CN207538871U - A kind of near-zero release coal gasification power generation system with pollutant catabolic gene - Google Patents
A kind of near-zero release coal gasification power generation system with pollutant catabolic gene Download PDFInfo
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- CN207538871U CN207538871U CN201721636405.XU CN201721636405U CN207538871U CN 207538871 U CN207538871 U CN 207538871U CN 201721636405 U CN201721636405 U CN 201721636405U CN 207538871 U CN207538871 U CN 207538871U
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
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Abstract
A kind of near-zero release coal gasification power generation system with pollutant catabolic gene, including：Gasification furnace, coal gas cooling tower, dust-extraction unit, volatile alkali metal removing means, desulfurizer, water-gas shift device, CO2Separator, expanding machine, fuel cell, catalytic burner, waste heat boiler, steam turbine, electrolytic tank of solid oxide, air separation unit and heat exchanger；By the reasonable arrangement of each unit, the comprehensive utilization of chemical energy, electric energy, thermal energy is realized；The utility model can not only realize the control of major pollutants in coal gasification power generation system, reach CO2Near-zero release purpose, also achieve and provide multiple forms of energy to complement each other, system capacity comprehensive utilization ratio reaches more than 65%.
Description
Technical field
The utility model belongs to coal gasification power generation technical field, more particularly to a kind of near-zero release coal with pollutant catabolic gene
Gasification power generation system.
Background technology
With the use of modern society's fossil energy, energy and environmental problem becomes increasingly conspicuous, the clean utilization of fossil energy
It is extremely urgent.The energy resource structure in China is rich coal, lean gas, few oil, and the clean utilization technological development of coal is even solved in alleviation
Environmental problem plays a crucial role.Coal Gasification Technology can effectively control the various pollutants in coal to discharge, and be coal
The core technology that charcoal clean and effective utilizes is of great significance to solving energy environment issues.
In the energy consumption structure of China, coal proportion is more than 70%, the main dirt generated during coal utilization
It contaminates object and includes sulfur-bearing, nitrogen, chlorine etc. and Determination of Trace Volatile metallic element (such as Hg, Pb, As, Se etc.).In addition, greenhouse gases CO2
Emission control be also one of main problem of World Focusing.At present, China has successfully developed extensive Coal Gasification Technology, in
State patent CN201610562104.0 discloses one kind and " CO before burning can be achieved2The integral coal gasification fuel cell power generation of trapping
System ", the system realize most of CO2Trapping so that CO2Discharge capacity reduces 75%, but still has exhaust gas discharge,
And there is no the control of the pollutants such as Determination of Trace Volatile metallic element (such as Hg, Pb, As, Se etc.).Chinese patent
CN201610888933.8 discloses a kind of " a kind of near-zero release coal generating system and method based on IGCC " and can realize
90% CO in emission-reducing system2, but there are NO in system tail gasXDischarge, be unfavorable for environmental protection.
Invention content
In order to overcome above-mentioned prior art shortcoming, the purpose of this utility model is to provide a kind of with the near of pollutant catabolic gene
Zero-emission coal gasification power generation system, can not only realize the control of major pollutants in coal gasification power generation system, realize CO2's
Near-zero release is also achieved and is provided multiple forms of energy to complement each other, and system capacity comprehensive utilization ratio reaches more than 65%.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of near-zero release coal gasification power generation system with pollutant catabolic gene, including gasification furnace 1, the connection of 1 entrance of gasification furnace
Reaction raw materials coal dust, H2O and O2Outlet, 2 entrance of coal gas of high temperature outlet coal gas cooling tower of gasification furnace 1, coal gas cooling tower 2
High-temperature steam outlet connection 12 entrance of steam turbine, coal gas cooling tower 2 cooling gas exit connection 3 entrance of dust-extraction unit, remove
The clean gas exit of dirt device 3 be sequentially communicated volatile alkali metal removing means 4, desulfurizer 5, water-gas shift device 6,
The anode-side of CO2 separators 7, expanding machine 8 and fuel cell 9, the cathode side of fuel cell 9 are passed through to pass through to air blower 13
The hot-air of third heat exchanger 17,10 entrance of anode-side high-temperature tail gas outlet catalytic burner of fuel cell 9, catalysis combustion
The outlet of burner 10 divides two-way, connects 11 entrance of waste heat boiler all the way, and another way connection 18 entrance of electrolytic tank of solid oxide is remaining
The gas vent connection First Heat Exchanger 15 of heat boiler 11.
Reaction raw materials coal dust use into 1 entrance of gasification furnace comes from the high pressure N of air separation unit 142Conveying.
Into the O of 1 entrance of gasification furnace2From air separation unit 14.
The utility model can not only realize the control of major pollutants in coal gasification power generation system, reach CO2Nearly zero
The purpose of discharge, also achieves and provides multiple forms of energy to complement each other, and system capacity comprehensive utilization ratio reaches more than 65%.
Description of the drawings
Fig. 1 is near-zero release coal gasification power generation system schematic of the utility model with pollutant catabolic gene.
Specific embodiment
The embodiment of the utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the utility model provides a kind of near-zero release coal gasification power generation system with pollutant catabolic gene.
Embodiment 1：In the present embodiment, a kind of near-zero release coal gasification power generation system with pollutant catabolic gene includes gasification
Stove 1,1 entrance of gasification furnace connection reaction raw materials coal dust, H2O and O2Outlet, the coal gas of high temperature outlet coal gas cooling of gasification furnace 1
2 entrance of tower, high-temperature steam outlet connection 12 entrance of steam turbine of coal gas cooling tower 2, the cooling gas exit of coal gas cooling tower 2 connect
3 entrance of logical dust-extraction unit, the clean gas exit of dust-extraction unit 3 are sequentially communicated volatile alkali metal removing means 4, desulfurizer
5th, the anode-side of water-gas shift device 6, CO2 separators 7, expanding machine 8 and fuel cell 9, the cathode side of fuel cell 9 are passed through
Come to air blower 13 hot-air by third heat exchanger 17, the anode-side high-temperature tail gas outlet catalysis combustion of fuel cell 9
10 entrance of burner, the outlet of catalytic burner 10 divide two-way, connect 11 entrance of waste heat boiler, another way connection solid oxidation all the way
18 entrance of object electrolytic cell, the gas vent connection First Heat Exchanger 15 of waste heat boiler 11..
1 entrance of gasification furnace is passed through reaction raw materials coal dust, H2O and O2, reaction raw materials coal dust, which uses, comes from air separation unit 14
High pressure N2Conveying, O2From air separation unit 14, the coal gas of high temperature for reacting generation is exported by gasification furnace 1 into coal gas cooling tower 2,
In coal gas cold-zone, generation high-temperature steam in top of tower outlet enters steam turbine 12 and generates electricity, and coal gas after cooling enters dust-extraction unit 3, by
The clean coal gas of the outlet of dust-extraction unit 3 out enters volatile alkali metal removing means 4, removes the pollutants such as Hg, Pb, As, Se,
It removes the coal gas after volatile alkali metal to enter the completion desulfurization of desulfurizer 5 and carry out sulfur recovery, the coal come out from desulfurizer 5
Gas enters water-gas shift device 6, and the CO contents after transformation in coal gas are less than 1%, and the hydrogen-rich gas after transformation enters CO2Point
From device 7, by the CO after separation2It is trapped, from CO2The hydrogen-rich gas that separator 7 comes out is sent into combustion after expanding machine 8
The anode-side of material cell apparatus 9 generates electricity, and fuel battery negative pole side is passed through to air blower 13 by third heat exchanger 17
Hot-air, electrical energy transportation to power grid, the high-temperature tail gas come out from 9 anode of fuel cell enter catalytic burner 10, completely not anti-
The hydrogen answered and the O for coming from air separation unit 142It is reacted, the CO come out from catalytic burner 102With vapor gaseous mixture one
Part enters waste heat boiler 11, steam turbine 12 is driven to produce electricl energy and be delivered to power grid, another part enters soild oxide
Electrolytic cell 18 generates CO and H2, fuel or processing other chemicals are may be used as, electrolytic cell energy source is in solar energy or wind energy.
The gas come out from waste heat boiler 11 is after First Heat Exchanger 15 by CO2Trapping.
The principal goods stream energy of system mainly has the chemical energy being stored in coal to be converted into electric energy, and being converted for electric energy is derived from
Two parts, a part to generate electricity as high-temperature fuel cell, and a part is come as steam turbine power generation.High-temperature fuel cell power generation effect
Rate reaches 51%, and on the one hand the heat source of steam turbine carrys out the heat exchange as coal gas cooling tower 2, on the other hand come as catalytic burner
Waste heat boiler 11 after 10, generating efficiency 31% deduct equipment consumption 17%, and comprehensive electric generating efficiency is 65%.In addition, system
Also using input energy sources of the renewable energy solar energy as electrolytic tank of solid oxide, tail portion exhaust gas in principal goods stream is utilized
(CO2+H2O high valuable chemicals) are produced, realization is provided multiple forms of energy to complement each other, and the comprehensive utilization ratio of the energy reaches more than 65%.
Claims (3)
1. a kind of near-zero release coal gasification power generation system with pollutant catabolic gene, it is characterised in that：Including gasification furnace (1), gasification
Stove (1) entrance connection reaction raw materials coal dust, H2O and O2Outlet, the coal gas of high temperature outlet coal gas cooling tower (2) of gasification furnace (1)
Entrance, high-temperature steam outlet connection steam turbine (12) entrance of coal gas cooling tower (2), the cooling coal gas of coal gas cooling tower (2) go out
Mouth connection dust-extraction unit (3) entrance, the clean gas exit of dust-extraction unit (3) are sequentially communicated volatile alkali metal removing means
(4), the anode of desulfurizer (5), water-gas shift device (6), CO2 separators (7), expanding machine (8) and fuel cell (9)
Side, the cathode side of fuel cell (9) are passed through to air blower (13) by the hot-air of third heat exchanger (17), fuel cell
(9) anode-side high-temperature tail gas outlet catalytic burner (10) entrance, the outlet of catalytic burner (10) divide two-way, all the way
Waste heat boiler (11) entrance, another way connection electrolytic tank of solid oxide (18) entrance are connected, the gas of waste heat boiler (11) goes out
Mouth connection First Heat Exchanger (15).
2. a kind of near-zero release coal gasification power generation system with pollutant catabolic gene according to claim 1, it is characterised in that：
Reaction raw materials coal dust use into gasification furnace (1) entrance comes from the high pressure N of air separation unit (14)2Conveying.
3. a kind of near-zero release coal gasification power generation system with pollutant catabolic gene according to claim 1, it is characterised in that：
Into the O of gasification furnace (1) entrance2From air separation unit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636405.XU CN207538871U (en) | 2017-11-29 | 2017-11-29 | A kind of near-zero release coal gasification power generation system with pollutant catabolic gene |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721636405.XU CN207538871U (en) | 2017-11-29 | 2017-11-29 | A kind of near-zero release coal gasification power generation system with pollutant catabolic gene |
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| CN207538871U true CN207538871U (en) | 2018-06-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829786A (en) * | 2017-11-29 | 2018-03-23 | 中国华能集团清洁能源技术研究院有限公司 | A kind of near-zero release coal gasification power generation system and electricity-generating method with pollutant catabolic gene |
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2017
- 2017-11-29 CN CN201721636405.XU patent/CN207538871U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829786A (en) * | 2017-11-29 | 2018-03-23 | 中国华能集团清洁能源技术研究院有限公司 | A kind of near-zero release coal gasification power generation system and electricity-generating method with pollutant catabolic gene |
| CN107829786B (en) * | 2017-11-29 | 2023-09-29 | 中国华能集团清洁能源技术研究院有限公司 | Near-zero emission coal gasification power generation system with pollutant control function and power generation method |
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