Flash Hydrogenation of a Bituminous Coal

Abstract

Flash heating of Illinois coal (to 700 degrees C in 1 second) in flowing hydrogen at 100 atmospheres, limiting the vapor residence time at 700 degrees C to 3 seconds, converts 14 percent of the coal's carbon to methane, 7 percent to ethane, and 10 percent to benzene, toluene, and xylenes. The remainder is coke; the carbon balance shows that heavy tar, if any exists, is less than 3 percent.

Kinetics of lignite pyrolysis in fixed bed and entrained flow reactors. Technical report No. 17

“…Fixed beds of coal are usually held captive in a crucible (23)(24)(25), on an electrical grid (17,19,(26)(27)(28)(29)(30)(31)(32)(33), in the wire basket of a thermobalance (34) or as a ring on the inside of a stainless steel pipe (35,36). hundred °C/s in the thermobalance (12).…”