PROCESS TO PRODUCE SUBSTANTIALLY DEVOLATILIZED COAL AND GASES FROM COAL

摘要

The coal is heated in a non- oxidizing atmosphere in first heating zone to partially devolatilize the coal and produce a partially devolatilized char, which is then heated by a mixture of steam and oxygen in a second heating zone to produce a high calorific gas containing volatile vapors and a substantially devolatilized char containing less than 6 weight percent volatile combustible matter. A rigid shaped article having a high crushing strength may be made by mixing the substantially devolatilized char with a binding agent therefor, shaping the mixture, and curing and coking the shaped mixture.