Pyrolysis of municipal solid waste

The pyrolysis of municipal solid waste (MSW) is a potential method of producing useful fuels. However, past attempts to utilize the technology have resulted in facilities that have not performed as expected, producing low yields of inferior products. Background on past pyrolytic concepts and the current status of the technology are discussed. Most MSW is cellulosic in nature, comprising paper, newsprint, packaging materials, wood wastes, and yard clippings. The end products of MSW pyrolysis are: a highly carbonaceous solid char, a highly oxygenated liquid tar, and a mixture of gases with low to medium BTU content. Current DOE/ANL research has been undertaken to gain a better understanding of the basic mechanisms, kinetics, and chemistry involved in the pyrolytic conversion of MSW and its components. The objectives of this program, current research efforts, results to date, and future plans are discussed.