CN102536460A - Method and system for recycling electric energy of waste heat of plasma - Google Patents

Method and system for recycling electric energy of waste heat of plasma Download PDF

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Publication number
CN102536460A
CN102536460A CN2010105973983A CN201010597398A CN102536460A CN 102536460 A CN102536460 A CN 102536460A CN 2010105973983 A CN2010105973983 A CN 2010105973983A CN 201010597398 A CN201010597398 A CN 201010597398A CN 102536460 A CN102536460 A CN 102536460A
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China
Prior art keywords
plasma
gas
power generation
carrier gas
electric energy
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Pending
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CN2010105973983A
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Chinese (zh)
Inventor
王浩静
王红飞
刘福杰
范立东
程璐
李福平
刘欢
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XI'AN HANGKE PLASMA SCIENCE AND TECHNOLOGY Co Ltd
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XI'AN HANGKE PLASMA SCIENCE AND TECHNOLOGY Co Ltd
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Priority to CN2010105973983A priority Critical patent/CN102536460A/en
Publication of CN102536460A publication Critical patent/CN102536460A/en
Pending legal-status Critical Current

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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
    • Y02E20/12—Heat utilisation in combustion or incineration of waste
    • 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
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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

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  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to a method and a system for recycling the electric energy of the waste heat of plasma. The method comprises the following steps of: (1) incinerating solid wastes by adopting a plasma technology, recovering generated slag and metal and carrying out burning for power generation on mixed combustible gas generated by incineration; (2) then, mixing CO2 generated by the burning power generation with CH4 and carrier gas and cracking the CO2 and the CH4 after being mixed with the carrier gas into substances with small molecules by adopting a plasma co-cracking technology through utilizing electric energy generated by burning in the step (1); (3) separating the substances with the small molecules which are generated after cracking from the carrier gas; and (4) synthesizing each substance with the small molecules after being separated or directly using as fuel for carrying out power generation and conveying the carrier gas after being separated into the step (2) for recycling. According to the method and the system for recycling the electric energy of the waste heat of the plasma, the technical problems of wastage of energy resources which is caused after the treatment of a traditional plasma technology, and increase of the discharge quantity of greenhouse gas are solved, and the recycle and the clean innocent treatment of wastes are truly realized.

Description

Plasma used heat power cycles is utilized method and system
Technical field
The present invention relates to a kind of plasma waste incineration and waste gas and reclaim cracking, recycle, innoxious, clean processing method and system, be the new technology of an environmental protection and comprehensive utilization of energy.
Background technique
The way of handling at present solid-state rubbish in the world is main with burning and two kinds of forms of landfill usually.Burn away the refuse produced contain heavy metal and soluble salt gas fume is very harmful to air and edatope, especially can produce dioxin.Metallic elements such as the lead that conventional burning means cause, arsenic, cadmium, chromium, copper, zinc, nickel, mercury have badly influenced human food security and healthy.China is domestic directly to carry out landfill disposal with rubbish mostly, and this can cause direct pollution to soil and water body undoubtedly, and for the medical waste that contains a large amount of viruses and bacterium, directly burying method is inadvisable equally.
Along with the rise of plasma technique, begin to grope the using plasma technology both at home and abroad and carry out incineration treatment of garbage in recent years.Because the core temperature of plasma torch can reach 3000～20000 ℃, under this temperature conditions, various solid-state rubbish, toxic substance all can decompose rapidly or cracking in signa, and inorganic matter fusion under high temperature action can not produce dioxin contamination.But owing to contain a large amount of H that produce after the material cracking in the gas that plasma technique produces after handling 2, CO, CO 2And various hydrocarbon type of mixed gass, people are converted into CO with it through secondary-burning chamber usually 2Or directly entering atmosphere after the process water bath processing, this not only causes the waste of the energy, also will cause greenhouse gas emissions to increase.
Summary of the invention
In order to solve waste that causes the energy after existing plasma technique is handled and the technical problem that greenhouse gas emissions increase, the present invention provides a kind of plasma used heat power cycles to utilize method.
Technical solution of the present invention is:
A kind of plasma used heat power cycles is utilized method, and its special way is: may further comprise the steps:
1] the using plasma technology is burned solid waste, reclaims the slag and the metal that are produced, carries out combustion power generation with burning the mixed combustible gas body that produces;
2] with CO that combustion power generation produced 2Again with CH 4Mix using plasma copyrolysis techniques make use step 1 with carrier gas] in the electric energy that produced of burning, will with the mixed CO of carrier gas 2And CH 4Be cracked into small-molecule substance;
3] small-molecule substance that produces after the cracking and carrier gas are separated;
4] the various small-molecule substances after will separating synthesize or directly act as a fuel and generate electricity, and step 2 is sent in the carrier gas after separating] in recycle.
Above-mentionedly will burn the step that method that the mixed combustible gas body that produces carries out combustion power generation comprises that also the mixed combustible gas body that will burn generation before the combustion power generation purifies.
A kind of plasma used heat power cycles is utilized system; Its special way is: comprise the plasma heat treatment system that is used for handling solid waste, be used for the mixed combustible gas body that the plasma heat treatment system is produced carry out combustion power generation tail pipe burner and steam turbine, be used for the CO2 that the steam turbine combustion power generation produces carry out cracking plasma copyrolysis system, be used to reclaim the pressure swing adsorption system of cracked gas small-molecule substance, the electric energy output end of said steam turbine connects the power supply of plasma copyrolysis system.
Also comprise the carrier gas cyclic utilization system.
Also comprise the synthesis of chemicals system that is used for reclaiming the cracked gas small-molecule substance.
The gas output tube road of above-mentioned plasma copyrolysis system connects the gas inlet pipe road of steam turbine.
Above-mentioned pressure swing adsorption system is the gas fractionation unit of being processed by molecular sieve.
The advantage that the present invention had:
1, the present invention relates to innoxious, the cleaning system that a kind of plasma waste incineration and waste gas reclaim the cracking recycle; Through the using plasma technology is handled after to solid waste incineration again; The entire process process does not have hazardous emission basically, has really realized the cyclic utilization of waste and cleaning innocuity treatment.
2, after the present invention utilizes the plasma heat treatment system with the solid waste waste incineration, reclaim metal remained and slag; CO and H that plasma discharge and high-temp combustion produce 2As inflammable gas is that the available energy supplies power generation system to use; The CO that power generation system is discharged 2Gas is transported to plasma copyrolysis system, in the presence of carrier gas, is cracked into CO+H 2Mixed combustible gas body after the cracking not only can be through the synthetic various types of oil products of chemical means and other polymeric compound, and can directly send back to power generation system and be used for the pushing turbine generating once more.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention.
Embodiment
Plasma used heat power cycles is utilized method, it is characterized in that: may further comprise the steps:
1] the using plasma technology produces CO to solid waste incineration 2And electric energy;
1.1] solid waste entering solid waste feedthrough system;
1.2] entering plasma heat treatment system;
1.3] carbon monoxide that does not purify and the hydrogen gas mixture that will produce get into the mixed gas purification system purification, and the combustible gas that produces is generated electricity through steam turbine, will clean to discard and discharge;
1.4] generation electric energy and CO 2
2] using plasma is to step 1] material that produces handles again:
2.1] with CO 2, CH 4Send into plasma copyrolysis system with carrier gas and under the effect of electric energy, carry out cracking, plasma copyrolysis system produces small-molecule substance and carrier gas for producing the plasmatorch of thermal plasma after the cracking,
2.2] material that produces after the cracking is sent into pressure swing adsorption system separate;
3] small-molecule substance after will separating is sent into the synthesis of chemicals system and is synthesized, and step 2.1 is sent in carrier gas] in recycle.The Main Ingredients and Appearance of small-molecule substance is CO and H 2The gas fractionation unit of pressure swing adsorption system for processing with molecular sieve.
The present invention is through the plasma waste incineration; After metallic material after handling and the recycling of vitreous humor slag; To handle hydrocarbon type of carrier gas process of the mixed gas adding plasma pyrolysis operation that the back produces again; Again be reduced to inflammable gas, form the renewable sources of energy and supply power generation system to use, also can be through chemical processes such as catalysis, conversions with its synthetic various chemical material; It is required to satisfy people's productive life, thereby really realizes useless, hot, electric, the utilization of ability circulation comprehensive pollution-free, zero-emission.
Its main technical flows (as shown in Figure 1):
Solid waste rubbish is delivered to plasma heat treatment system high temperature incineration through feedthrough system, and molten metal alloy and slag separation are reclaimed, and the burning mixture that is produced is sent into firing chamber steam supply turbine generating and used after water-bath purifies.The CO that steam turbine is discharged 2Greenhouse gases are delivered to plasma copyrolysis system through pipe special, under the fellowship of carbon dioxide and hydrocarbon gas, are cracked into CO+H through plasma high-temperature 2The mixed combustible gas body; This gas is separated into combustion gas capable of using by composition after transformation absorption; Both can be with its fuel as power generation system; With the electric drive plasma pyrolysis device that power generation system produces, can really realize refuse circulation and clean utilization as synthetic other macromolecular materials of industrial chemicals and oil product again.The electric power that adopts this technology to produce supplies the cracking system consumption except that 30%, and all the other 70% also can supply electrical network.
The major technique characteristics:
1, utilize the plasma heat treatment system with the solid waste waste incineration after, reclaim metal remained and slag;
2, the CO and the H of the generation of plasma discharge and high-temp combustion 2Supply power generation system to use as inflammable gas as the available energy;
3, the CO of power generation system discharge 2Gas is transported to plasma copyrolysis system, in the presence of carrier gas, is cracked into CO+H 2
4, the mixed combustible gas body after the cracking not only can be through the synthetic various types of oil products of chemical means and other polymeric compound, and can directly send back to power generation system and be used for the pushing turbine generating once more.
5, the entire process process does not have hazardous emission basically, has really realized the cyclic utilization of waste and cleaning innocuity treatment.

Claims (7)

1. a plasma used heat power cycles is utilized method, it is characterized in that: may further comprise the steps:
1] the using plasma technology is burned solid waste, reclaims the slag and the metal that are produced, carries out combustion power generation with burning the mixed combustible gas body that produces;
2] with CO that combustion power generation produced 2Again with CH 4Mix using plasma copyrolysis techniques make use step 1 with carrier gas] in the electric energy that produced of burning, will with the mixed CO of carrier gas 2And CH 4Be cracked into small-molecule substance;
3] small-molecule substance that produces after the cracking and carrier gas are separated;
4] the various small-molecule substances after will separating synthesize or directly act as a fuel and generate electricity, and step 2 is sent in the carrier gas after separating] in recycle.
2. plasma used heat power cycles according to claim 1 is utilized method, it is characterized in that: saidly will burn the step that method that the mixed combustible gas body that produces carries out combustion power generation comprises that also the mixed combustible gas body that will burn generation before the combustion power generation purifies.
3. a plasma used heat power cycles is utilized system, it is characterized in that: comprise the plasma heat treatment system that is used to handle solid waste, be used for the mixed combustible gas body that the plasma heat treatment system is produced carry out combustion power generation tail pipe burner and steam turbine, be used for CO that the steam turbine combustion power generation is produced 2Carry out cracking plasma copyrolysis system, be used for reclaiming the pressure swing adsorption system of cracked gas small-molecule substance, the electric energy output end of said steam turbine connects the power supply of plasma copyrolysis system.
4. plasma used heat power cycles according to claim 3 is utilized system, it is characterized in that: also comprise the carrier gas cyclic utilization system.
5. utilize system according to claim 3 or 4 described plasma used heat power cycles, it is characterized in that: also comprise the synthesis of chemicals system that is used for reclaiming the cracked gas small-molecule substance.
6. utilize system according to claim 3 or 4 described plasma used heat power cycles, it is characterized in that: the gas output tube road of said plasma copyrolysis system connects the gas inlet pipe road of steam turbine.
7. utilize system according to claim 3 or 4 described plasma used heat power cycles, it is characterized in that: said pressure swing adsorption system is the gas fractionation unit of being processed by molecular sieve.
CN2010105973983A 2010-12-20 2010-12-20 Method and system for recycling electric energy of waste heat of plasma Pending CN102536460A (en)

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CN2010105973983A CN102536460A (en) 2010-12-20 2010-12-20 Method and system for recycling electric energy of waste heat of plasma

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296149A (en) * 2014-08-22 2015-01-21 深圳朴方环保发展有限公司 Garbage disposal system
CN105750309A (en) * 2016-05-10 2016-07-13 中国环境科学研究院 Comprehensive garbage treatment system and method for comprehensively treating garbage with comprehensive garbage treatment system
TWI679376B (en) * 2017-02-14 2019-12-11 鼎堅綠能科技股份有限公司 Heat recovery device and plasma torch heat recovery equipment
CN114395420A (en) * 2022-01-21 2022-04-26 东华工程科技股份有限公司 Plasma gasification system and method for incineration and pyrolysis of hazardous waste
WO2023103347A1 (en) * 2021-12-09 2023-06-15 中国华能集团清洁能源技术研究院有限公司 Apparatus and method for utilizing waste heat of garbage incinerator slag by means of coupled plasma cracking

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009031A1 (en) * 1999-07-29 2001-02-08 David Systems Technology, S.L. Plasma transformer for the transformation of fossil fuels into hydrogen-rich gas
CN1415530A (en) * 2002-12-16 2003-05-07 中国科学院山西煤炭化学研究所 Method for preparing synthesis gas by vaporizing both of CO2-CH4
CN1552680A (en) * 2003-12-18 2004-12-08 四川大学 Method for preparing acetylene by hot plasma cracking methane containing gas
CN1821054A (en) * 2006-02-25 2006-08-23 周开根 Method and device for plasma producing hydrogen by using garbage biomass and water as raw material
CN101525118A (en) * 2008-03-07 2009-09-09 周开根 Gasification process for producing synthesis gas from garbage and biomass raw materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009031A1 (en) * 1999-07-29 2001-02-08 David Systems Technology, S.L. Plasma transformer for the transformation of fossil fuels into hydrogen-rich gas
CN1415530A (en) * 2002-12-16 2003-05-07 中国科学院山西煤炭化学研究所 Method for preparing synthesis gas by vaporizing both of CO2-CH4
CN1552680A (en) * 2003-12-18 2004-12-08 四川大学 Method for preparing acetylene by hot plasma cracking methane containing gas
CN1821054A (en) * 2006-02-25 2006-08-23 周开根 Method and device for plasma producing hydrogen by using garbage biomass and water as raw material
CN101525118A (en) * 2008-03-07 2009-09-09 周开根 Gasification process for producing synthesis gas from garbage and biomass raw materials

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296149A (en) * 2014-08-22 2015-01-21 深圳朴方环保发展有限公司 Garbage disposal system
CN105750309A (en) * 2016-05-10 2016-07-13 中国环境科学研究院 Comprehensive garbage treatment system and method for comprehensively treating garbage with comprehensive garbage treatment system
TWI679376B (en) * 2017-02-14 2019-12-11 鼎堅綠能科技股份有限公司 Heat recovery device and plasma torch heat recovery equipment
WO2023103347A1 (en) * 2021-12-09 2023-06-15 中国华能集团清洁能源技术研究院有限公司 Apparatus and method for utilizing waste heat of garbage incinerator slag by means of coupled plasma cracking
CN114395420A (en) * 2022-01-21 2022-04-26 东华工程科技股份有限公司 Plasma gasification system and method for incineration and pyrolysis of hazardous waste
CN114395420B (en) * 2022-01-21 2024-05-14 东华工程科技股份有限公司 Plasma gasification system and method for incineration pyrolysis of hazardous waste

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Application publication date: 20120704