CN109718724A - A kind of chemical chain reaction device system with carbon separation function - Google Patents
A kind of chemical chain reaction device system with carbon separation function Download PDFInfo
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- CN109718724A CN109718724A CN201711047846.0A CN201711047846A CN109718724A CN 109718724 A CN109718724 A CN 109718724A CN 201711047846 A CN201711047846 A CN 201711047846A CN 109718724 A CN109718724 A CN 109718724A
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- reactor
- connecting pipe
- air
- oxygen carrier
- mixing bunker
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 97
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000000126 substance Substances 0.000 title claims abstract description 29
- 238000000926 separation method Methods 0.000 title claims description 24
- 239000000446 fuel Substances 0.000 claims abstract description 66
- 239000001301 oxygen Substances 0.000 claims abstract description 55
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 55
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000002485 combustion reaction Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000005243 fluidization Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010747 number 6 fuel oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of chemical chain reaction device systems, including the air reactor and fluidized beds combustion reactor being interconnected by connecting pipe, fluidized beds combustion inside reactor is equipped with mixing bunker, reaction warehouse and sorting bin, and mixing bunker, reaction warehouse and sorting bin bottom are correspondingly provided with air compartment independent；The outlet of air reactor is connected to by connecting pipe with the oxygen carrier entrance of mixing bunker, the reduction-state oxygen carrier outlet of sorting bin is connected to by connecting pipe with air reactor, and the carbon loopback outlet of sorting bin is connected to by the connecting pipe between connecting pipe and air reactor and mixing bunker.Residence time of the fuel in reaction warehouse can not only be significantly increased in chemical chain reaction device system of the invention, to improve the reaction rate and conversion ratio of fuel, and the complexity of chemical chain reaction device system is also simplified, to significantly reduce the operation control difficulty of system.
Description
Technical field
The present invention relates to a kind of chemical chain reaction device system, especially a kind of chemical chain reaction device with carbon separation function
System.
Background technique
Chemical chain is a kind of novel fossil energy combustion technology, and the key of the technology is by metal oxide as load
Oxygen in air is passed to fuel by oxysome, is contacted so as to avoid fuel with the direct of air；At it as fuel reactor
When, the carbon dioxide for generation of burning is enriched with low energy consumption may be implemented；When it is as gasification reactor, the combustion gas for generation of gasifying
Purity is very high, and foreign gas content is few.
Chemical chain reaction device system is mainly made of air reactor and fuel reactor, in air reactor, reduction
The oxygen carrier of state is sufficiently reacted with air, is substantially oxidized, it is fully oxidized after oxygen carrier enter fuel reactor, in fuel
Coal gasification reaction and oxygen carrier reduction reaction occur in reactor.
For the core component fuel reactor of chemical chain reaction device system, currently used there are two types of structure types
Fuel reactor, i.e., movement wear fuel reactor and fluidized beds combustion reactor；Wherein, moving bed fuel reactor is significant
Feature is that the residence time of oxygen carrier and fuel particle is long, and abundant conversion, and carbon capture efficiency can be obtained in fuel in the reactor
Height, still, there is also the reactor of the opposite enormousness of needs, to fuel particle Particle size requirements height (it is generally necessary to fuel
Grain partial size reaches 1mm grades), the disadvantages of mass-and heat-transfer effect is poor；And for fluidized beds combustion reactor, although it can be very
Good solution is mobile to wear the above problem existing for fuel reactor, but its there is also a biggish defects, i.e. fuel particle
Residence time is shorter in fluidized beds combustion reactor with oxygen carrier, and fuel cannot be converted sufficiently in the reactor, and not
The fuel of complete fuel conversion can enter in air reactor, influence carbon capture effect.It is being fluidized to increase fuel particle
Residence time in bed material reactor is usually utilized in chemical chain reaction device system so that fuel is sufficiently converted at present
Carbon separation unit is installed additional behind the fluidized beds combustion reactor of system, by the centrifugation of carbon separation unit, by the small combustion of sinking speed
Material particle carries out bed and returns to the conversion that burns away in fuel reactor, and then reaches and increase fuel particle in the reactor
Residence time purpose, and the big reduction-state oxygen carrier granule of the sinking speed separated is transmitted back to air reactor
In.Although can be solved to a certain extent using abovementioned technology, the fuel particle residence time is short, cannot sufficiently convert
The problem of, but add carbon separation unit in chemical chain reaction device system so that entire chemistry catenary system constitute it is anti-by air
The labyrinth for answering three circulation loops of device, fluidized beds combustion reactor and carbon separation unit composition, it is anti-to considerably increase chemical chain
The complex degree of structure of device system is answered, and then is added significantly to the operation control difficulty of system.
Summary of the invention
The chemical chain reaction device system with carbon separation function that technical problem to be solved by the invention is to provide a kind of, should
The residence time of fuel and oxygen carrier in reaction warehouse can not only be significantly increased in system, thus improve fuel reaction rate and
Conversion ratio, but also three circulation loops are reduced to double circulation loop, enormously simplify the complicated journey of chemical chain reaction device system
Degree thereby reduces the operation control difficulty of system.
The technical solution adopted by the present invention to solve the technical problems is: a kind of chemical chain reaction with carbon separation function
Device system, air reactor, fluidized beds combustion reactor and company including having air intake and reduction-state oxygen carrier entrance
Adapter tube road, the air reactor and fluidized beds combustion reactor are interconnected by the connecting pipe and form closure
Reactor assembly, the fluidized beds combustion inside reactor is equipped with successively interconnected mixing bunker, reaction warehouse and sorting
Storehouse, the bottom of the mixing bunker, reaction warehouse and sorting bin are correspondingly arranged on air compartment independent；The mixing bunker is equipped with
The outlet of fuel inlet and oxygen carrier entrance, the air reactor is entered by the oxygen carrier of the connecting pipe and mixing bunker
Mouth connection；Air stream outlet and the outlet of reduction-state oxygen carrier, the reduction-state are respectively equipped at the top and bottom of the sorting bin
Oxygen carrier outlet is connected to by connecting pipe with air reactor, and the air stream outlet passes through connecting pipe and air reactor
Connecting pipe connection between mixing bunker.
Further, the reaction warehouse is made of several interconnected reaction chambers, the middle and lower part of each reaction chamber by
Several piece is spaced apart from each other the partition being evenly arranged and separates, so that labyrinth structure is formed inside reaction warehouse, the top of each reaction chamber
It is interconnected, and is equipped with exhaust outlet also at the top of reaction warehouse.
Further, a No.1 cyclone separator is equipped between the air reactor and mixing bunker.
Further, the other end and No.1 cyclone separator and mixing bunker of the connecting pipe of connection carbon loopback outlet
Between connecting pipe be connected, and also connection carbon loopback outlet connecting pipe on be equipped with No. two cyclone separators.
Further, the exhaust outlet passes through connecting pipe and No. two connecting tubes between cyclone separator and sorting bin
Road is connected.
The beneficial effects of the present invention are: the present invention inside fuel reactor by being arranged the mixing bunker being sequentially communicated, anti-
Storehouse and sorting bin are answered, meanwhile, air stream outlet and the outlet of reduction-state oxygen carrier are set at the top and bottom of sorting bin, and in sorting bin
It is interior to use the air-flow fluidizing velocity always held between sinking speed and oxygen carrier final Sedimentation Velocity between fuel particle, so that
Fuel reactor has carbon separation function, and the fluidized beds combustion reactor with carbon separation function is then applied to the present invention again
Chemical chain reaction device system in, so that three circulation loops of chemical chain reaction device system are reduced to double circulation loop, substantially
The complexity of chemical chain reaction device system is simplified, and then greatly reduces the operation control difficulty of system；At the same time, lead to
Reactor storehouse can be transmitted back to repeatedly for the fuel separated in reaction warehouse interior design labyrinth structure and fuel reactor by crossing
It is interior, so as to greatly increase the residence time of fuel and oxygen carrier in reaction warehouse, improve heat and mass, to improve fuel
Reaction rate, increase the conversion ratio of fuel.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the chemical chain reaction device system that the present invention has carbon separation function；
Fig. 2 is the front view for the fluidized beds combustion reactor that the present invention has carbon separation function；
Fig. 3 is the side view for the fluidized beds combustion reactor that the present invention has carbon separation function；
Fig. 4 is the top view for the fluidized beds combustion reactor that the present invention has carbon separation function；
In the figure, it is marked as 1- air reactor, 2- fluidized beds combustion reactor, 3- connecting pipe, 4- mixing bunker, 5- reaction warehouse,
6- sorting bin, 7- air compartment, 8- fuel inlet, 9- oxygen carrier entrance, 10- carbon loopback outlet, the outlet of 11- reduction-state oxygen carrier, 12-
Partition, 13- exhaust outlet, 14- No.1 cyclone separator, No. bis- cyclone separators of 15-, A- fuel, B- air, C- reduction-state oxygen carrier
Body.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As Figure 1-Figure 4, the present invention has the chemical chain reaction device system of carbon separation function, including has air intake
With the air reactor 1, fluidized beds combustion reactor 2 and connecting pipe 3 of reduction-state oxygen carrier entrance, the air reaction
Device 1 and fluidized beds combustion reactor 3 are interconnected by the connecting pipe 3 and form the reactor assembly of closure；It is described
Fluidized beds combustion reactor 2 inside be equipped with successively interconnected mixing bunker 4, reaction warehouse 5 and sorting bin 6, the mixing bunker
4, the bottom of reaction warehouse 5 and sorting bin 6 is equipped with air compartment 7 independent.
The mixing bunker 4 is equipped with fuel inlet 8 and oxygen carrier entrance 9, and the outlet of the air reactor 1 passes through described
Connecting pipe 3 be connected to the oxygen carrier entrance 9 of mixing bunker 4；The reaction warehouse 5 is by several interconnected reaction chamber groups
At the middle and lower part of each reaction chamber is spaced apart from each other the partition 12 being evenly arranged by several piece and separated, thus in 5 inside shape of reaction warehouse
At labyrinth structure, the top of each reaction chamber is interconnected, and exhaust outlet 13 is equipped with also at the top of reaction warehouse 5；The sorting bin 6
Top and bottom are respectively equipped with carbon loopback outlet 10 and reduction-state oxygen carrier outlet 11, and the reduction-state oxygen carrier outlet 11 is logical
It crosses connecting pipe 3 to be connected to air reactor 1, the carbon loopback outlet 10 by connecting pipe 3 and air reactor 1 and mixes
The connecting pipe 3 closed between storehouse 4 is connected to；A No.1 cyclone separator is equipped between the air reactor 1 and mixing bunker 4
14；Company between the other end and No.1 cyclone separator 14 and mixing bunker 4 of the connecting pipe 3 of connection carbon loopback outlet 10
Adapter tube road 3 is connected, and is also equipped with No. two cyclone separators 15 in the connecting pipe 3 of connection carbon loopback outlet 10；It is described
Exhaust outlet 13 be connected by connecting pipe 3 between connecting pipe 3 and No. two cyclone separators 15 and sorting bin 6.
The present invention has the working principle and the course of work of the chemical chain reaction device system of carbon separation function are as follows:
Firstly, by the air intake of air reactor and reduction-state oxygen carrier entrance convey into air reactor air B with
Reduction-state oxygen carrier C, the reduction-state oxygen carrier selected herein are Me, and then air and reduction-state oxygen carrier are in air reactor
Sufficiently reaction, is substantially oxidized reduction-state oxygen carrier Me and becomes oxygen carrier MeO, while being carried along by the flue gas that reaction generates
Into No.1 cyclone separator, the main component of flue gas is N2With a small amount of O2, oxygen carrier MeO after being substantially oxidized later is logical
It crosses No.1 cyclone separator to be separated, and passes through the mixing bunker oxygen carrier entrance of connecting pipe and fluidized beds combustion reactor
It enters in mixing bunker, and flue gas can then enter subsequent heat utilization process rank after being separated by No.1 cyclone separator
Section；At the same time, then by the fuel inlet of mixing mixing bunker fuel A is conveyed into mixing bunker, what the fuel was usually selected
Be coal dust, fuel and oxygen carrier both makes to mix by the fluidizing agent that the air compartment of mixing bunker bottom conveys suitable fluidizing velocity
It is sufficiently mixed uniform, reaction in storehouse, and is transported in reaction warehouse under the action of fluidizing agent；Uniformly mixed fuel and and
After oxygen carrier enters reaction warehouse, then the fluidizing agent of low fluidizing velocity is conveyed by the air compartment of reaction warehouse bottom to reaction warehouse,
And oxygen carrier, fuel and fluidizing agent is made to continue complicated chemical reaction in reaction warehouse, meanwhile, during the reaction,
Fuel and oxygen carrier can move to the other side, Zhi Houwei from side along the labyrinth structure inside reaction warehouse under the action of air-flow
The oxygen carrier MeO of fully reacting, fuel and the reduction-state oxygen carrier Me after being reduced can be transported in sorting bin, and be had neither part nor lot in
The fluidizing agent of reaction then passes through the exhaust outlet at the top of reaction warehouse and connecting pipe is transported in No. two cyclone separators and quilt
Separating treatment is fallen；Due to being formed with the more complicated labyrinth structure of structure inside reaction warehouse, and reaction warehouse uses low fluidizing velocity
Operation, thus fuel and oxygen carrier can in reaction warehouse substantial dwell time, i.e. fuel and oxygen carrier can be in reaction warehouse
Sufficiently reaction, converts fuel sufficiently, improves the conversion ratio of fuel；Later in sorting bin by the air compartment of its bottom to
The higher air-flow of fluidizing velocity is conveyed in sorting bin, fair speed herein, which refers to, always holds sinking speed between fuel particle and carry
Speed between oxysome final Sedimentation Velocity, so that the lesser fuel of sinking speed and oxygen carrier are passed through air-flow, sorting silo roof
The carbon loopback outlet in portion and connecting pipe are delivered in No. two cyclone separators, enter the combustion in No. two cyclone separators later
Material and a small amount of oxygen carrier are by removing CO2、H2O(burning) or H2, CO(gasification) after send mixing bunker back to by counter again, later again into
Enter in reaction warehouse and reacted, to avoid fuel particle from entering in air reactor with reduction-state oxygen carrier and influence carbon and catch
Collection efficiency exists simultaneously as the fuel not reacted completely can be transmitted back in reaction warehouse repeatedly so fuel can be further increased
Residence time in reaction warehouse so that fuel be made more fully to be converted, and then further increases the conversion ratio of fuel；And
Sinking speed is biggish be reduced after reduction-state oxygen carrier pass through the outlet of the reduction-state oxygen carrier of sorting bin bottom and connecting tube
Road is transported in air reactor；In addition, after the clean generation gas separated from No. two cyclone separators is then transported to
Continuous heat and generation gas utilizes process stages.
In conclusion the present invention is by being arranged the mixing bunker, the reaction warehouse that are sequentially communicated in fluidized beds combustion inside reactor
And sorting bin, meanwhile, air stream outlet and the outlet of reduction-state oxygen carrier are set at the top and bottom of sorting bin, and adopt in sorting bin
With the air-flow fluidizing velocity always held between fuel particle between sinking speed and oxygen carrier final Sedimentation Velocity, so that fuel
Reactor has carbon separation function, and the fluidized beds combustion reactor with carbon separation function is then applied to change of the invention again
It learns in chain reaction device system, so that three circulation loops of chemical chain reaction device system are reduced to double circulation loop, significantly simplifies
The complexity of chemical chain reaction device system, and then greatly reduce the operation control difficulty of system；At the same time, by
The fuel separated can be transmitted back to repeatedly in reactor storehouse by reaction warehouse interior design labyrinth structure and fuel reactor,
The residence time of fuel and oxygen carrier in reaction warehouse can be greatly increased, improves heat and mass, to improve the reaction of fuel
Rate increases the conversion ratio of fuel.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of chemical chain reaction device system with carbon separation function, including have air intake and reduction-state oxygen carrier entrance
Air reactor (1), fluidized beds combustion reactor (2) and connecting pipe (3), the air reactor (1) and fluidisation
Bed material reactor (2) is interconnected by the connecting pipe (3) and forms the reactor assembly of closure, and feature exists
In: successively interconnected mixing bunker (4), reaction warehouse (5) and sorting bin are equipped with inside the fluidized beds combustion reactor (2)
(6), the bottom of the mixing bunker (4), reaction warehouse (5) and sorting bin (6) is correspondingly arranged on air compartment independent (7)；Institute
The mixing bunker (4) stated is equipped with fuel inlet (8) and oxygen carrier entrance (9), and the outlet of the air reactor (1) passes through described
Connecting pipe (3) is connected to the oxygen carrier entrance (9) of mixing bunker (4)；Carbon is respectively equipped at the top and bottom of the sorting bin (6)
Loopback exports (10) and reduction-state oxygen carrier outlet (11), and the reduction-state oxygen carrier outlet (11) passes through connecting pipe (3)
It is connected to air reactor (1), the described carbon loopback outlet (10) is by connecting pipe (3) and air reactor (1) and mixes
Connecting pipe (3) connection between storehouse (4).
2. the chemical chain reaction device system according to claim 1 with carbon separation function, it is characterised in that: described is anti-
Storehouse (5) is answered to be made of several interconnected reaction chambers, the middle and lower part of each reaction chamber is spaced apart from each other by several piece to be evenly arranged
Partition (12) separates, to form labyrinth structure inside reaction warehouse (5), the top of each reaction chamber is interconnected, and also exists
Exhaust outlet (13) are equipped at the top of reaction warehouse (5).
3. the chemical chain reaction device system according to claim 2 with carbon separation function, it is characterised in that: the air
A No.1 cyclone separator (14) is equipped between reactor (1) and mixing bunker (4).
4. the chemical chain reaction device system according to claim 3 with carbon separation function, it is characterised in that: the connection
Carbon loopback exports the connection between the other end and No.1 cyclone separator (14) and mixing bunker (4) of the connecting pipe (3) of (10)
Pipeline (3) is connected, and No. two cyclone separators (15) are also equipped in the connecting pipe (3) of connection air stream outlet (10).
5. the chemical chain reaction device system according to claim 4 with carbon separation function, it is characterised in that: the row
Air port (13) is connected by the connecting pipe (3) between connecting pipe (3) and No. two cyclone separators (15) and sorting bin (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047846.0A CN109718724A (en) | 2017-10-31 | 2017-10-31 | A kind of chemical chain reaction device system with carbon separation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047846.0A CN109718724A (en) | 2017-10-31 | 2017-10-31 | A kind of chemical chain reaction device system with carbon separation function |
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| Publication Number | Publication Date |
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| CN109718724A true CN109718724A (en) | 2019-05-07 |
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| CN201711047846.0A Pending CN109718724A (en) | 2017-10-31 | 2017-10-31 | A kind of chemical chain reaction device system with carbon separation function |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332161A (en) * | 1992-06-03 | 1993-12-14 | Tokyo Electric Power Co Inc:The | Chemical loop combustion type power generating plant system |
| CN101638590A (en) * | 2009-08-24 | 2010-02-03 | 中国科学院广州能源研究所 | Method for producing synthesis gas by combustible solid waste chemical chain gasification and interconnected fluidized bed reactor |
| US20150241056A1 (en) * | 2014-02-26 | 2015-08-27 | University Of Connecticut | Reactor for Chemical-Looping Combustion |
| CN207533213U (en) * | 2017-10-31 | 2018-06-26 | 东方电气集团东方锅炉股份有限公司 | A kind of chemical chain reaction device system |
-
2017
- 2017-10-31 CN CN201711047846.0A patent/CN109718724A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332161A (en) * | 1992-06-03 | 1993-12-14 | Tokyo Electric Power Co Inc:The | Chemical loop combustion type power generating plant system |
| CN101638590A (en) * | 2009-08-24 | 2010-02-03 | 中国科学院广州能源研究所 | Method for producing synthesis gas by combustible solid waste chemical chain gasification and interconnected fluidized bed reactor |
| US20150241056A1 (en) * | 2014-02-26 | 2015-08-27 | University Of Connecticut | Reactor for Chemical-Looping Combustion |
| CN207533213U (en) * | 2017-10-31 | 2018-06-26 | 东方电气集团东方锅炉股份有限公司 | A kind of chemical chain reaction device system |
Non-Patent Citations (1)
| Title |
|---|
| CARL LINDERHOLM等: "Chemical-looping combustion of solid fuels - Operation in a 10 kW unit with two fuels, above-bed and in-bed fuel feed and two oxygen carriers, manganese ore and ilmenite" * |
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