CN106244247A - A kind of Gas Production system of environmental protection and energy saving - Google Patents
A kind of Gas Production system of environmental protection and energy saving Download PDFInfo
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- CN106244247A CN106244247A CN201610709310.XA CN201610709310A CN106244247A CN 106244247 A CN106244247 A CN 106244247A CN 201610709310 A CN201610709310 A CN 201610709310A CN 106244247 A CN106244247 A CN 106244247A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/466—Entrained flow processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
- C10J2300/1628—Ash post-treatment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
nullThe present invention relates to the Gas Production system of a kind of environmental protection and energy saving，Including recirculating fluidized bed、First gas-solid separating device、Second gas-solid separating device、Air flow bed and caisson，Recirculating fluidized bed has charging aperture、Air inlet、First gas outlet，It is provided with gas access and gas outlet on first gas-solid separating device and the second gas-solid separating device，There is on second gas-solid separating device gas-solid mixture outlet，Air flow bed has gas-solid mixture entrance and the second gas outlet，Pipeline communication is passed through in the gas outlet of the first gas-solid separating device and the gas access of the second gas-solid separating device，The gas feed by pipeline communication the first gas-solid separating device of first gas outlet，Gas-solid mixture exports by pipeline communication gas-solid mixture entrance，The gas outlet of the second gas-solid separating device and the second gas outlet of air flow bed are by pipeline communication caisson.The present invention produce Load Regulation flexibly, stable and reliable operation, running rate high, significantly reduce the production cost of coal gas.
Description
Technical field
The present invention relates to Gas Production field, be specifically related to the Gas Production system of a kind of environmental protection and energy saving.
Background technology
At present, domestic and international Coal Gasification Technology is broadly divided into by gasification mode: fixed bed lump coal gasification technology；Circulation recycle stream
Change bed bed pulverized coal gasification technology；Entrained flow bed gasification technology.
Fixed bed (moving bed) Coal Gasification Technology, is lump coal air vapor gas making.Its advantage: be technology maturation, equipment
Small investment, especially batch (-type) static bed coal gasification need not pure oxygen, just can obtain without nitrogen with steam and air gas making
Synthesis gas.Its shortcoming: in coal ash, residual carbon content is high (10%～30%), coal limits tight, and gasify high-quality lump coal, causes many
Enterprise's expense of raw materials is high, and production cost remains high, and its type of furnace mainly has single hop stove (GEGas, Lu Qi, MERC of dry method ash discharge
Deng), the two-stage furnace (ATC/Wel lman, FW-stoic, Rule-100) of dry method ash discharge, slag tap fixed-bed gasification furnace
(BGG/Lurgi, GFETC), producing phenol water has pollution.
Fluidized bed pulverized coal gasification technology, is to be raw material with fine coal, with oxygen steam for the continuous gas making of gasifying agent.Its
Advantage: directly with cheap various powder coal as raw material, Gas Production ability is moderate, gasification efficiency is high, low in the pollution of the environment, coal
Gas production cost is low.Its shortcoming: carbon residue in equipment investment is higher, flying dust amount is big and residual carbon content is high (20%～30%), coal ash
Content higher (5～15%), i.e. has a vomiting and dirarrhea difficult problem.The main type of furnace have Wen Keer gasification furnace, high temperature Wen Keer gasification furnace,
The gasification of CO2 acceptor, the gasification of U-Gas ash agglomerating recirculating fluidized bed, western room recirculating fluidized bed, Shanxi coalification institute of Chinese Academy of Sciences ash agglomerating
Recirculating fluidized bed etc..
Air-flow bed coal-gasification technology, be fines be raw material, with oxygen steam for the continuous gas making of gasifying agent, liquid arrange
Slag.Its advantage is that Gas Production ability is high, gasification efficiency is high, low in the pollution of the environment, residual carbon content higher (2～7%), coal in coal ash
Gas production cost is low.Its shortcoming is: equipment investment is high, fineness of pulverized coal requires height, and Grin-ding energ7 is high；High (1400 DEG C of reaction temperature
Left and right) time short (several seconds) but charging coal dust can not preheat, and oxygen consumption is big, and Energy harvesting is unreasonable, especially water-coal-slurry charging
Oxygen consumption is high, and carbon effective rate of utilization is relatively low.The type of furnace mainly has K-T coal gasification, texaco coal gasification method, two sections of entrained flow gasifications
Method, domestic still in research.
These coal gasification methods according to the different requirement of user, use different gasifying agent (as air-steam, oxygen-
Water vapour, oxygen-enriched-steam) different calorific value and the coal gas of component can be produced, as fuel gas, synthesis gas and reducing gases and
Hydrogen or combined cycle generation.
Summary of the invention
The technical problem to be solved is to provide the Gas Production system of a kind of environmental protection and energy saving, and the gasification of this system is strong
Degree is big, produce Load Regulation flexibly, stable and reliable operation, running rate are high, significantly reduces the production cost of coal gas.
The technical scheme is that the Gas Production system of a kind of environmental protection and energy saving, including
Recirculating fluidized bed, the first gas-solid separating device, the second gas-solid separating device, air flow bed and caisson, described recirculating fluidized bed
Have enter its internal charging aperture for fine coal, supplied gas enters its internal air inlet, for the coal generated that gasifies therein
The first gas outlet that air-flow goes out, described first gas-solid separating device and the second gas-solid separating device are provided with gas access and
Gas outlet, described second gas-solid separating device has gas-solid mixture outlet, and described air flow bed has gas-solid mixture and enters
Mouth and the second gas outlet, the gas outlet of described first gas-solid separating device and the gas access of the second gas-solid separating device are passed through
Pipeline communication, the first gas outlet of described recirculating fluidized bed is entered by the gas of the first gas-solid separating device described in pipeline communication
Mouthful, the gas-solid mixture outlet of described second gas-solid separating device is connected by the gas-solid mixture entrance of pipeline with described air flow bed
Logical, the gas outlet of described second gas-solid separating device and the second gas outlet of described air flow bed are filled by pipeline communication gas storage
Put.
As preferably, described first gas-solid separating device is additionally provided with the outlet of crude product gas-solid mixture, described recycle stream
Change and be additionally provided with the crude product gas by pipeline Yu the crude product gas-solid mixture outlet of described first gas-solid separating device on bed
Solid mixture entrance.
As preferably, the bottom of described air flow bed is provided with solid discharge, and this solid discharge connects one by residue pipeline
Slag recovering case.
As preferably, described residue pipeline being provided with cooling heat exchange device, it is cold that described cooling heat exchange device has input
The outlet of output after the water inlet of water and confession cold water heat exchange.
As preferably, the top of described air flow bed is additionally provided with and is connected by the air inlet of pipeline with described recirculating fluidized bed
High-temperature gas outlet.
As preferably, described first gas-solid separating device is cyclone separator, and described second gas-solid separating device is nanofiltration
Membrane separator.
The invention has the beneficial effects as follows: 1. native system has recirculating fluidized bed and air flow bed two parts simultaneously, it is achieved that powder
Coal grading is gasified；2. the intensity of gasification is big, and equipment volume is little, and steel consumption is low, and fixed investment is substantially reduced；It is the most simple to operate,
Start-stop car is convenient, produces Load Regulation flexible, and seriality is good, and coal adaptability is strong；4. by arranging two gas-solid separating devices,
First gas-solid separating device intercepts mixing semicoke gas and returns in recirculating fluidized bed, makes raw material be fully utilized；5. air-flow
The High Temperature Gas generated in Chuan is recirculating fluidized bed heat supply, and residue is discharged cooling and reclaimed, can be as the raw materials for production of construction material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In accompanying drawing, the list of parts representated by each label is as follows:
1, recirculating fluidized bed, the 2, first gas-solid separating device, the 3, second gas-solid separating device, 4, air flow bed, 5, gas storage dress
Put, 6, Slag recovering case, 7, residue pipeline, 8, cooling heat exchange device.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
Non-for limiting the scope of the present invention.
As it is shown in figure 1, the Gas Production system of a kind of environmental protection and energy saving, including recirculating fluidized bed the 1, first gas-solid separating device
2, the second gas-solid separating device 3, air flow bed 4 and caisson 5.
Described first gas-solid separating device 2 selects cyclone separator, and the separation efficiency of cyclone separator reaches 97%, Ke Yifen
From particle diameter more than or equal to the solid particle of 10 μm, substantial amounts of semicoke granule can be intercepted.
Described second gas-solid separating device 3 selects nanofiltration membrane separation device, and the separation efficiency of nanofiltration membrane separation device is close
100%, almost all solids material in production process can be intercepted so that it is the degree of purity of the coal gas of isolated
High.
Described recirculating fluidized bed 1 have enter its internal charging aperture for fine coal, supplied gas enters its internal air inlet,
The first gas outlet that the coal gas generated for gasifying therein flows out, described recirculating fluidized bed 1 is additionally provided with crude product gas-solid and mixes
Compound entrance.
First gas-solid separating device 2 and the second gas-solid separating device 3 are respectively provided with gas access and gas outlet, and described first
It is additionally provided with the outlet of crude product gas-solid mixture on gas-solid separating device 2, described second gas-solid separating device 3 is additionally provided with gas-solid
Mixture outlet.
Described air flow bed 4 has gas-solid mixture entrance and the second gas outlet, and the bottom of described air flow bed 4 is provided with residue
Outlet, the top of described air flow bed 4 is provided with high-temperature gas outlet.
First gas outlet of described recirculating fluidized bed 1 is entered by the gas of the first gas-solid separating device 2 described in pipeline communication
Mouthful, the crude product gas-solid mixture entrance of described recirculating fluidized bed 1 is by the crude product gas of pipeline with described first gas-solid separating device 2
Solid mixture outlet.
Pipeline is passed through in the gas outlet of described first gas-solid separating device 2 and the gas access of the second gas-solid separating device 3
Connection, the gas-solid mixture outlet of described second gas-solid separating device 3 is entered by the gas-solid mixture of pipeline with described air flow bed 4
Mouth connection.
Pipeline communication is passed through in the described gas outlet of the second gas-solid separating device 3 and the second gas outlet of described air flow bed 4
Caisson 5, the high-temperature gas outlet of described air flow bed 4 is connected by the air inlet of pipeline with described recirculating fluidized bed 1, described
The solid discharge of air flow bed 4 connects a Slag recovering case 6 by residue pipeline 7.
Being provided with cooling heat exchange device 8 on the residue pipeline 7 of described air flow bed 4, it is defeated that described cooling heat exchange device 8 has one
Enter the water inlet of cold water and for the outlet of output after cold water heat exchange.Described cooling heat exchange device 8 has a plurality of being spirally wound on
Heat exchanger tube on described residue pipeline 7 outer wall.
When the present invention works, fine coal is injected recirculating fluidized bed 1 inner chamber from charging aperture, inject steam and oxygen from air inlet
Gas, fine coal and steam, oxygen at high temperature water generation reaction coal gas, the water gas of gasification sequentially passes through the first gas solid separation dress
Put 2 and second gas-solid separating device 3 carry out gas solid separation, isolate the gas containing crude product semicoke at the first gas-solid separating device 2
Solid mixture returns to recirculating fluidized bed 1 inner chamber from the outlet of crude product gas-solid mixture through pipeline and continues to participate in reaction, it is ensured that raw material
High usage, the gas-solid mixture that the second gas-solid separating device 3 is isolated containing thin product semicoke goes out from thin product gas-solid mixture
Mouth is transported to air flow bed 4 through pipeline, carries out continuing reaction in air flow bed 4.The second isolated readymade coal of gas-solid separating device 3
The readymade coal edema caused by disorder of QI that gas and air flow bed 4 reaction generate is not delivered to caisson 5 by pipeline, carries out the storage of coal gas, subpackage
Etc. subsequent handling.In air flow bed 4, the residue of residual solid discharge bottom it enters Slag recovering case 6 through residue pipeline 7
Recycle, can be as the raw materials for production of construction material.
The utilization rate of fine coal, in the production process of coal gas, is greatly improved by native system, and utilization rate reaches
More than 99.5%, residue carbon content rate is less than 0.5%.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (6)
1. the Gas Production system of environmental protection and energy saving, it is characterised in that include recirculating fluidized bed (1), the first gas solid separation dress
Putting (2), the second gas-solid separating device (3), air flow bed (4) and caisson (5), described recirculating fluidized bed (1) has for fine coal
Enter its internal charging aperture, supplied gas enters its internal air inlet, the coal gas that generates for gasifying therein flows out the
One gas outlet, described first gas-solid separating device (2) and the second gas-solid separating device (3) are provided with gas access and gas
Outlet, described second gas-solid separating device (3) has gas-solid mixture outlet, and described air flow bed (4) has gas-solid mixture
Entrance and the second gas outlet, the gas outlet of described first gas-solid separating device (2) and the gas of the second gas-solid separating device (3)
Entrance passes through pipeline communication, and the first gas outlet of described recirculating fluidized bed (1) is filled by the first gas solid separation described in pipeline communication
Putting the gas feed of (2), the gas-solid mixture outlet of described second gas-solid separating device (3) is by pipeline and described air flow bed
(4) the of gas-solid mixture entrance connection, the gas outlet of described second gas-solid separating device (3) and described air flow bed (4)
Pipeline communication caisson (5) is passed through in two gas outlets.
The Gas Production system of a kind of environmental protection and energy saving the most according to claim 1, it is characterised in that described first gas-solid divides
On device (2), it is additionally provided with the outlet of crude product gas-solid mixture, described recirculating fluidized bed (1) is additionally provided with by pipeline and institute
State the crude product gas-solid mixture entrance of the crude product gas-solid mixture outlet of the first gas-solid separating device (2).
The Gas Production system of a kind of environmental protection and energy saving the most according to claim 1, it is characterised in that described air flow bed (4)
Bottom be provided with solid discharge, this solid discharge connects a Slag recovering case (6) by residue pipeline (7).
The Gas Production system of a kind of environmental protection and energy saving the most according to claim 3, it is characterised in that described residue pipeline
(7) being provided with cooling heat exchange device (8) on, described cooling heat exchange device (8) has the water inlet of input cold water and changes for cold water
The outlet of output after heat.
5. according to the Gas Production system of a kind of environmental protection and energy saving described in any one of Claims 1-4, it is characterised in that described
The top of air flow bed (4) is additionally provided with the high-temperature gas connected by the air inlet of pipeline with described recirculating fluidized bed (1) and exports.
6. according to the Gas Production system of a kind of environmental protection and energy saving described in any one of Claims 1-4, it is characterised in that described
First gas-solid separating device (2) is cyclone separator, and described second gas-solid separating device (3) is nanofiltration membrane separation device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610709310.XA CN106244247A (en) | 2016-08-23 | 2016-08-23 | A kind of Gas Production system of environmental protection and energy saving |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610709310.XA CN106244247A (en) | 2016-08-23 | 2016-08-23 | A kind of Gas Production system of environmental protection and energy saving |
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| CN106244247A true CN106244247A (en) | 2016-12-21 |
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| CN201610709310.XA Pending CN106244247A (en) | 2016-08-23 | 2016-08-23 | A kind of Gas Production system of environmental protection and energy saving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990322A (en) * | 2017-12-28 | 2018-05-04 | 华西能源工业股份有限公司 | A kind of waste incineration CFB boiler of cyclone separator and membrane type separation apparatuses in series |
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| CN101440310A (en) * | 2007-11-23 | 2009-05-27 | 山东科技大学 | Process for fluidized bed classification gasification of dust coal |
| CN101747943A (en) * | 2008-12-01 | 2010-06-23 | 中国农业科学院农业环境与可持续发展研究所 | Method by utilizing livestock manure to produce hydrogenous gas and other products in a step-by-step thermal decomposition way and device |
| JP2011099066A (en) * | 2009-11-09 | 2011-05-19 | Ihi Corp | Circulating fluidized bed type gasification method and apparatus therefor |
| CN202063889U (en) * | 2011-04-07 | 2011-12-07 | 刘力学 | Novel double-effect biogas purifier |
| CN102373089A (en) * | 2010-08-18 | 2012-03-14 | 中国科学院过程工程研究所 | Coal gasification method |
-
2016
- 2016-08-23 CN CN201610709310.XA patent/CN106244247A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440310A (en) * | 2007-11-23 | 2009-05-27 | 山东科技大学 | Process for fluidized bed classification gasification of dust coal |
| CN101747943A (en) * | 2008-12-01 | 2010-06-23 | 中国农业科学院农业环境与可持续发展研究所 | Method by utilizing livestock manure to produce hydrogenous gas and other products in a step-by-step thermal decomposition way and device |
| JP2011099066A (en) * | 2009-11-09 | 2011-05-19 | Ihi Corp | Circulating fluidized bed type gasification method and apparatus therefor |
| CN102373089A (en) * | 2010-08-18 | 2012-03-14 | 中国科学院过程工程研究所 | Coal gasification method |
| CN202063889U (en) * | 2011-04-07 | 2011-12-07 | 刘力学 | Novel double-effect biogas purifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990322A (en) * | 2017-12-28 | 2018-05-04 | 华西能源工业股份有限公司 | A kind of waste incineration CFB boiler of cyclone separator and membrane type separation apparatuses in series |
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Application publication date: 20161221 |