CN203431842U - Coal/biomass chemical Iooping combustion device - Google Patents
Coal/biomass chemical Iooping combustion device Download PDFInfo
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- CN203431842U CN203431842U CN201320569576.0U CN201320569576U CN203431842U CN 203431842 U CN203431842 U CN 203431842U CN 201320569576 U CN201320569576 U CN 201320569576U CN 203431842 U CN203431842 U CN 203431842U
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- reactor
- coal
- bed
- combustion apparatus
- living beings
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model belongs to the technical field of chemical looping combustion, and particularly relates to a coal/biomass chemical looping combustion device. The device is composed of an air reactor and a fuel reactor, wherein the air reactor and the fuel reactor are connected with each other through a gas-solid separation device and a material returning device; the fuel reactor is composed of multiple stages of reactors, a solid fuel and vapour are gasified in a gasifying bed, and then enter a main fuel reactor together with an oxygen carrier; the main fuel reactor is internally provided with multiple angle-adjustable baffles, and the standing time of the fuel and the oxygen carrier in the reactor and the airflow disturbance are increased, so that the conversion rate of the fuel is improved; the reduced oxygen carrier is sent back to the air reactor by the material returning device for regeneration, and then participates in next circulation. The coal/biomass chemical looping combustion device provided by the utility model has the advantages that the conversion rate of the solid fuel is greatly improved, and large-scale industrial application capacity can be achieved.
Description
Technical field
The utility model belongs to chemical chain burning technology field, particularly a kind of coal/living beings chemical chain combustion apparatus.
Background technology
Burning chemistry chains (Chemical-Looping Combustion, CLC) technology is a kind of efficient, economic, green novel flameless combustion technology, can in the situation that not consuming additional energy, realize CO
2separation and trapping.It is delivered to the oxygen in air reactor in fuel reactor by means of oxygen carrier, thereby has avoided fuel to contact with the direct of air.The carbon dioxide and the steam that in fuel reactor, generate high concentration, only need steam to condense and just can obtain the CO of high concentration
2.
Reactor is that burning chemistry chains is obtained successful key.Metal oxide circulates between two reactors as oxygen carrier, realizes the transfer of oxygen and energy.A suitable CLC reactor, need meet following essential condition: (1) can deliver enough oxygen carriers between fuel reactor and air reactor; (2) can avoid gas between two reactors to exchange; (3) can be reaction the enough reaction time is provided.
What mostly adopt both at home and abroad at present, is the burning chemistry chains system based on interconnected fluidized bed reactor.This reaction system has reaction rate and higher CO faster in the burning chemistry chains of gaseous fuel
2capturing efficiency, but for the burning of solid fuel chemistry chain, owing to being subject to the restriction of structure and operation principle, cause the transmission of energy and the utilization ratio of oxygen carrier lower, therefore require further improvement and optimize the structure of reactor.
Utility model content
Not enough for prior art, the utility model provides a kind of coal/living beings chemical chain combustion apparatus, and object is to optimize and improves burning chemistry chains system response apparatus, realizes efficient, the clean applications of the direct burning chemistry chains of solid fuel.
/ living beings chemical chain combustion apparatus, in this device, air reactor, one-level gas-solid separating device, one-level material-returning device, gasifier bed, main fuel reactor, quick bed, the secondary gas-solid separating device carried are connected by pipeline in turn with secondary material-returning device; Feed arrangement and steam jetting device are set respectively on described gasifier bed; Described gasifier bed, main fuel reactor, quick bed, feed arrangement and the steam jetting device carried form fuel reactor system; Between described air reactor and secondary material-returning device, by refeed line, be connected.
The bottom of described air reactor arranges respectively air distribution plate and air compartment.
Described air reactor is column type fluid bed, in outlet, adds a gas-solid separating device, and flue gas enters heating surface below, and the oxygen carrier of separating enters fuel reactor system.
Described one-level material-returning device is U-shaped valve or L valve.
Described secondary material-returning device is U-shaped valve or L valve.
Described fuel reactor system cross section is square.
Described gasifier bed, main fuel reactor and the quick bottom of bed of carrying arrange respectively air distribution plate and air compartment.
On the air distribution plate of described gasifier bed, main fuel reactor and quick conveying bed, scum pipe is set respectively, lime-ash is discharged from scum pipe.
Described main fuel reactor bottom arranges the air distribution plate of inclination, and the angle of described air distribution plate and horizontal direction is 30 °～60 °, and deflection is carried bed fast.
The adjustable baffle plate of a plurality of relatively staggered angles is set on described main fuel reactor wall, and the angle of described baffle plate and horizontal direction is 20 °～60 °.
The top of described one-level gas-solid separating device is connected with heat-energy utilizing device.
The top of described secondary gas-solid separating device is connected with heat-energy utilizing device.
Described gasifier bed bottom passes into the CO of preheating
2, from steam jetting device, spray into the water vapour of preheating, from feed arrangement input solid fuel, wherein feed arrangement charging aperture height will be higher than refeed line returning charge open height simultaneously.
The solid fuel that described gasifier bed adds is coal or living beings.
The product of described main fuel reactor is through carrying fast bed to send into secondary gas-solid separating device, and the oxygen carrier obtaining after separation reenters air reactor, enters next circulation.
The beneficial effects of the utility model are:
(1) adopt three designs of fuel reactor, collect the one that is located away from of fuel gasification, burning, oxygen carrier and coal ash;
(2) in main fuel reactor, arrange adjustable-angle formula baffle plate, property adjustments angle that can based on fuel, to increase fuel and the oxygen carrier time of staying in reactor, and can add the disturbance of air blast, these all will impel fuel further to react, and improve solid-fuelled transformation efficiency;
(3) carry fast bed can make air-flow accelerate to enter gas-solid separating device, flying dust and finely ground particle substance enter heating surface with flue gas, and the oxygen carrier separating enters material-returning device, then sends air reactor back to.Large lime-ash is discharged from mud hole.This design preferably resolves the separation problem of coal ash and oxygen carrier.
Accompanying drawing explanation
Fig. 1 is the utility model coal/living beings chemical chain combustion apparatus structural representation.
Number in the figure: 1-air reactor; 2-one-level gas-solid separating device; 3-one-level material-returning device; 4-gasifier bed; 5-main fuel reactor; 6-carries bed fast; 7-secondary gas-solid separating device; 8-secondary material-returning device; 9-refeed line; 10-feed arrangement; 11-steam jetting device.
The specific embodiment
The utility model provides a kind of coal/living beings chemical chain combustion apparatus, below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, in this device, air reactor 1, one-level gas-solid separating device 2, one-level material-returning device 3, gasifier bed 4, main fuel reactor 5, quick bed 6, the secondary gas-solid separating device 7 carried are connected by pipeline with secondary material-returning device 8 apparatus structure schematic diagram of the present utility model in turn; Feed arrangement 10 and steam jetting device 11 are set respectively on described gasifier bed 4; Described gasifier bed 4, main fuel reactor 5, quick bed 6, feed arrangement 10 and the steam jetting device 11 carried form fuel reactor systems; Between described air reactor 1 and secondary material-returning device 8, by refeed line 9, be connected.
The bottom of described air reactor 1 arranges respectively air distribution plate and air compartment.
Described air reactor 1 is column type fluid bed.
Described one-level material-returning device 3 is U-shaped valve or L valve.
Described secondary material-returning device 8 is U-shaped valve or L valve.
Described fuel reactor system cross section is square.
Described gasifier bed 4, main fuel reactor 5 and the quick bottom of bed 6 of carrying arrange respectively air distribution plate and air compartment.
On the air distribution plate of described gasifier bed 4, main fuel reactor 5 and quick conveying bed 6, scum pipe is set respectively.
Described main fuel reactor 5 bottoms arrange the air distribution plate of inclination, and the angle of described air distribution plate and horizontal direction is 30 °～60 °, and deflection is carried bed 6 fast.
The adjustable baffle plate of a plurality of relatively staggered angles is set on described main fuel reactor 5 inwalls, and the angle of described baffle plate and horizontal direction is 20 °～60 °.
The top of described one-level gas-solid separating device 2 is connected with heat-energy utilizing device.
The top of described secondary gas-solid separating device 7 is connected with heat-energy utilizing device.
The cross section of described air reactor 1 is circular, and bottom is provided with air distribution plate and mud hole.Three beds of fuel reactor system are square, comprise gasifier bed 4, main fuel reactor 5, the quick bed 6 of carrying.From the air distribution plate of gasifier bed 4 bottoms, pass into CO
2, making oxygen carrier granule keep fluidized state, and from feed arrangement 10 input solid fuels, from steam jetting device, spray into water vapour, solid fuel and steam, in the interior generation water-gasization reaction of gasifier bed 4, produce active CO and the H of chemical property
2, there is preliminary reaction with the oxygen carrier granule that enters the fluidized state of gasifier bed 4 in mist, large lime-ash drops to scum pipe and discharges simultaneously, and the mixture after final reaction enters in main fuel reactor 5 with air-flow, further reaction.Between gasifier bed 4 and main fuel reactor 5, by inclination flue, connect, can reduce flow resistance.When reactant mixture enters after main fuel reactor 5, there is violent reaction in oxygen carrier, coal and coal gasification product.Because main fuel reactor 5 inside are provided with the baffle plate of angle adjustable, the mixture of coal and oxygen carrier can, in the interior generation sharp impacts of main fuel reactor 5, be conducive to carrying out completely of reaction.Baffle plate can aggravate the interior flow perturbation of main fuel reactor 5 in addition, further promotes reaction aggravation, improves fuel conversion.The air distribution plate of main fuel reactor 5 bottoms is provided with scum pipe, and cinder is by its discharge.The air distribution plate of main fuel reactor 5 is obliquely installed, and deflection is carried fast bed, with the angle of horizontal direction be 30 °～60 ° so that mixture can enter rapidly quick conveying bed 6.Carry fast bed 6 interior airflow rates very fast, flue gas enters secondary gas-solid separating device 7 with faster rate, obtains good gas-solid separating effect.The flying dust that flue gas and particle diameter are less is discharged from the top of secondary gas-solid separating device 7, and enters subordinate's heating surface, and solid enters secondary material-returning device 8.Isolated solid enters air reactor 1 through secondary material-returning device 8 and refeed line 9, and the oxygen carrier being reduced is again oxidized at air reactor, starts next circulation.
Embodiment 1:
Adopt the device shown in Fig. 1, solid fuel is selected brown coal, the Fe that oxygen carrier selects hydro-thermal method to prepare
2o
3.Coal dust and steam, in the interior generation water gas reaction of gasifier bed 4, generate CO and H
2mist, then and the Fe that enters
2o
3there is partial reaction.Following reaction mixture enters main fuel reactor 5 with air-flow, vigorous reaction occurs, Fe
2o
3lose oxygen and be reduced, it is oxidized that coal dust and gasification product obtain oxygen.The Fe being finally reduced
2o
3enter air reactor 1, oxidized regeneration again, continues the next circulation of income.In the 72h of operation continuously, the conversion ratio of brown coal is more than 93%, and the loss of oxygen carrier is about 4.5%, CO
2capturing efficiency reach more than 91.5%.
Embodiment 2
Adopt the device shown in Fig. 1, the rice husk of choosing pulverizing is solid fuel, and iron ore powder is oxygen carrier, according to the technique of embodiment 1, carries out burning chemistry chains test.In the 72h of operation continuously, rice husk conversion ratio is more than 94.0%, and the proportion of goods damageds of oxygen carrier are 2.5%, CO
2capturing efficiency be more than 93.1%.
Embodiment 3
Adopt the device shown in Fig. 1, choosing brown coal is fuel, and NiO is oxygen carrier, according to the technique of embodiment 1, carries out burning chemistry chains test.In the 72h of operation continuously, the conversion ratio of brown coal is more than 96.3%, and the proportion of goods damageds of oxygen carrier are 2.5%, CO
2capturing efficiency be more than 95.2%.
Embodiment 4
Adopt the device shown in Fig. 1, the mixture of choosing brown coal and rice husk is fuel, and NiO is oxygen carrier, according to the technique of embodiment 1, carries out burning chemistry chains test.In the 72h of operation continuously, the conversion ratio of brown coal is more than 95.3%, and the proportion of goods damageds of oxygen carrier are 3.4%, CO
2capturing efficiency be more than 94.3%.
Claims (10)
1. coal/living beings chemical chain combustion apparatus, is characterized in that: air reactor in this device (1), one-level gas-solid separating device (2), one-level material-returning device (3), gasifier bed (4), main fuel reactor (5), quick bed (6), the secondary gas-solid separating device (7) carried are connected by pipeline in turn with secondary material-returning device (8); Feed arrangement (10) and steam jetting device (11) are set respectively on described gasifier bed (4); Described gasifier bed (4), main fuel reactor (5), conveying bed (6) fast, feed arrangement (10) and steam jetting device (11) composition fuel reactor system; Between described air reactor (1) and secondary material-returning device (8), by refeed line (9), be connected.
2. a kind of coal/living beings chemical chain combustion apparatus according to claim 1, is characterized in that: described air reactor (1) is column type fluid bed.
3. a kind of coal/living beings chemical chain combustion apparatus according to claim 1, is characterized in that: the bottom of described air reactor (1) arranges respectively air distribution plate and air compartment.
4. a kind of coal/living beings chemical chain combustion apparatus according to claim 1, is characterized in that: described one-level material-returning device (3) is U-shaped valve or L valve.
5. a kind of coal/living beings chemical chain combustion apparatus according to claim 1, is characterized in that: described secondary material-returning device (8) is U-shaped valve or L valve.
6. a kind of coal/living beings chemical chain combustion apparatus according to claim 1, is characterized in that: described fuel reactor system cross section is square.
7. a kind of coal/living beings chemical chain combustion apparatus according to claim 1, is characterized in that: the bottom of described gasifier bed (4), main fuel reactor (5) and conveying bed (6) fast arranges respectively air distribution plate and air compartment.
8. a kind of coal/living beings chemical chain combustion apparatus according to claim 7, is characterized in that: on the air distribution plate of described gasifier bed (4), main fuel reactor (5) and conveying bed (6) fast, scum pipe is set respectively.
9. a kind of coal/living beings chemical chain combustion apparatus according to claim 7, it is characterized in that: described main fuel reactor (5) bottom arranges the air distribution plate of inclination, the angle of described air distribution plate and horizontal direction is 30 °～60 °, and deflection is carried bed (6) fast.
10. a kind of coal/living beings chemical chain combustion apparatus according to claim 1, it is characterized in that: the adjustable baffle plate of a plurality of relatively staggered angles is set on described main fuel reactor (5) inwall, and the angle of described baffle plate and horizontal direction is 20 °～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569576.0U CN203431842U (en) | 2013-09-13 | 2013-09-13 | Coal/biomass chemical Iooping combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569576.0U CN203431842U (en) | 2013-09-13 | 2013-09-13 | Coal/biomass chemical Iooping combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431842U true CN203431842U (en) | 2014-02-12 |
Family
ID=50060877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569576.0U Expired - Fee Related CN203431842U (en) | 2013-09-13 | 2013-09-13 | Coal/biomass chemical Iooping combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431842U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964570A (en) * | 2019-12-24 | 2020-04-07 | 东南大学 | Device and method for preparing hydrogen through coal/biomass chemical chain gasification |
| CN111115570A (en) * | 2019-12-31 | 2020-05-08 | 西安交通大学 | Chemical chain conversion recovery non-magnetic metal oxide parallel hydrogen production system and process |
-
2013
- 2013-09-13 CN CN201320569576.0U patent/CN203431842U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964570A (en) * | 2019-12-24 | 2020-04-07 | 东南大学 | Device and method for preparing hydrogen through coal/biomass chemical chain gasification |
| CN110964570B (en) * | 2019-12-24 | 2021-06-25 | 东南大学 | Device and method for preparing hydrogen through coal/biomass chemical chain gasification |
| CN111115570A (en) * | 2019-12-31 | 2020-05-08 | 西安交通大学 | Chemical chain conversion recovery non-magnetic metal oxide parallel hydrogen production system and process |
| CN111115570B (en) * | 2019-12-31 | 2022-02-22 | 西安交通大学 | Chemical chain conversion recovery non-magnetic metal oxide parallel hydrogen production system and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |