Coal Devolatilization in a Low Pressure, Low Residence Time Entrained Flow Reactor

作者：R. L. Coates, C. L. CHEN, B. J. POPE · 发表于：Advances in chemistry series · 年份：1974 · 被引用次数：14 · 研究领域：Thermochemical Biomass Conversion Processes、Iron and Steelmaking Processes

The amount and composition of gaseous volatile matter evolved during extremely rapid pyrolysis of a bituminous coal were studied experimentally. Continuous, rapid devolatilization of 1—4 lbs of coal/hr was achieved at atmospheric pressure by mixing the finely ground coal, entrained in a stream of hydrogen or nitrogen, with hot gas from a hydrogen—oxygen combustor, thereby heating the gas as high as 2500°F within 0.01—0.3 sec. Rapid quenching was done with a water spray. Total volatiles greatly exceeded the ASTM volatility of the coal, and as much as 14% of the coal was converted to methane, ethylene, and acetylene.