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IMECH-IR  > 等离子体与燃烧中心(2009-2011)  > 会议论文
Title:
Theoretical and engineering research on the municipal solid waste plasma gasification
Author: Sheng HZ(盛宏至); Deng J(邓晶); Li YJ(李要建); Xu YX(徐永香)
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 is an advanced and environmentally friendly technology for the disposal of municipal solid waste (MSW) with energy recovery. Based on the requirement for the treatment of MSW in Beijing, the conceptual design for a 50 t/d demo plasma gasification system for preprocessed MSW has been done. The raw MSW is preprocessed by a pretreatment system, where the raw MSW is heated up to 180°C under 0.7 MPa by steam, and then released rapidly into the vessel under atmospheric pressure. After pre-processing, kitchen garbage and dust can be easily screened out from raw MSW The moisture of sorted MSW can be reduced to 30% and a lower heating value (LHV) of the pre-processed MSW can reach 13 000 kJ/kg. The pre-processed MSW is gasified in the plasma reactor, where the plasma torches of 600 kW in total are used, in order to produce the syngas to feed a gas engine generator of 2.5MW. 30% of stoichiometrical air was fed into the reactor to get better syngas. The reaction temperature is kept at 1000°C for 5 seconds in the reactor chamber, where the dioxins can be fully destroyed. The syngas is cleaned before it is feed in to the engine. A special syngas-water heat exchanger is designed to recover energy of the hot syngas and to avoid corrosion of HCl gas under high temperature and of hydrochloric acid below the dew point. Meanwhile, dioxins formation is prevented, since the cooling process duration of syngas is shorter than 0.5 second under 200°C to 500°C.
Keyword: Atmospheric pressure ; Calorific value ; Combustion ; Combustors ; Conceptual design ; Energy conversion ; Gas engines ; Gasification ; Hazardous materials ; Heat treatment ; Hydrochloric acid ; Organic pollutants ; Plasma applications ; Plasmas ; Radioactive waste disposal ; Synthesis gas ; Waste disposal ; Waste treatment ; Cooling process ; Dew points ; Energy recovery ; Engine generator ; Environmentally-friendly technology ; HCl gas ; High temperature ; Hot syngas ; Kitchen garbage ; Lower heating value ; MSW ; Plasma gasification ; Plasma reactors ; Pre-processing ; Pretreatment systems ; Reaction temperature ; Reactor ; Reactor chamber ; Syn-gas
Indexed Type: EI
Corresponding Author: 盛宏至
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/311007/46829
Appears in Collections:等离子体与燃烧中心(2009-2011)_会议论文

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Recommended Citation:
Sheng HZ,Deng J,Li YJ,et al. Theoretical and engineering research on the municipal solid waste 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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