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RESEARCH PAPERS

Mediator-Assisted Electrochemical Desulfurization of Coal

[+] Author and Article Information
S. B. Lalvani, K. Ramaswami

Department of Mechanical Engineering and Energy Processes, Southern Illinois University, Carbondale, IL 62901

J. Energy Resour. Technol 110(4), 269-275 (Dec 01, 1988) (7 pages) doi:10.1115/1.3231392 History: Received January 11, 1985; Revised June 20, 1988; Online October 22, 2009

Abstract

A bituminous coal from Illinois (Colchester No. 2) in acid slurry was electrolyzed anodically at 1.2–1.3 V versus SCE (saturated calomel electrode) and 65–75°C. Hydrogen gas was observed to evolve at the cathode with almost 100 percent Faradaic current efficiencies, while simultaneous desulfurization of coal was noted in the anode compartment. In order to enhance sulfur removal, the cations of Ce (IV) and Fe (III) were added to coal slurries. Up to 80 percent reduction in sulfur content of the coal was observed.

Copyright © 1988 by ASME
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