The report discusses the Meyers process whereby pyritic sulfur is removed from coal by the action of a solution of ferric sulfate. The coal is not converted, and it essentially retains its original heating value. The pyritic sulfur leaves the process as elemental sulfur and iron sulfates. The quantities of solid, liquid, and gaseous effluents are estimated, as well as the thermal efficiency of the process. For the purpose of reduced environmental impact, a number of possible process modifications or alternatives which could facilitate pollution control or increase thermal efficiency are proposed, and new technology needs noted.

Performed by Exxon Research and Engineering Company. Sponsored by Industrial Environmental Research Laboratory, Office of Energy, Minerals and Industry. Prepared for U.S. Environmental Protection Agency, Office of Research and Development. "September 1975." "EPA/650-2-74-009k." EPA Project Officer: William J. Rhodes. Includes bibliographical references (page 39).

The report gives results of a review of the Meyers process being developed by TRW, Inc., from the standpoint of its potential for affecting the environment. The quantities of solid, liquid, and gaseous effluents have been estimated, where possible, as well as the thermal efficiency of the process. For the purpose of reduced environmental impact, a number of possible process modifications or alternatives which could facilitate pollution control or increase thermal efficiency have been proposed, and new technology needs have been pointed out.