Properties and optimizing of a plasma gasification & melting process of municipal solid waste
2010 (English)In: International Conference of Thermal Treatment Technology & Hazardous Waste Combustors, 2010, 296-316 p.Conference paper (Refereed)
A new solid waste treatment method called Plasma Gasification & Melting (PGM) has been developed by Environmental Energy Resources Ltd. (EER). In this technology, high temperature plasma air and steam arc used to convert the waste into high-quality combustible syngas and vitreous benign slag. Due to the special features of the technology it is applicable for various stream of the solid waste field such as MSW, Medical Waste (MW) and Low Level Radioactive Waste (LLRW), where the technology was derived from. The aim of this study is to discuss the characteristics of this technology, and find out the optimal operation condition for a PGM plant. A simulation model of the PGM process was built up and validated by the test results of a PGM demonstration plant. The result shows that the syngas LCV of PGM is much higher than that of traditional gasification. For air gasification, there exists a lower limit of air/MSW mass ratio for 100% conversion of MSW. When the air/MSW mass ratio exceeds the limitation, the syngas LCV will descend by dilution of CO2 and N2. The tar yield will decrease, because of higher pyrolysis temperature. For air/steam gasification, high temperature steam as gasification agent can reduce the limitation of air/MSW mass ratio, so further enhance the syngas quality. The influence of plasma power will be more prominent for air/steam gasification than air gasification. Based on above discussion, an optimizing conception design aiming at producing syngas with high LCV and energy efficiency of a PGM process is suggested.
Place, publisher, year, edition, pages
2010. 296-316 p.
Combustion, Combustors, Computer simulation, Energy efficiency, Gas generators, Gasification, Hazardous materials, Heat treatment, Industrial waste treatment, Optimization, Plasmas, Pyrolysis, Radioactive wastes, Slags, Solid wastes, Synthesis gas, Technology
IdentifiersURN: urn:nbn:se:kth:diva-47685ScopusID: 2-s2.0-77956313135ISBN: 978-161738663-3OAI: oai:DiVA.org:kth-47685DiVA: diva2:456170
International Conference on Thermal Treatment Technologies and Hazardous Waste Combustors 2010; San Francisco, CA; United States; 17 May 2010 through 20 May 2010
QC 201111142011-11-142011-11-112014-08-26Bibliographically approved