquisition system. According to the invention, a method for capturing CO2 based on the hydrate method is combined with a fluidized bed furnace, so that a technology for capturing CO2 based on the hydrate method can realize industrialization; meanwhile, the THF/SDS mixed solution is added into feeding openings, so that shortcomings of low speed and long cycle of hydrate formation can be overcome by the dry silica gel particles. The reactors are designed of a two-stage structure, the utilization ratio of materials can be improved, and a problem of blockage of porous medium pores, which is caused by the hydrate formation, can be solved; the feeding back system is arranged at the lower part of the device (namely the system) to recycle waste materials, so that reuse is facilitated, and the economical efficiency is improved.
Description
Technical field
The invention belongs to Application of Hydrate technical field, relate to a kind of based on hydrate trapping CO
2circulating fluidized bed furnace system.
Background technology
Day by day serious along with environmental problem, Greenhouse effect and energy-saving and emission-reduction have caused the extensive concern in the world.The carbonic acid gas that the burning of fossil oil is discharged is considered to cause the first cause of Greenhouse effect and climate change.In order to tackle the challenge that these environmental problems bring and effectively to develop low-carbon economy, reduce sealing up for safekeeping of the discharge of carbonic acid gas and carbonic acid gas imperative.Carbonic acid gas (CO
2) efficient trapping is to realize CO
2the key link of sealing up for safekeeping.Hydrate CO
2trapping technique is applicable to fossil-fuelled power plant flue gas (CO
2/ N
2) and combustible gas (CO
2/ H
2) middle CO
2trapping, it is thought the long-term CO of tool potentiality by USDOE (DOE)
2trapping technique.
Scientific research personnel is trapping CO based on hydrate at present
2technical field has obtained certain achievement, but existing based on hydrate trapping CO
2device all there is following problem: be difficult to realize industrialization, can not recycle raw material, hydrate generates slow, and the cycle is long, can not from large quantity of exhaust gas, reclaim carbonic acid gas etc.By fluidizer and hydrate trapping CO
2may in conjunction with becoming the one addressing the above problem.
Fluidizing theory starts from the twenties in 20th century for burning, is mainly used in petrochemical complex and metallurgical industry after the forties, and fluidized-bed combustion is the New combustion technique that starts to grow up in the sixties in 20th century.Lack because the energy is anxious and environmental protection requirement improves day by day, fluidized-bed is not only because efficiency of combustion is high, heat-transfer effect is good and simple in structure, and the advantage such as its fuel tolerance is wide, is subject to the generally attention of countries in the world and developed rapidly.
Summary of the invention
The invention provides a kind of based on hydrate trapping CO
2circulating fluidized bed furnace system, for based on hydrate trapping CO
2technology provide one can realize industrialized device, and can recycle raw material.
Technical scheme of the present invention is as follows:
A kind of based on hydrate trapping CO
2circulating fluidized bed furnace system, this circulating fluidized bed furnace system comprises A reactor, second reactor, garbage collection chamber, computer acquisition system, inlet system, exhaust system and material return system;
A reactor and second reactor are made up of high pressure resistant stainless steel, are all arranged in pressure vessel, between pressure vessel and A reactor and second reactor, are filled with refrigerant fluid.There are two controllable valves the junction of A reactor and second reactor.Opening for feed and feedback outlet are arranged at second reactor top, have respectively a controllable valve between second reactor and opening for feed, second reactor and feedback outlet.The opening for feed place of second reactor arranges a hydraulic planger pump, provides power that material is advanced in second reactor and A reactor by hydraulic planger pump.In the opening for feed of second reactor, add tetrahydrofuran (THF) (THF) to mix sodium lauryl sulphate (SDS) solution and dry silica gel particle.A reactor bottom is provided with inlet mouth, is provided with a controllable valve at inlet mouth place.Lower end at A reactor connects garbage collection chamber, is provided with a controllable valve in the junction of A reactor and garbage collection chamber.The indoor electromagnetic heating tube that is provided with of garbage collection, decomposes CO for adding heat waste
2.
Exhaust system comprises row CO
2system and row N
2system, row CO
2system comprises strainer, row CO
2mouth and gas chromatograph; Row CO
2system is connected with garbage collection chamber, is provided with a controllable valve in junction; CO
2first carry out filter residue dehumidifying by strainer, then through row CO
2mouth is discharged, and gas chromatograph and strainer are arranged in parallel; Row N
2system comprises strainer and row N
2mouthful, N
2first carry out filter residue dehumidifying by strainer, then through row N
2mouth is discharged, row N
2system is connected with second reactor, is provided with a controllable valve in junction.
Material return system comprises slag-drip opening, feed back pipe, hydraulic planger pump and feedback outlet.Material return system is connected with garbage collection chamber, and wherein, slag-drip opening is connected with garbage collection chamber, is provided with a controllable valve in junction; Feedback outlet is connected with second reactor, is provided with a controllable valve in junction.Between slag-drip opening and feedback outlet, be connected by feed back pipe, and a hydraulic planger pump is set in feed back pipe.Waste material enters in feed back pipe by slag-drip opening, provides power to make waste material to feedback outlet place by hydraulic planger pump, opens controllable valve between second reactor and feedback outlet and makes waste material enter second reactor to carry out second stage employ.
A reactor is connected with pressure unit, and the data that pressure unit obtains are carried out data gathering by computer acquisition system.
One, inlet mouth place gas boosting pump, gas boosting pump is connected with A reactor, and junction is provided with a controllable valve.Gas boosting pump can be by gaseous tension control within the required range.Gas, after the pressurization of gas boosting pump, enters reactor.
Effect of the present invention and benefit are to trap CO based on hydrate
2with the advantages of fluid bed furnace, can will trap CO based on hydrate
2technology realize industrialization, and add THF/SDS mixing solutions at opening for feed, it is slow that dry silica gel particle can solve hydrate formation speed, the shortcoming that the cycle is long.Reactor is divided into the design of two-stage, has improved the utilising efficiency of material and has effectively avoided hydrate to generate and the porous medium pore plugging problem that causes.Be provided with material return system in device bottom simultaneously and can, by waste recovery, to carry out second stage employ, have improved economy.
Brief description of the drawings
Fig. 1 is a kind of based on hydrate trapping CO
2fluid bed furnace system architecture diagram.
Fig. 2 is a kind of based on hydrate trapping CO
2fluid bed furnace system architecture schematic diagram.
In figure: 1 controllable valve; 2 strainers; 3 A reactors; 4 second reactors;
5 pressure vessels; 6 inlet mouths; 7 pressure units; 8 data acquisition modules; 9 industrial computer;
10 opening for feeds; 11 row CO
2mouthful; 12 gas chromatographs; 13 row N
2mouthful; 14 garbage collection chambers;
15 electromagnetic heating tubes; 16 slag-drip openings; 17 feed back pipes; 18 feedback outlets; 19 hydraulic planger pumps;
20 gas boosting pumps.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with technical scheme and accompanying drawing.
Figure 1 shows that based on hydrate trapping CO
2the principle of work block diagram of fluid bed furnace system, its working process is: open opening for feed, THF mixing SDS solution, dry silica gel particle enters in reactor after mixing.Open inlet mouth, gas enters in reactor, under cryogenic high pressure, and CO
2generate hydrate, pressure drop, in the time that pressure no longer changes, explanation reaction finishes.Start to collect gas.Gaseous fraction is analyzed by gas chromatograph, and the pressure signal in reaction process is by computer acquisition system collection and real-time analysis.
Figure 2 shows that based on hydrate trapping CO
2fluid bed furnace system schematic.
(1) in reactor, working process is: open opening for feed, open two controllable valves of A reactor and second reactor junction, and THF mixing SDS solution, dry silica gel particle enters into second reactor and A reactor after mixing.After material end-of-fill, close two controllable valves of A reactor and second reactor junction.Between reactor and pressure vessel, be filled with refrigerant fluid, under cryogenic high pressure, hydrate more easily generates.First gas through precooling supercharging enter into A reactor, and the gas of high pressure makes the particle fluidization in A reactor, treats CO
2after hydrate generates in reactor, observe pressure change by computer acquisition system, pressure obviously declines, and now opens two controllable valves of A reactor and second reactor junction after pressure-stabilisation, and gas enters second reactor, now continuing observed pressure by computer acquisition system changes, pressure meeting further declines, and this explanation gas further water generation reaction compound in reactor, after hydrate generation finishes, pressure will no longer change, and start exhaust process.
(2) computer data acquisition system working process is: pressure unit collects the simulating signal of reactor pressure, these signals are transferred to data acquisition module 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 into
(3) exhaust work process is: after hydrate generates, open the row N on reactor top
2mouthful, N
2can after filtering, strainer obtain N
2.The controllable valve of opening A reactor and junction, garbage collection chamber, hydrate and waste material enter into garbage collection chamber.Now open the electromagnetic heating tube of garbage collection chamber, after heating for some time, the row of opening CO
2mouthful, after strainer filters, beat and obtain CO
2.
(4) material returning work process is: CO to be collected
2after, open slag-drip opening, collect waste material, waste material main component is THF mixing SDS solution and silica gel particle, by hydraulic planger pump, waste material is got back to feedback outlet from slag-drip opening in feed back pipe, enters and in second reactor, carries out second stage employ.
Claims (2)
1. one kind traps CO based on hydrate
2circulating fluidized bed furnace system, it is characterized in that, this circulating fluidized bed furnace system comprises A reactor, second reactor, garbage collection chamber, computer acquisition system, inlet system, exhaust system and material return system;
A reactor and second reactor are made up of high pressure resistant stainless steel, are all arranged in pressure vessel, between pressure vessel and A reactor and second reactor, are filled with refrigerant fluid; There are two controllable valves the junction of A reactor and second reactor; Opening for feed and feedback outlet are arranged at second reactor top, have respectively a controllable valve between second reactor and opening for feed, second reactor and feedback outlet; The opening for feed place of second reactor arranges a hydraulic planger pump, provides power that material is advanced in second reactor and A reactor by hydraulic planger pump; In the opening for feed of second reactor, add tetrahydrofuran (THF) mixing sodium dodecyl sulfate solution and dry silica gel particle; A reactor bottom is provided with inlet mouth, is provided with a controllable valve at inlet mouth place; Lower end at A reactor connects garbage collection chamber, is provided with a controllable valve in the junction of A reactor and garbage collection chamber; The indoor electromagnetic heating tube that is provided with of garbage collection, decomposes CO for adding heat waste
2;
Exhaust system comprises row CO
2system and row N
2system, row CO
2system comprises strainer, row CO
2mouth and gas chromatograph; Row CO
2system is connected with garbage collection chamber, is provided with a controllable valve in junction; CO
2first carry out filter residue dehumidifying by strainer, then through row CO
2mouth is discharged, and gas chromatograph and strainer are arranged in parallel; Row N
2system comprises strainer and row N
2mouthful, N
2first carry out filter residue dehumidifying by strainer, then through row N
2mouth is discharged, row N
2system is connected with second reactor, is provided with a controllable valve in junction;
Material return system comprises slag-drip opening, feed back pipe, hydraulic planger pump and feedback outlet; Material return system is connected with garbage collection chamber, and wherein, slag-drip opening is connected with garbage collection chamber, is provided with a controllable valve in junction; Feedback outlet is connected with second reactor, is provided with a controllable valve in junction; Between slag-drip opening and feedback outlet, be connected by feed back pipe, and a hydraulic planger pump is set in feed back pipe; Waste material enters in feed back pipe by slag-drip opening, provides power to make waste material to feedback outlet place by hydraulic planger pump, opens controllable valve between second reactor and feedback outlet and makes waste material enter second reactor to carry out second stage employ;
A reactor is connected with pressure unit, and the data that pressure unit obtains are carried out data gathering by computer acquisition system;
One, inlet mouth place gas boosting pump, gas boosting pump is connected with A reactor, and junction is provided with a controllable valve; Gas boosting pump can be by gaseous tension control within the required range; Gas enters reactor after the pressurization of gas boosting pump.
2. circulating fluidized bed furnace system according to claim 1, is characterized in that, described computer data acquisition system comprises pressure unit and data acquisition module, the data that gather can be passed to industrial computer processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165156.5A CN103964434B (en) | 2014-04-23 | 2014-04-23 | A kind of based on hydrate trapping CO 2circulating fluidized bed furnace system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165156.5A CN103964434B (en) | 2014-04-23 | 2014-04-23 | A kind of based on hydrate trapping CO 2circulating fluidized bed furnace system |
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|---|---|
| CN103964434A true CN103964434A (en) | 2014-08-06 |
| CN103964434B CN103964434B (en) | 2015-10-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008206A (en) * | 2017-06-12 | 2017-08-04 | 上海理工大学 | A kind of heat pipe-type gas hydrate quickly generates device |
Citations (4)
| 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 |
| CN102432008A (en) * | 2011-09-19 | 2012-05-02 | 大连理工大学 | Circular carbon dioxide capture device with hydrate method |
| JP2014018776A (en) * | 2012-07-23 | 2014-02-03 | Mitsui Eng & Shipbuild Co Ltd | Carbon dioxide separation system and carbon dioxide separation method |
| CN103638800A (en) * | 2013-12-10 | 2014-03-19 | 中国科学院广州能源研究所 | Device and method for continuously separating gas in batch by virtue of hydrate method |
-
2014
- 2014-04-23 CN CN201410165156.5A patent/CN103964434B/en active Active
Patent Citations (4)
| 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 |
| CN102432008A (en) * | 2011-09-19 | 2012-05-02 | 大连理工大学 | Circular carbon dioxide capture device with hydrate method |
| JP2014018776A (en) * | 2012-07-23 | 2014-02-03 | Mitsui Eng & Shipbuild Co Ltd | Carbon dioxide separation system and carbon dioxide separation method |
| CN103638800A (en) * | 2013-12-10 | 2014-03-19 | 中国科学院广州能源研究所 | Device and method for continuously separating gas in batch by virtue of hydrate method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008206A (en) * | 2017-06-12 | 2017-08-04 | 上海理工大学 | A kind of heat pipe-type gas hydrate quickly generates device |
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| CN103964434B (en) | 2015-10-28 |
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