IMECH-IR  > 力学所知识产出(1956-2008)
AC plasma arc system for pyrolysis of medical waste and POPs
Sheng HZ(盛宏至); Wang R(王蕊); Xu YX(徐永香); Li YJ(李要建); Tian JG(田君国)
Source PublicationAir and Waste Management Association - 27th Annual International Conference on Thermal Treatment Technologies 2008
2008
Conference Name27th Annual International Conference on Thermal Treatment Technologies 2008
Conference DateMay 12, 2008 - May 16, 2008
Conference PlaceMontreal, QC, Canada
AbstractPlasma technology is an environmentally friendly method to destruct hazardous wastes. Using the arc discharge with the plasma gas like hydrogen, the temperature can attain 7000°C in arc zone and above 1200-1500°C in reaction zone. Due to such high temperature, the chemical bonds of organic compounds are broken up, and then the process achieves high destruction and removal efficiency (DRE) and avoids the emission of NOx, CO and dioxins. As the additives such as CaO and SiO2 are mixed with the wastes, solid by-product of the process is the vitrified slag with some heavy metals in it. In this paper, a pilot-scale AC plasma arc system was designed and installed in the Wastes Treatment Technology lab, Institute of Mechanics, Chinese Academy of Sciences (CAS-IMECH) to investigate the capacity of plasma arc technology for medical waste treatment. The plasma system, with the capacity of 5 ton/day, includes a feed-in subsystem, a 250 kW plasma arc furnace, a monitoring/controlling subsystem, an plasma gas supply subsystem, a water-cooling subsystem, and an off-gas treatment subsystem that consists of a secondary combustion chamber, a fast off-gas cooling heat exchanger, an active carbon-fiber adsorbing box, a wet acid-gas scrubber and an off-gas reheater. The performance characteristics of this plasma arc system has been tested and evaluated. Moreover, cooperating with Mega-Green Environmental Science and Technology Co., Ltd, CAS-IMECH is developing a demo plant for the treatment of Persistent Organic Pollutants (POPs), medical waste and other toxic organic wastes in Xianyang, Shaanxi Province, China.
KeywordAc Plasma Arc Technology Active Carbons Arc Discharges Chinese Academy Of Sciences Cooling Subsystems Destruction And Removal Efficiencies Environmental Sciences Environmentally Friendly Gas Cooling Gas Reheaters Gas Scrubbers Gas Treatments Hazardous Wastes High Temperatures Medical Wastes Off-gas Treatment Organic Wastes Performance Characteristics Persistent Organic Pollutants Plasma Arc Furnaces Plasma Arcs Plasma Gasses Plasma Systems Plasma Technologies Pyrolysis Process Reaction Zones Secondary Combustions Sub Systems Treatment Technologies
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60320
Collection力学所知识产出(1956-2008)
Recommended Citation
GB/T 7714
Sheng HZ,Wang R,Xu YX,et al. AC plasma arc system for pyrolysis of medical waste and POPs[C],2008.
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