CN202596893U - Electricity-synthetic natural gas peak shaving power generation system based on catalytic gasification - Google Patents
Electricity-synthetic natural gas peak shaving power generation system based on catalytic gasification Download PDFInfo
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- CN202596893U CN202596893U CN 201220249300 CN201220249300U CN202596893U CN 202596893 U CN202596893 U CN 202596893U CN 201220249300 CN201220249300 CN 201220249300 CN 201220249300 U CN201220249300 U CN 201220249300U CN 202596893 U CN202596893 U CN 202596893U
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- natural gas
- gas
- electricity
- catalytic gasification
- sng
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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
- Y02E20/14—Combined heat and power generation [CHP]
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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
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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Abstract
The utility model relates to an electricity-synthetic natural gas peak shaving power generation system based on catalytic gasification. The electricity-synthetic natural gas peak shaving power generation system comprises a catalytic gasification reactor, a coal gas purifier and a gas separator which are connected in sequence. The gas separator is connected with a domestic fuel pipeline and a combustion gas turbine power generation unit. The electricity-synthetic natural gas peak shaving power generation system further comprises a synthetic natural gas storage tank which is connected with the gas separator, the combustion gas turbine power generation unit and the domestic fuel pipeline. Focusing on comparative energy resources at home, the electricity-synthetic natural gas peak shaving power generation system utilizes the catalytic gasification technique to synthesize natural gas, solves the problem of fuel shortage of natural gas combined cycle (NGCC) power stations, achieves cleaning and efficient utilization of coal, and meets requirements of peak shaving of power plants and synthesis of natural gas. According to the electricity-synthetic natural gas peak shaving power generation system, the natural gas synthesis technique and the efficient power generation technique are combined, the mode of single energy supply of the traditional power plants is changed, co-generation of electricity and the synthetic natural gas can be achieved, and the technical problem of a low calorific value synthesis natural gas combustion gas turbine which is difficult to develop, is monopolized by foreign manufacturers, and is not mastered at home at present can be avoided.
Description
Technical field
The utility model belongs to the SNG technical field of power generation, relates generally to a kind of electricity based on catalytic gasification-SNG peaking generation system of novelty.
Background technique
Chinese in recent years market for natural gas has got into the fast-developing phase, and the consumption figure and the price of rock gas all rise violently rapidly.In past 10 years, Chinese natural gas consumption amount is average annual to increase by 16%, 2010 year to 1,070 hundred million sides, increases by 4.4 times than 2000; Account in the primary energy proportion also by 2000 2.4% bring up to 2010 4.4%, and the same period, gas production can only reach 945 billion cubic meters.China plans during " 12 " rock gas is being brought up to 7% to 8% in the ratio in the primary energy consumption, total amount between 2300～2600 billion cubic meters, natural gas consumption year breach will further enlarge.
The characteristics of China's primary energy structure are " the oil-poor weak breaths of relative rich coal ", high-quality fossil energy resources relative shortages such as petroleum gas.Coal occupies absolute leading position always in China's energy resource structure.2010 in the production and consumption total amount of China's primary energy occupancy be respectively 76.5% and 68%.With the coal is that raw material and the primary energy general layout that in quite long period, is difficult to radical change are a kind of stern challenges to SUSTAINABLE DEVELOPMENT OF CHINA, must optimize the terminal energy sources structure for this reason, realizes the efficient clean utilization of coal resources.
The flourishing load centre of domestic economy area to peak regulation load and environmental protection index require increasingly high; The land resources disparities between supply and demand are outstanding day by day; Electric substation's institute and circuit corridor to obtain difficulty very big, require to build on the spot cleaning peak load stations balanced load to improve power supply architecture.Generally face at present the nervous problem of fuel, international market petroleum gas price fluctuation is violent, and long-term up-trend is obvious.Coal resources are main primary energy of China, and domestic existence is not suitable for the coal resources of long-distance transportation in a large number and demands realizing the high-efficiency cleaning utilization urgently.
As catalyzer, coal and water vapour reacted methane are through to the improvement of catalyzer and the optimization of catalytic reaction process with alkali metal or alkaline-earth oxide for the catalytic gasification technology; Realized three kinds of reactions of catalysis (gasification reaction, water gas shift reaction and methanation reaction) in a reactor, overall reaction is in thermal equilibrium state basically in the gasification oven, needs the outside heat of supplying with seldom; Do not need facilities and equipment such as space division system; Process conditions relax relatively, and operating temperature is lower, do not produce slag; Avoid slag process extra energy loss, had vast potential for future development.
The model utility content
The purpose of the utility model is the advantage energy resources of basing on our country; Utilize catalytic gasification technology system SNG; A kind of electricity-SNG peak regulation system based on catalytic gasification technology system SNG is provided; Solve the problem of existing NGCC power station fuel crunch, realized the coal cleaning, efficiently utilize and satisfied peak regulation of power plant and supplied the SNG requirement.SNG technology and efficient power generation technology are combined; Change the single energy supply form in traditional power station; Realize electricity, SNG coproduction, can avoid that development difficulty is big, foreign vendor's monopolization, the domestic middle lower calorific value synthetic gas gas turbine technology problem of still not grasping at present.
For realizing above-mentioned purpose, the utility model adopts following technological scheme.
A kind of electricity-SNG peaking generation system based on catalytic gasification; Comprise catalytic gasification system SNG system; This catalytic gasification system SNG system comprises catalytic gasification reactor, gas purifier and the gas separator that connects successively; Gas separator links to each other with the domestic fuel pipeline, and its improvement is: described gas separator is connected with Gas Turbine Generating Units.Also include the synthesis of natural gas storage tank, said gas separator also is connected with this synthesis of natural gas storage tank; This synthesis of natural gas storage tank links to each other with Gas Turbine Generating Units and is connected with the domestic fuel pipeline.Be provided with first gas control valve between this gas separator and the gas turbine fuel pipeline; Be provided with second gas control valve between this gas separator and the domestic fuel conduit air inlet, described first gas control valve and second gas control valve are pneumatic control valve.This Gas Turbine Generating Units is connected with exhaust heat boiler, and this exhaust heat boiler is connected with the steam turbine generator set.
The beneficial effect of the utility model is following.
1, scale is collaborative, because electricity-SNG Joint Production factory is larger, can shared Utilities, and electric power and SNG are born the cost of equipment of process such as catalytic gasification jointly, thereby make the decline of specific investment expense.
2, product increment is a raw material with coal, and product is clean electric power and high-quality gas product, has realized the high-efficiency cleaning comprehensive utilization and the product increment of coal resources, and the full factory efficient of 50% electricity-50% SNG co-generation system can reach more than 50%.
3, product diversity is produced electric power and SNG simultaneously, has changed the supplying mode of the single energy carrier in traditional power station, can enhance competitiveness and economic benefit.
4, environmental friendliness far below the conventional electric generators group, has great potential based on the exhaust index of the gas Combined Cycle Unit of SNG aspect carbon dioxide discharge-reduction.
5, the operation availability is high; Has good peaking performance; Electricity and SNG Joint Production; Can be that the accumulation of energy carrier is adjusted end product flexibly with the SNG according to the market demand, winter, the rock gas load boom period can reduce the more SNG of generating supply, and can be used for peaking generation summer with more SNG.
6, SNG is as the fuel of gas turbine, and it forms the requirement of satisfying conventional gas turbine fully, has avoided the gas-turbine combustion chamber renovation technique, and capital equipment can be realized production domesticization easily, can significantly reduce cost and increases economic efficiency.
Description of drawings
Fig. 1 is the electricity-SNG peaking generation system process figure of the utility model based on catalytic gasification.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
The utility model relates to a kind of electricity based on catalytic gasification-SNG peaking generation system; With catalytic gasification system SNG system and the combination of combustion and steam association circulating power generation system; As shown in Figure 1, this catalytic gasification system SNG system includes catalytic gasification reactor 3, gas purifier 4 and the gas separator 5 that connects successively.This catalytic gasification reactor 3 links to each other with recovering device 1 with catalyst separation through pipeline.In service; The mixture of coal dust and make-up catalyst gets into catalytic gasification reactor 3 with the catalyzer that catalyst separation and recovering device 1 reclaim; Under the effect of catalyzer and water vapour, accomplish the catalytic gasification reaction, generate the thick mixed gas that is rich in methane; Reacted catalyzer gets into catalyst separation and recovering device 1, recovery section catalyst recycling.Gas purifier 4 is connected with catalytic gasification reactor 3 through gas pipe line; Remove impurity such as solid particle and sulphide in the thick mixed gas; And deliver to gas separator 5 to clean mixed gas through gas pipe line, accomplish the separation of gases such as SNG, carbon dioxide.And carbon dioxide compression set 2 further devices 5 separated from the gas connect, and isolated carbon dioxide gets into carbon dioxide compression set 2 and carries out reprocessing.And returning catalytic gasification reactor 3 through the Gas Recovery pipeline, isolated carbon monoxide and hydrogen utilizes again.Final isolated SNG partly gets into the domestic fuel pipeline, uses as domestic fuel.
The emphasis of the utility model improves and is, this gas separator 5 is connected with Gas Turbine Generating Units 9 through the coal gas transmission pipeline, acts as a fuel to produce electric power.Also be provided with natural gas storage tank 10 in the system, this gas separator 5 is connected with this natural gas storage tank 10 through gas pipe line, in order to regulating and the possible period of want or need.This synthesis of natural gas storage tank 10 also is connected with Gas Turbine Generating Units 9 through the first tonifying Qi pipeline 11; Be connected with the domestic fuel pipeline through the second tonifying Qi pipeline 12; When device fails such as catalytic gasification reactor, can be by fuel and the domestic fuel of the SNG that stores in the synthesis of natural gas storage tank 10 as Gas Turbine Generating Units 9.
Be provided with the first modulating valve 6-1 between above-mentioned gas separator 5 and the Gas Turbine Generating Units 9; Be provided with the second modulating valve 6-2 between this gas separator 5 and the domestic fuel pipeline; System is through regulating the aperture and the time of modulating valve; Regulate the delivery volume of SNG, satisfy power plant's power generation peak adjusting and air feed requirement.When winter during the rock gas load boom period; Transfer the second modulating valve 6-2 aperture on the big domestic fuel pipeline; Turn the first modulating valve 6-1 aperture on the power generation pipeline down, reduce the SNG of Gas Turbine Generating Units 9 and supply with, supply more SNG as domestic fuel.When be in peak of power consumption summer, adopt opposite regulative mode, more SNG is supplied with Gas Turbine Generating Units 9, be used for peaking generation.
Gas Turbine Generating Units 9 further is connected with exhaust heat boiler 8; Exhaust heat boiler 8 is connected with steam turbine generator set 7 and forms the combustion and steam association circulating power generation system; Gas Turbine Generating Units 9 Middle combustion engine exhausts are delivered to exhaust heat boiler 8 and are reclaimed heat, and the steam of generation is delivered to steam turbine generator set 7 and continued to utilize generation electric power.The water vapour that needs in the catalytic gasification reaction can be provided by exhaust heat boiler 8, also can be from the steam pipe system of on-site.
In sum, the catalytic gasification system SNG system of clean and effective is connected with the combustion and steam association circulating power generation system, it can be that carrier is adjusted end product flexibly with the SNG according to situation such as the market demand and seasons that its combination is used.
Claims (8)
1. the electricity based on catalytic gasification-SNG peaking generation system; Comprise catalytic gasification system SNG system; This catalytic gasification system SNG system comprises catalytic gasification reactor, gas purifier and the gas separator that connects successively; Gas separator links to each other with the domestic fuel pipeline, it is characterized in that: said gas separator is connected with Gas Turbine Generating Units.
2. a kind of electricity based on catalytic gasification as claimed in claim 1-SNG peaking generation system is characterized in that: also include the synthesis of natural gas storage tank, said gas separator also is connected with this synthesis of natural gas storage tank.
3. a kind of electricity based on catalytic gasification as claimed in claim 2-SNG peaking generation system, it is characterized in that: this synthesis of natural gas storage tank links to each other with Gas Turbine Generating Units.
4. like claim 2 or 3 described a kind of electricity-SNG peaking generation systems, it is characterized in that this synthesis of natural gas storage tank is connected with the domestic fuel pipeline based on catalytic gasification.
5. a kind of electricity based on catalytic gasification as claimed in claim 3-SNG peaking generation system is characterized in that this synthesis of natural gas storage tank is connected with the domestic fuel pipeline.
6. a kind of electricity as claimed in claim 1-SNG peaking generation system based on catalytic gasification; It is characterized in that; Be provided with first gas control valve between this gas separator and the gas turbine fuel pipeline, this gas separator and and the domestic fuel conduit air inlet between be provided with second gas control valve.
7. a kind of electricity based on catalytic gasification as claimed in claim 6-SNG peaking generation system is characterized in that said first gas control valve and second gas control valve are pneumatic control valve.
8. like the described a kind of electricity of arbitrary claim in the claim 1 to 7-SNG peaking generation system based on catalytic gasification; It is characterized in that; This Gas Turbine Generating Units is connected with exhaust heat boiler, and this exhaust heat boiler is connected with the steam turbine generator set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249300 CN202596893U (en) | 2012-05-30 | 2012-05-30 | Electricity-synthetic natural gas peak shaving power generation system based on catalytic gasification |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220249300 CN202596893U (en) | 2012-05-30 | 2012-05-30 | Electricity-synthetic natural gas peak shaving power generation system based on catalytic gasification |
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| CN202596893U true CN202596893U (en) | 2012-12-12 |
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| CN 201220249300 Expired - Lifetime CN202596893U (en) | 2012-05-30 | 2012-05-30 | Electricity-synthetic natural gas peak shaving power generation system based on catalytic gasification |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896576A (en) * | 2016-05-23 | 2016-08-24 | 新奥科技发展有限公司 | Distributed energy system and energy supply method thereof |
| CN106988884A (en) * | 2017-03-24 | 2017-07-28 | 新奥科技发展有限公司 | Electricity-generating method and electricity generation system |
| WO2019000622A1 (en) * | 2017-06-29 | 2019-01-03 | 赫普热力发展有限公司 | Fuel preparation reaction system, peak regulation system for power generation plant and power generation plant |
| CN113790101A (en) * | 2021-09-24 | 2021-12-14 | 中国科学院工程热物理研究所 | Hydrogen-power cogeneration system and peak shaving operation method |
-
2012
- 2012-05-30 CN CN 201220249300 patent/CN202596893U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896576A (en) * | 2016-05-23 | 2016-08-24 | 新奥科技发展有限公司 | Distributed energy system and energy supply method thereof |
| CN106988884A (en) * | 2017-03-24 | 2017-07-28 | 新奥科技发展有限公司 | Electricity-generating method and electricity generation system |
| WO2019000622A1 (en) * | 2017-06-29 | 2019-01-03 | 赫普热力发展有限公司 | Fuel preparation reaction system, peak regulation system for power generation plant and power generation plant |
| US10900130B2 (en) | 2017-06-29 | 2021-01-26 | Hepu Energy Environmental Technology Co., Ltd. | Fuel preparation reaction system, peak regulation system for power generation plant and power generation plant |
| CN113790101A (en) * | 2021-09-24 | 2021-12-14 | 中国科学院工程热物理研究所 | Hydrogen-power cogeneration system and peak shaving operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTH CHI Free format text: FORMER NAME: NORTH CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100120 Beijing city Xicheng District Street No. 24 Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100120 Beijing city Xicheng District Street No. 24 Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |