The article describes an optimization model for estimating the properties and cost of washed coal from coal beneficiation plants of varying levels of complexity. The design and technical description of the plant performance model are presented, together with cost algorithms for three plant designs with increasing sulfur removal capability. Important concepts included in the model are the treatment of different coal size fractions, the efficiency of coal washing equipment, and the optimization of plant yield to achieve a target coal quality. When employed in a larger simulation framework, the plant model serves as a building block for obtaining more realistic estimates of the role of coal cleaning as a cost-effective method of sulfur emissions reduction from coal combustion. (Copyright (c) 1988 APCA.)

"Larry C. Jones, project officer." Reprint of an article appearing in JAPCA Journal, 38:10, pp.1281-1288, October 1988." Includes bibliographical references. Journal article. Prepared by Carnegie-Mellon University for the Environmental Protection Agency, Office of Research and Development, Air and Energy Engineering Research Laboratory. Microfiche.