CN209052635U - A kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas - Google Patents
A kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas Download PDFInfo
- Publication number
- CN209052635U CN209052635U CN201821779388.XU CN201821779388U CN209052635U CN 209052635 U CN209052635 U CN 209052635U CN 201821779388 U CN201821779388 U CN 201821779388U CN 209052635 U CN209052635 U CN 209052635U
- Authority
- CN
- China
- Prior art keywords
- unit
- gas
- entrance
- natural gas
- sulphur carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Industrial Gases (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A kind of dry coal powder gasification IGCC power plant machine method for co-production of synthetic natural gas that the utility model improves, including gasification furnace, gas cooler, desulfurization unit, gas turbine, waste heat boiler, steam turbine, sulfur recovery unit, sulphur carbon take off unit, sulphur carbon separative unit, methanation unit and natural gas storage tank altogether；Allow IGCC system to have peak modulation capacity in power grid by way of adjusting synthesis gas in Generation Side and chemical industry synthesis side allocation proportion in power generation part coproduction chemical industry part, guarantee generation load in peak of power consumption, guarantees LNG yield when with gas peak；The system enables to the converting heat between Generation Side and chemical industry synthesis side sufficiently to couple with matter utilization simultaneously, realizes the cascade utilization between energy and synthesis gas components, is finally reached the maximization of energy conversion efficiency；It can increase the annual utilization hours of capital equipment in the case where keeping gasification unit and cryogenic air separation unit system loading constant, improve the economy of system.
Description
Technical field
The utility model belongs to Clean Coal Power Generating Technologies field, and in particular to a kind of dry pulverized coal gas of co-production of synthetic natural gas
Change IGCC power plant.
Background technique
There are improved efficiencies and CO for existing coal-based power generation technology2The problem of emission reduction, needs to develop efficient, cleaning, CO2Nearly zero
The coal power technology of discharge.IGCC integral gasification combined circulation technology by clean Coal Gasification Technology with efficiently combine and follow
Ring generation technology combines, it is easy to accomplish CO2Trapping, is one of important technology route of green coal-fired power.IGCC technology is at present
Technology period of expansion, the potentiality still greatly improved with efficiency are the coals for most possibly taking the lead in breaking through 50% power supply efficiency at no distant date
Base generation technology, and can generate electricity and be combined with high-temperature fuel cell, further increase the net efficiency of coal-based power generation technology.IGCC has
Natural pollution reduction advantage.The SO of China Tianjin IGCC Demonstration Station2, dust actual discharge be below 1mg/Nm3, NOx
Discharge is lower than 25mg/Nm3, reached the near-zero release of pollutant；And conventional coal unit is after minimum discharge is transformed, SO2Row
It lowers in 35mg/Nm3, dust is lower than 5mg/Nm3, NOx is lower than 50mg/Nm3, still have no small gap with the environmental-protecting performance of IGCC.
And the minimum discharge of conventional coal unit be based on low-sulfur coal, there are also desulfurized gypsum, the escaping of ammonia, waste denitration catalyst,
The problem of secondary pollutions such as desulfurization wastewater.In addition, CO before the burning based on IGCC2Trapping has CO2Concentration is high, partial pressure is high, gas
The small advantage for the treatment of capacity, trapping energy consumption are significantly less than CO after the burning of conventional coal unit2Low cost may be implemented in Trapping ways
Trap CO2。
IGCC technology system is more complex, and unit price at this stage is high, and cost of electricity-generating is also difficult to competing with conventional coal unit
It strives.Meanwhile there is also the problems of flexibility difference by IGCC, do not adapt to power grid to the depth peak regulation demand in coal base power station, mainly
The reason is that the cryogenic air separation unit system loading response speed in IGCC system is slow.
But IGCC system can keep gasification unit and cryogenic air separation unit system loading it is constant or in the case where, Ke Yitong
Coproduction chemicals is crossed, guarantees the long period oepration at full load of gasification unit and cryogenic air separation unit system, increases the annual interest of capital equipment
With hourage, the economy of system is improved；Can also by coproduction part chemical products, by adjust synthesis gas in Generation Side and
The mode of chemical industry synthesis side allocation proportion, allows IGCC system to have peak modulation capacity in power grid.
Summary of the invention
The purpose of this utility model is to provide a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas, solutions
Existing IGCC system of having determined haves the defects that the depth peak regulation demand for not adapting to power grid to coal base power station, and the utility model is logical
Co-production of synthetic natural gas is crossed, the annual utilization hours of capital equipment are increased, improves the economy of system.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of dry coal powder gasification IGCC power plant for co-production of synthetic natural gas that the utility model improves, including gasification
Furnace, gas cooler, desulfurization unit, gas turbine, waste heat boiler, steam turbine, sulfur recovery unit, sulphur carbon take off unit, sulphur carbon altogether
Separative unit, methanation unit and natural gas storage tank, wherein the entrance of the raw gas outlet connection gas cooler of gasification furnace,
The entrance of the outlet connection preboiler of gas cooler, the entrance of the outlet connection steam turbine of preboiler；
The entrance and sulphur carbon of the outlet connection desulfurization unit of gas cooler take off the entrance of unit altogether, wherein desulfurization unit
Clean gas outlet connection gas turbine fuel gas entrance, the sour gas outlet connection sulfur recovery unit of desulfurization unit
Entrance；
Sulphur carbon takes off the unstripped gas entrance of the gas exit connection methanation unit of unit, the synthesis of natural of methanation unit altogether
The entrance of gas outlet connection natural gas storage tank, the outlet of natural gas storage tank connect gas turbine；
Sulphur carbon takes off the entrance of the gas vent connection sulphur carbon separative unit of unit altogether, and the sour gas of sulphur carbon separative unit goes out
The entrance of mouth connection sulfur recovery unit.
It preferably, further include cryogenic air separation unit system, the oxygen outlet of cryogenic air separation unit system connects the oxygen intake of gasification furnace,
The fuel gas entrance of the nitrogen outlet connection gas turbine of cryogenic air separation unit system.
Preferably, the outlet of gas cooler is connected with dust removing units, wherein the outlet of dust removing units connects desulfurization unit
Entrance and sulphur carbon altogether take off unit entrance.
Preferably, the entrance that sulphur carbon takes off unit altogether is connected with sulphur-resistant conversion unit.
Preferably, gasification furnace is provided with slag-drip opening.
Preferably, the outlet of methanation unit is connected with the entrance and natural gas line for compressing and liquefying unit.
Compared with prior art, the beneficial effects of the utility model are:
The dry coal powder gasification IGCC power plant of a kind of co-production of synthetic natural gas provided by the utility model, in power generation part
Coproduction chemical industry part, by way of adjusting synthesis gas in Generation Side and chemical industry synthesis side allocation proportion, so that IGCC system can
To have peak modulation capacity in power grid, guarantee generation load in peak of power consumption, guarantees LNG yield when with gas peak；This is
It unites while the converting heat between Generation Side and chemical industry synthesis side being enabled to sufficiently to couple with matter utilization, realize energy and close
At the cascade utilization between gas component, it is finally reached the maximization of energy conversion efficiency；Gasification unit and deep cooling can kept empty
In the case that subsystem load is constant, increase the annual utilization hours of capital equipment, improves the economy of system.
Further, chemical industry synthesis side generate natural gas a part can be sent into natural gas line or LNG is made, send to
Other natural gas users, another part can be sent into natural gas storage tank, fuel gas when as gas turbine starting or underload.
Detailed description of the invention
Fig. 1 is the utility model dry coal powder gasification IGCC power plant structural schematic diagram；
Wherein, 1, gasification furnace 2, gas cooler 3, dust removing units 4, desulfurization unit 5, gas turbine 6, waste heat boiler 7, vapour
Turbine 8, cryogenic air separation unit system 9, sulfur recovery unit 10, sulphur-resistant conversion unit 11, sulphur carbon take off unit 12, sulphur carbon separative unit altogether
13, methanation unit 14, compress and liquefy unit 15, natural gas storage tank.
Specific embodiment
With reference to the accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas provided by the utility model,
For improving IGCC system year hours of operation, cost of electricity-generating is reduced, while can also be achieved the depth power peak regulation of IGCC system
Function.In order to achieve the above objectives, a kind of dry coal powder gasification IGCC of co-production of synthetic natural gas provided by the utility model, which generates electricity, fills
It sets, including gasification furnace 1, gas cooler 2, dust removing units 3, desulfurization unit 4, gas turbine 5, waste heat boiler 6, steam turbine 7, depth
Cold space division system 8, sulfur recovery unit 9, sulphur-resistant conversion unit 10, sulphur carbon take off unit 11, sulphur carbon separative unit 12, methanation list altogether
Member 13 compresses and liquefies unit 14 and natural gas storage tank 15, wherein the raw gas outlet connection gas cooler 2 of gasification furnace 1 enters
Mouthful, the entrance of the outlet connection dust removing units 3 of gas cooler 2 and the entrance of waste heat boiler 6, the outlet connection of dust removing units 3
The outlet connection sulphur carbon of the entrance of desulfurization unit 4 and the entrance of sulphur-resistant conversion unit 10, sulphur-resistant conversion unit 10 takes off unit 11 altogether
Entrance, sulphur carbon altogether take off unit 11 outlet connection methanation unit 13 unstripped gas entrance, the synthesis day of methanation unit 13
Right gas outlet connection compresses and liquefies the entrance, the entrance of natural gas storage tank 15 and the entrance of natural gas line of unit 14；
The fuel gas entrance of the outlet connection gas turbine 5 of desulfurization unit 4 and the entrance of sulfur recovery unit 9, sulfur recovery list
The entrance of member 9 is also connected with the outlet of sulphur carbon separative unit 12, and the entrance connection sulphur carbon of sulphur carbon separative unit 12 takes off unit 11 altogether
Carbon dioxide is discharged in outlet, the outlet of sulphur carbon separative unit 12, and sulphur is discharged in sulfur recovery unit 9；
The oxygen intake of the oxygen outlet connection gasification furnace 1 of cryogenic air separation unit system 8, the nitrogen outlet of cryogenic air separation unit system 8
Connect the fuel gas entrance of gas turbine 5；The entrance of the outlet connection waste heat boiler 6 of gas turbine 5, the outlet of waste heat boiler 6
Connect the entrance of steam turbine 7；
The entrance of the outlet connection gas turbine 5 of natural gas storage tank 15.
The system flow are as follows:
Raw coal becomes dry pulverized coal after pretreatment and is sent into gasification furnace 1, raw material of one middle pressure steam as gasification reaction
It is sent into gasification furnace 1 simultaneously, the industrial pure oxygen that dry pulverized coal generates in gasification furnace 1 with middle pressure steam and cryogenic air separation unit system 8 is sent out
Raw gasification reaction, generates raw gas, and the lime-ash that gasification generates is excluded from gasification furnace 1；
Raw gas is cooled in gas cooler 2, while generating saturated vapor, which is sent to waste heat boiler
6 continue the feeding power generation of steam turbine 7 after overheat；
Cooling raw gas can be sent to power generation part or chemical industry synthesis part respectively after dust removing units 3, wherein
When being sent to generator unit, the raw gas after cooling and dedusting is using desulfurization unit 4, the sour gas of sweetening process generation
Body is sent into sulfur recovery unit 9 and generates sulphur, and the clean gas that sweetening process generates is sent into the acting hair of gas turbine 5 as fuel gas
Electricity, the high-temperature flue gas that gas turbine 5 generates are sent into waste heat boiler 6, and the steam that waste heat boiler 6 generates is sent into steam turbine 7 and generates electricity.
When being sent to chemical industry synthesis part, after sulphur-resistant conversion unit 10, CO largely turns the raw gas after cooling and dedusting
It is changed to CO2With H2, take off unit 11 altogether using sulphur carbon and remove H2The main sour gas such as S and a part of CO2, the gas of removing send
Enter sulphur carbon separative unit 12, the isolated H of sulphur carbon separative unit 122The main sour gas such as S is sent into sulfur recovery unit 9 and generates sulphur
Sulphur, the isolated CO of sulphur carbon separative unit 122It can empty, also can be used as product and send outside；
Coal gas body after over cure carbon takes off unit 11 altogether is sent into methanation unit 13 as unstripped gas, generates synthetic natural gas
After can be sent into natural gas line and natural gas storage tank 15, can also be sent into compress and liquefy unit 14 generate liquefied natural gas.Natural gas
Natural gas in storage tank 15 can be used as the fuel gas when starting of gas turbine 5 or underload.
Cryogenic air separation unit system 8 is produced industrial pure oxygen and is used for gasification furnace 1, and remaining dirt nitrogen injects fuel after pressurization may be selected
After gas, it is sent into acting power generation in gas turbine 5.
Claims (6)
1. a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas, which is characterized in that including gasification furnace (1), coal
Gas Cooler (2), desulfurization unit (4), gas turbine (5), waste heat boiler (6), steam turbine (7), sulfur recovery unit (9), sulphur carbon
Unit (11), sulphur carbon separative unit (12), methanation unit (13) and natural gas storage tank (15) are taken off altogether, wherein gasification furnace (1)
The entrance of raw gas outlet connection gas cooler (2), the entrance of outlet connection preboiler (6) of gas cooler (2), in advance
The entrance of outlet connection steam turbine (7) of heat boiler (6)；
The entrance and sulphur carbon of outlet connection desulfurization unit (4) of gas cooler (2) take off the entrance of unit (11) altogether, wherein de-
The fuel gas entrance of clean gas outlet connection gas turbine (5) of sulphur unit (4), the sour gas outlet of desulfurization unit (4)
Connect the entrance of sulfur recovery unit (9)；
Sulphur carbon takes off the unstripped gas entrance of gas exit connection methanation unit (13) of unit (11) altogether, methanation unit (13)
The outlet of the entrance of synthetic natural gas outlet connection natural gas storage tank (15), natural gas storage tank (15) connects gas turbine (5)；
Sulphur carbon takes off the entrance of gas vent connection sulphur carbon separative unit (12) of unit (11), the acid of sulphur carbon separative unit (12) altogether
Property gas vent connection sulfur recovery unit (9) entrance.
2. a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas according to claim 1, feature exist
In further including cryogenic air separation unit system (8), the oxygen intake of oxygen outlet connection gasification furnace (1) of cryogenic air separation unit system (8) is deep
The fuel gas entrance of nitrogen outlet connection gas turbine (5) of cold space division system (8).
3. a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas according to claim 1, feature exist
In the outlet of gas cooler (2) is connected with dust removing units (3), wherein the outlet of dust removing units (3) connects desulfurization unit (4)
Entrance and sulphur carbon altogether take off unit (11) entrance.
4. a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas according to claim 1, feature exist
In the entrance that sulphur carbon takes off unit (11) altogether is connected with sulphur-resistant conversion unit (10).
5. a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas according to claim 1, feature exist
In gasification furnace (1) is provided with slag-drip opening.
6. a kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas according to claim 1, feature exist
In the outlet of methanation unit (13) is connected with the entrance and natural gas line for compressing and liquefying unit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779388.XU CN209052635U (en) | 2018-10-30 | 2018-10-30 | A kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779388.XU CN209052635U (en) | 2018-10-30 | 2018-10-30 | A kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209052635U true CN209052635U (en) | 2019-07-02 |
Family
ID=67052077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821779388.XU Active CN209052635U (en) | 2018-10-30 | 2018-10-30 | A kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209052635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251769A (en) * | 2018-10-30 | 2019-01-22 | 中国华能集团清洁能源技术研究院有限公司 | A kind of the dry coal powder gasification IGCC power plant and method of co-production of synthetic natural gas |
| CN113072422A (en) * | 2021-03-29 | 2021-07-06 | 中国华能集团清洁能源技术研究院有限公司 | IGCC-based poly-generation system |
-
2018
- 2018-10-30 CN CN201821779388.XU patent/CN209052635U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251769A (en) * | 2018-10-30 | 2019-01-22 | 中国华能集团清洁能源技术研究院有限公司 | A kind of the dry coal powder gasification IGCC power plant and method of co-production of synthetic natural gas |
| CN113072422A (en) * | 2021-03-29 | 2021-07-06 | 中国华能集团清洁能源技术研究院有限公司 | IGCC-based poly-generation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109251769A (en) | A kind of the dry coal powder gasification IGCC power plant and method of co-production of synthetic natural gas | |
| CN109441574B (en) | Integrated coal gasification combined power generation process with near-zero carbon emission for peak regulation | |
| CN109372636B (en) | Three-cycle integrated coal gasification fuel cell power generation system and method with zero carbon emission | |
| Göttlicher et al. | Comparison of CO2 removal systems for fossil-fuelled power plant processes | |
| US8973567B2 (en) | Adapting of an oxy-combustion plant to energy availability and to the amount of CO2 to be trapped | |
| JP2016531973A (en) | Methanation method and power plant with carbon dioxide methanation of flue gas | |
| KR20100099274A (en) | Power plant with c02 capture and compression | |
| CN107829786B (en) | Near-zero emission coal gasification power generation system with pollutant control function and power generation method | |
| CN101482006A (en) | Combined heat and power generation system used for oil field | |
| CN103952197A (en) | Process for co-producing LNG (Liquefied Natural Gas) by using pyrolysis gas generated in power generation system | |
| CN109181776B (en) | Coal-based poly-generation system and method for integrated fuel cell power generation | |
| CN209052635U (en) | A kind of dry coal powder gasification IGCC power plant of co-production of synthetic natural gas | |
| CN102311806B (en) | For the system of pressurized gas | |
| CN113882955A (en) | Gas turbine reheating combined cycle power generation system and operation method thereof | |
| CN101550846B (en) | A chemical looping combustion power generation process and system using landfill gas | |
| CN101318620A (en) | Chemical industry power multi-generation energy resource system and method for separating C02 | |
| CN101915163A (en) | Method and equipment for carrying out oxygen fuel combustion by using hydrogen fuel and gas turbine | |
| AU2011225925A1 (en) | Electricity generation method using a gas/air separation unit and a combustion unit | |
| JP2018006141A (en) | Power generation system | |
| JP4791841B2 (en) | Power generation system | |
| CN109724070B (en) | Pressurized oxygen-enriched coal burning system and method | |
| CN110787594A (en) | CO in flue gas2Method and system for capturing and utilizing coupled LNG decompression cycle | |
| CN216198494U (en) | Novel gas turbine reheating combined cycle power generation device | |
| CN203096004U (en) | Power generation system based on classification and transformation of hydrocarbon components of coal | |
| CN102635873A (en) | Method for capturing and circulating carbon dioxide in ordinary power plant boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |