Abstract
The volatility of bromine, chlorine, vanadium, managanese, selenium, arsenic, chromium, and cobalt during coal pyrolysis was determined. Volatility was determined for both hydrogenated and nonhydrogenated coal, and for coal spiked and unspiked with inorganic and organic forms of the trace elements. Volatilization of selenium and arsenic was higher when those elements were present as inorganic sulfide salts. The importance of chemical forms of elements to rates of volatilization during pyrolysis is established. (1 diagram, 9 references, 4 tables)
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