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Title:
Equilibrium modeling for optimum design of operation parameters of MSW plasma gasification
Author: Wang GQ(王贵全); Li YJ(李要建); Xu YX(徐永香); Sheng HZ(盛宏至)
Issued Date: 2011
Conference Name: International Conference on Thermal Treatment Technologies and Hazardous Waste Combustors 2011
Conference Date: MAY 10-13, 2011
Conference Place: Jacksonville, FL, United states
Abstract: Plasma gasification technology has been demonstrated as one of the state of the art and environmentally friendly technologies for the treatment of municipal solid waste (MSW), due to its large volume reduction ratio, high generation efficiency and extremely low emission of secondary pollutants. This work aims to calculate and optimize process parameters for the demo plant of MSW plasma gasification in Beijing which has been made by the Institute of Mechanics, Chinese Academy of Sciences (IMECH, CAS). Duration time of the MSW in the reaction section is beyond 5 seconds, so equilibrium assumption is efficient to simulate gasification processes. Furthermore, a simplified chemical reaction model is develop that can be used to predict concentration distribution of syngas under different operating parameters including gasification temperature, excess air ratio, feeding rate and moisture content. When doing optimum design, two types of constraint conditions are considered, including: 1) fixing ratio of CO to H2 equal to 0.8, 0.9 and 1.0, respectively, corresponding optimum object is plasma torch and heating value of syngas; 2) fixing plasma torch power to 900 kW, corresponding optimum object is compositions and heating value of Syngas. The calculation results show that product distribution is strongly affected by moisture content and gasification temperature (<1,200 K). Although the equilibrium models do not represent the reactions that occur at relatively high temperatures (&asyum;1,273 K) very well, these models can be useful to show some tendencies on the working parameter variations of a gasifier.
Keyword: Combustion ; Combustors ; Hazardous materials ; Heat treatment ; Heating ; Moisture ; Moisture determination ; Municipal solid waste ; Plasma jets ; Plasma torches ; Plasmas ; Synthesis gas ; Technology ; Waste treatment ; Chinese Academy of Sciences ; Concentration distributions ; Constraint conditions ; Duration time ; Environmentally-friendly technology ; Equilibrium modeling ; Equilibrium models ; Excess air ratios ; Feeding rate ; Gasification process ; Gasification temperatures ; Gasifiers ; Heating value ; High temperature ; Low emission ; MSW ; Operating parameters ; Operation parameters ; Optimum designs ; Plasma gasification ; Process parameters ; Product distributions ; Simulation ; State of the art ; Syn-gas ; Volume reductions ; Working parameters
Indexed Type: EI
Corresponding Author: 王贵全
Source: AIR AND WASTE MANAGEMENT ASSOCIATION - INTERNATIONAL CONFERENCE ON THERMAL TREATMENT TECHNOLOGIES AND HAZARDOUS WASTE COMBUSTORS 2011
Publisher: AIR AND WASTE MANAGEMENT ASSOCIATION, 420 FT. DUQUESNE BLVD., PITTSBURGH, PA 15222, UNITED STATES
Language: 英语
Department: LHD高效洁净燃烧(CPCR)
ISBN: 9781617829536
Content Type: 会议论文
URI: http://dspace.imech.ac.cn/handle/311007/46828
Appears in Collections:等离子体与燃烧中心(2009-2011)_会议论文

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Recommended Citation:
Wang GQ,Li YJ,Xu YX,et al. Equilibrium modeling for optimum design of operation parameters of MSW plasma gasification[C]. 见:International Conference on Thermal Treatment Technologies and Hazardous Waste Combustors 2011. Jacksonville, FL, United states. MAY 10-13, 2011
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