CN101037952A - Integral combined circulating power generation system of coal bed gas and coal mine ventilation gas - Google Patents

Integral combined circulating power generation system of coal bed gas and coal mine ventilation gas Download PDF

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Publication number
CN101037952A
CN101037952A CN 200610161991 CN200610161991A CN101037952A CN 101037952 A CN101037952 A CN 101037952A CN 200610161991 CN200610161991 CN 200610161991 CN 200610161991 A CN200610161991 A CN 200610161991A CN 101037952 A CN101037952 A CN 101037952A
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coal
gas
seam gas
seam
combined cycle
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邢一崧
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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]
    • 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]
    • Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

Abstract

Object of the invention is to provide a coal seam gas and integral combined cycle generation system formed by organic amalgamation for technologies of coal, coal chemical industry, integral combined cycle generation, exploration of energy resource, coal seam gas pumping and discharging, coal seam gas utilization and coal gasification, ensuring coal mine production safety, increasing cleaning energy supply, reducing ecologic environment pollution, promoting sustained development of coal industry. Ground surface pumping is employed combined with down-hole pumping, self-developing, handy utilization and residual gas output are combined. The system implements energy stepping utilization, reducing contaminant discharge of carbon dioxide greenhouse gas farthest, environment protection and highly effective utilization. Generation power of the system is amount to 300 to 600 MW, net efficiency of the combined cycle generation system is amount to 58 percentage, which may exceed 60 percentage. With further incensement of the gas initial temperature, net efficiency is capable of reaching 60 percent or more.

Description

The integral combined circulating power generation system of coal-seam gas, coal mine to ventilate mash gas
One, technical field:
The invention belongs to coal and energy field, relate generally to coal, Coal Chemical Industry, generating, energy exploration, coal-seam gas extraction, gas utilization, coal gasification, gas separation etc.
Two, technical background:
There is very abundant coal bed gas resource in China, it is estimated that buried depth 2000m reaches 30～35,000,000,000,000 m with shallow coal bed gas resource amount 3, can adopt coefficient 50% conversion, it can adopt stock number is 15～17.5 trillion m 3, be equivalent to 131.9～153.9 hundred million t crude oil, by existing oil extraction speed, can be more than 100 years for China's exploitation.Therefore, China's cbm development prospect is huge.China's coal-mine mostly is underground mining, and the gas disaster is serious.The gas of the annual discharging of mining more than 130 billion cubic meters, coal-seam gas (coal mine gas) generally be meant draw out methane, the general name of damp, wind gas-removing; The wind gas-removing: the gas of emitting in the process of coal mining drains in the ground atmosphere through distinguished and admirable.Contain a large amount of air, methane concentration is lower.The whole nation average ton coal content of gas is 28 cubic metres, and highly gassy mine and the coal and gas outburst mine of ton coal gas emission more than 10 cubic metres accounts for about half of state-owned emphasis colliery and local state-owned colliery.According to the quantity of the Annual output of present coal and goaf, abandoned well, the year total resources of China's coal-mine gas estimate to reach the 600-900 billion cubic meter and more than.Mine gas explosion is an a kind of hot chain reaction
The condition of gas explosion is: the existence of certain density gas, high temperature burning things which may cause a fire disaster and sufficient oxygen.(1) gas density
Gas explosion limits is 5%～16%.
When gas density is lower than 5%, to meet fire and do not explode, gas density lose its explosivity, but the chance fire can burn still in air 16% when above.
Gas explosion limits is not changeless, and it also is subjected to the influence of factors such as sneaking into of temperature, pressure and coal dust, other inflammable gas, inert gas.
(2) flach point
The flach point of gas, the minimum temperature of promptly lighting gas., the flach point of gas is 650 ℃～750 ℃.But because of the concentration that is subjected to gas, the character of burning things which may cause a fire disaster and the factor affecting such as pressure of mixed gas change.When content of gas during at 7%-8%, the easiest igniting; When the increased pressure of mixed gas, ignition temperature promptly reduces; Be difficult to blast at the special low concentration gas below 1%
Pressure is to the influence of explosion limit
Pressure adopts following formula to revise to the influence of upper explosive limit:
L U P = L U + 20.6 ( log p + 1 )
In the formula:
L U p-under pressure p, the explosion ratio upper limit (%);
L U-the explosion ratio upper limit (%) under normal pressure (p=0.1MPa);
P-combustion gas absolute pressure (MPa).
Temperature is to the influence of explosion limit
Adopt following formula to revise to temperature:
L U t = L U [ 1 + 8 × 10 - 4 ( t - 25 ) ]
L L t = L L [ 1 - 8 × 1 0 - 4 ( t - 25 ) ]
In the formula:
L U tUpper explosive limit during-temperature t (%);
L L tLower explosion limit during-temperature t (%);
L U-upper explosive limit (%) when temperature is t=25 ℃;
L L-upper explosive limit (%) when temperature is t=25 ℃;
The t-fuel gas temperature (℃).
Integrated temperature pressure is to the influence of coal-seam gas explosion limit
For upper explosive limit, adopt following aggregative formula to revise:
L U pt = [ L U + 20.6 log p + 1 ] ] [ 1 + 8 × 10 - 4 ( t - 25 ) ]
In the formula:
L U Pt-under pressure p, temperature t, the explosion ratio upper limit (%);
L U-in normal pressure (p=0.1MPa), the explosion ratio upper limit (%) when temperature is t=25 ℃;
P-combustion gas absolute pressure (MPa);
The t-fuel gas temperature (℃).
For lower explosion limit, because pressure is little to the lower explosion limit influence, so only consider the temperature correction.
But elder generation of first portion extraction coal-seam gas before mining can make the gas emission in the Coal Production reduce by 70% to 95%.Because the greenhouse effect of 1t methane are equivalent to 21t CO 2, so greenhouse effect minimizing 94% is compared in the direct burning of methane with direct emptying.Along with Kyoto Protocol is formally effective, various countries more pay attention to the recycling to coal-seam gas, to reduce greenhouse gas emission.
Extract the way of coal-seam gas, not only sent out, also solved safety problem and greenhouse gas emission problem pump drainage (CMM) from mine main, extraction from abandoned well (AMM), from unquarried coal by surface drilling production (VCBM, ventilating gas (VAM) according to the relevent statistics, China reduces stock number 19,000,000,000 m with coal mining every year 3More than, present average coal-seam gas extraction rate only has 23%, and the average coal-seam gas extraction rate of the main countries of mining such as Russia, the U.S., Australia is all more than 50%.
Coal-seam gas is administered the problem that exists:
1; The hysteresis quality of fundamental research; 2; Technology national conditions degree is lower; 3; Coal-seam gas extraction rate is low, and potential safety hazard is big, coal-seam gas extraction technology is to adopt the depleted technology of pressure, causes most mine extraction rates less than 30%.Thereby brought very big production safety hidden danger.4; Utilization ratio is hanged down and is caused the wasting of resources and environmental pollution; And utilizing scale obviously less than normal, a large amount of coal-seam gas rows not only cause the waste of resource, and cause serious environmental problem in atmosphere.5; The upstream and downstream development is inharmonious; Initiatively utilize coal-seam gas to realize that the attention degree of administering is nowhere near.The weakness that the downstream utilizes will become the bottleneck of restriction coal gas industry development.
Integrated gasification combined cycle plants
The integrated gasification combined cycle for power generation technology is with Coal Gasification Technology and the advanced power system that combines of combined cycle efficiently.It is made up of the two large divisions, i.e. coal gasification and purification part and gas-steam combined circulating generation part
Manufacturing process is as follows: coal is through being gasificated as middle low-heat value gas, through purifying, remove pollutants such as sulphide in the coal gas, nitride, dust, become the gaseous fuel of cleaning, because it has adopted the gas-steam combined circulation, has improved the comprehensive utilization ratio of the energy widely, realized the cascade utilization of energy, improved the efficient of whole generating system, the more important thing is that it has solved the intrinsic problem of environment pollution caused of conventional coal fired power plant preferably.And have the maximum potential of raising the efficiency, high efficiency is mainly from combined cycle, and the continuous development of gas turbine technology makes it have the maximum potential of raising the efficiency again.Now, the association circulating power generation system net efficiency of natural gas fuel or oil has reached 58%, is expected the beginning of this century to surpass 60%.Along with the further raising of combustion gas initial temperature, the net efficiency of IGCC can reach 50% or higher.The clean conversion with non-direct coal combustion technology of coal makes it have the excellent environment-protective performance earlier coal to be converted into coal gas, purifies after-combustion, overcome because the environmental pollution problem that the direct burning of coal causes its No xAnd SO 2Discharging far below government pollution emissions standards, desulfurization degree 98%, nitrogen-removing rate can reach 90%.The waste disposal amount is few, and by-product also can be sold utilization, can adapt to the needs of thermoelectricity development in this century better.And water usage is lacked 30-50% than conventional steam turbine power station less, and this makes it more help making the most of the advantage in the area of water scarcity, also is suitable for the mining area construction electric power stations near coal-mines.Easily the maximization single-machine capacity can reach more than the 300-600MW.It is wide fully to fully utilize the suitable coal of coal resources, and energy and Coal Chemical Industry are combined into polygenerations systeme, can produce electricity, heat, fuel gas and chemical product simultaneously.
The coal gasification system:
Utilize Coal Gasification Technology to produce synthetic gas, fluidized-bed gasification furnace during as gasifying agent, can save complicated space division system, but calorific value of gas is low with air, is unfavorable for burning; But the cold gas efficiency height that adopts the high oxygen of purity when being gasifying agent with air has but increased station service power consumption rate,
Gas cleaning system:
The crude-gas that produces from gasification oven contains a large amount of objectionable impurities, can't satisfy the requirement of gas turbine safe and reliable operation and environmental regulation, purified treatment in advance is to remove harmful matters such as sulphide, dust, nitride and alkali metal in the crude-gas and halide.
Exhaust heat boiler and steam turbine system: high efficiency vapor recycle, exhaust heat boiler and steam turbine system unavoidably will be carried out quality, energy interchange with gasification, cleaning system etc., for waste heat, the used heat that absorbs each subtense angle fully, raising to the exhaust heat boiler initial temperature, vapor recycle might adopt more elevated steam conditions fully, designs subcritical even postcritical vapour system.
Pressure swing adsorption is a kind of gas separation that grows up the sixties, and the device maximum processing capability has reached 100,000 m 3/ h (1) product purity height; (2) (0.05～3.00MPa) operate equipment is simple in room temperature and low pressure.(3) but single stage operation.(4) the sorbent life-span long, not high to the virgin gas quality requirement, the device processing ease, operating flexibility is big.(5) automaticity height, operating cost is low, and is significantly energy-saving and cost-reducing.
The coal-seam gas volume increase; N2 and CO 2Can be used for removing the methane in the cleat in coal, reduce the dividing potential drop of methane, to improve the desorption of coal seam reservoirs.Because CO 2Can be preferentially adsorbed on the surface of coal, the place of methane from its absorption cemented out, inject CO2 and can obtain the methane high yield.Be retained in the CO in the coal 2The volume ratio output methane the many 2-3 of volume doubly.Nitrogen injection is more worthwhile economically than injecting CO 2, because nitrogen can recycling use, and CO 2But be retained in the coal.Improve the coal-seam gas recovery rate and improve the coal-seam gas recovery rate,
Coal-seam gas purifies and concentrates:
Coal-seam gas purifies, and the lighter hydrocarbons recovery coal-seam gas purifies, the harmful gas based on methane that is made of coal-seam gas.The gas that comprises producing well, minery, goaf, abandoned well is sneaked into the part air in this gas of invar, takes more than its methane concentration of extraction measure 20-80%.The gas of emitting in the process of coal mining drains in the ground atmosphere through distinguished and admirable.Contain a large amount of air, methane concentration is lower.To draw out methane-→ desulfurization, dewater, take off CO2, make its methane concentration more than 90%, the compression supercharging
Three, summary of the invention:
The object of the present invention is to provide a kind of with technology such as coal, Coal Chemical Industry, whole combined cycle generation, energy exploration, coal-seam gas extraction, gas utilization, coal gasifications.Organically merge and form: coal-seam gas and integral combined circulated polygeneration generation system.With protection life, economize on resources, protect the theory of environment; adhere to the policy of " safety first, put prevention first, the comprehensive regulation "; autonomous innovation; strengthen the coal mine gas extraction and utilize dynamics; accelerate the coal gas industry development, ensure coal mine production safety, increase the clean energy resource supply; minimizing promotes the coal industry sustainable development to the pollution of ecotope.Ground extraction combines with the down-hole extraction, independent development, utilize nearby, residual air is defeated outward combines;
This system has implemented cascaded utilization of energy, has at utmost reduced contaminant discharge of carbon dioxide greenhouse gas, environmental protection, the efficient utilization.System's generated output can reach more than the 300-600MW, and the association circulating power generation system net efficiency has reached 58%, is expected to surpass 60%.Along with the further raising of combustion gas initial temperature, net efficiency can reach 60% or higher.The environment-friendly fuel of chemical product few hundred thousand tonnes of reduces discharging CO 2Millions of tons scale system
Recycling to coal-seam gas; use the systems technology of coal-seam gas and whole combined cycle generation, not only the chemical plant product of production environmental protection have been sent out again simultaneously; coal-seam gas also helps the guard ring border, because can be aggravated Global Greenhouse Effect along with coal mining leaks in the atmosphere.Extract, utilize the way of coal-seam gas, also solved safety problem and greenhouse gas emission problem, first extraction coal-seam gas before mining can make the gas emission in the Coal Production reduce by 70% to 95%.The by-product N that flue gas that produces after combined cycle simultaneously and coal-seam gas are purified 2And CO 2Inject the extraction well of coal-seam gas, N 2Can recycling use, and CO 2But be retained in the coal.Improved the coal-seam gas recovery rate.Implementation step is as follows:
Utilize system of the present invention, see the integral combined circulating power generation system figure of accompanying drawing coal-seam gas, coal mine to ventilate mash gas
At first, coal-seam gas 1. by adopt (CMM), (AMM), (CVBM) mode with the coal-seam gas extraction 2. to pressure swing adsorption system, the gas sweetening of the methane content 20%-80% during with the coal-seam gas extraction, dewater, take off CO 2, 5. the Security part when 3. making its methane concentration satisfy supercharging more than 90% enter high-temperature flue gas that 8. gas turbine combustion generating produce by supercharging and enter the low-heat value gas that 7. 6. exhaust heat boiler produces with gasification oven, utilize lower calorific value efficiently self-preheating circulated low NOx high temperature combustion system together exhaust heat boiler is carried out that complete afterburning produces high temperature, high pressure steam drives subcritical even postcritical steam turbine generating.The N that contains among the flue gas  2Reach about 80%, CO 2Reach about 10% with 2. pressure swing adsorption system in the N that produces 2And CO 2Inject the extraction well of coal-seam gas, N jointly with  2Can recycling use, and CO 2But be retained in the coal.Improved the coal-seam gas recovery rate.Utilize the coal of Coal Production 9. to adopt High Temperature High Pressure fluidisation bed gasification furnace, produce low-heat value gas with coal mine to ventilate mash gas as gasifying agent and 10. pass through high temperature purification, a part is used for the afterburning of exhaust heat boiler, and another part and methane one are used from 4. industry, domestic fuel.
Concrete grammar and control:
1.-coal-seam gas extraction; According to the relative coal-seam gas outburst amount in the geological state in field with "nine squares", coal reserves, buried depth, coal seam, the coal-seam gas of coal (gas) content reaches following numerical value place: long flame coal 1.0～1.5m 3/ t (C.M.), bottle coal 1.5～2.0m 3/ t (C.M.), rich coal and coking coal 2.0～2.5m 3/ t (C.M), lean coal 2.5～3.0m 3/ t (C.M.), meager coal 3.0～4.0m 3/ t (C.M.), anthracite 5.0～7.0m 3/ t (C.M.) (C.M. herein is meant flammable matter in the coal both fixed carbon and volatile constituent) influences the factor of coal seam gas-bearing capacity, determine the extraction mode from mine main pump drainage (CMM), extraction from abandoned well (AMM), from unquarried coal by surface drilling production (VCBM) and output.Reach in the above field with "nine squares" of 5 billion cubic meters according to year extraction amount; The gas utilization amount reaches 4.5 billion cubic meters, etc. basic data, determines the quantity mode of well head.To consider N simultaneously 2And CO 2Increasing amount after the injection.
2. install Processing capacity and be chosen as 5-10 ten thousand m 3/ h, dewaters, takes off CO at the gas sweetening of the methane content 20%-80% during with the coal-seam gas extraction 2, make its methane concentration more than 90%, the security feature when satisfying gas turbine and using during the methane supercharging.Provide quality assurance for production methyl alcohol, dimethyl ether environment-friendly fuel again simultaneously.
5.-and gas turbine: selection generatine set heat efficiency height, the gas turbine that specific investment is low, pollutant emission index is low
7.-and exhaust heat boiler: vapour system adopts three to press hot mode again, utilize lower calorific value self-preheating circulated low NOx high temperature burning efficiently system to carry out complete afterburning simultaneously, for steam turbine provides more elevated steam conditions, be designed to subcritical even postcritical steam turbine system, the thermal efficiency reaches more than 35%.Boiler have height (HP), in (1P), low (LP) 3 kinds of steams, middle pressing element has resuperheat.Low-pressure steam after generating provides necessary steam for gasification oven.
10.-and gasification oven: adopt High Temperature High Pressure fluidisation bed gasification furnace, the O that in special low concentration gas below 1% and pressure swing adsorption system, produces with coal mine to ventilate mash gas 2, the steam after the generating produces low-heat value gas as gasifying agent.The output ability with the required raw material of the configuration chemical product kind of system with methane concentration with purify after low-heat value gas use in proportion, satisfy simultaneously the oxygen content of exhaust heat boiler in gas turbine institute smoke exhaust utilize lower calorific value efficiently self-preheating circulated low NOx high temperature combustion system that exhaust heat boiler is carried out complete afterburning is required.N in -flue gas 2Content reaches about 80%, CO 2Content reach about 10% with 2. pressure swing adsorption system in the N that produces 2And CO 2The common extraction well that injects coal-seam gas behind the mixing , N 2Can recycling use, and CO 2But be retained in the coal.Reach and improve the doubly amount of gathering of coal-seam gas 2-3.

Claims (7)

1 one kinds of coal-seam gas and whole combined cycle generation method, it is characterized in that technological incorporation such as coal, Coal Chemical Industry, whole combined cycle generation, coal-seam gas extraction, gas utilization, coal gasification are formed: system's generated output can reach more than the 300-600MW, the association circulating power generation system net efficiency has reached 58%, is expected to surpass 60%.Along with the justice step of advancing of combustion gas initial temperature improves, net efficiency can reach 60% or higher.The environment-friendly fuel of few hundred thousand tonnes of reduces discharging CO 2Millions of tons scale system.
The by-product N that flue gas that 2 utilizations produce after combined cycle and coal-seam gas are purified 2And CO 2In the extraction well such as coal-seam gas, N2 can recycling use, and CO2 is retained in the coal clock.Improved the coal-seam gas recovery rate.
3 with the gas sweetening that utilizes pressure swing adsorption method with methane content 20%-80% after the coal-seam gas extraction, dewater, take off CO 2, make its methane concentration reach Security when satisfying supercharging more than 90%, a part enters the gas turbine combustion generating by supercharging, another part and methane one are used from environment-friendly fuel.
4 high-temperature flue gas that utilize gas turbine combustion generating to produce enter exhaust heat boiler and the low-heat value gas that gasification oven produces, utilize lower calorific value efficiently self-preheating circulated low NOx high temperature combustion system together exhaust heat boiler is carried out that complete afterburning produces high temperature, high pressure steam drives subcritical even postcritical steam turbine and generates electricity.
The N that contains in 5 flue gases 2Reach about 80%, CO 2Reach the N that produces in 10% left and right sides pressure swing adsorption system 2And CO 2The common extraction well that injects coal-seam gas, N 2Can recycling use, and CO 2But be retained in the coal.Improved the coal-seam gas recovery rate.
6 utilize the coal of Coal Production, adopt High Temperature High Pressure fluidisation bed gasification furnace, the O that produces in special low concentration gas below 1% and pressure swing adsorption system with coal mine to ventilate mash gas 2, generating back steam produces low-heat value gas as gasifying agent, passes through high temperature purification.A part is used for the afterburning of exhaust heat boiler, and another part and methane one are used from industrial civilian environment-friendly fuel product.
7 exhaust heat boilers: vapour system adopts three to press hot mode again, utilize lower calorific value self-preheating circulated low NOx high temperature burning efficiently system to carry out complete afterburning, for steam turbine provides more elevated steam conditions, be designed to subcritical even postcritical steam turbine system, the thermal efficiency reaches more than 35%.
CN 200610161991 2006-12-12 2006-12-12 Integral combined circulating power generation system of coal bed gas and coal mine ventilation gas Pending CN101037952A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102159527A (en) * 2008-07-23 2011-08-17 A·拉蒂夫·马赫哲布 System and method for converting solids into fuel
CN102207029A (en) * 2010-11-14 2011-10-05 龙口矿业集团有限公司 Method for comprehensively utilizing oil shale refining residual gas
CN102662318A (en) * 2012-05-25 2012-09-12 天津市电力公司 Coal supply method of optimizing fire power plant by real-time coal firing heat value coefficient
CN104373164A (en) * 2014-11-05 2015-02-25 中国华能集团清洁能源技术研究院有限公司 Integrated gasification combined cycle (IGCC) power station system with complementary combustion type waste heat boiler and operating method
CN106246264A (en) * 2016-08-26 2016-12-21 中煤科工集团重庆研究院有限公司 Gas high-efficiency comprehensive utilization system
CN106958483A (en) * 2017-03-29 2017-07-18 赫普热力发展有限公司 A kind of mine colliery distribution is provided multiple forms of energy to complement each other energy micro-grid system
CN108661803A (en) * 2018-03-29 2018-10-16 贵州盘江煤层气开发利用有限责任公司 A kind of waste heat recycle method improving generating efficiency

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102159527A (en) * 2008-07-23 2011-08-17 A·拉蒂夫·马赫哲布 System and method for converting solids into fuel
US8845771B2 (en) 2008-07-23 2014-09-30 Latif Mahjoob System and method for converting solids into fuel
CN102159527B (en) * 2008-07-23 2015-06-10 A·拉蒂夫·马赫哲布 System and method for converting solids into fuel
CN102207029A (en) * 2010-11-14 2011-10-05 龙口矿业集团有限公司 Method for comprehensively utilizing oil shale refining residual gas
CN102662318A (en) * 2012-05-25 2012-09-12 天津市电力公司 Coal supply method of optimizing fire power plant by real-time coal firing heat value coefficient
CN102662318B (en) * 2012-05-25 2013-09-18 天津市电力公司 Coal supply method of optimizing fire power plant by real-time coal firing heat value coefficient
CN104373164A (en) * 2014-11-05 2015-02-25 中国华能集团清洁能源技术研究院有限公司 Integrated gasification combined cycle (IGCC) power station system with complementary combustion type waste heat boiler and operating method
CN106246264A (en) * 2016-08-26 2016-12-21 中煤科工集团重庆研究院有限公司 Gas high-efficiency comprehensive utilization system
CN106958483A (en) * 2017-03-29 2017-07-18 赫普热力发展有限公司 A kind of mine colliery distribution is provided multiple forms of energy to complement each other energy micro-grid system
CN108661803A (en) * 2018-03-29 2018-10-16 贵州盘江煤层气开发利用有限责任公司 A kind of waste heat recycle method improving generating efficiency

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