Liquefaction Behavior of an Australian Brown Coal in Comparison to That of Two US Lignites

摘要

Data presented in this report suggest the following major conclusions: (1) The Australian brown coal (predried to 10 pct moisture), at the conditions tested, resulted in lower yields than any of the US lignites or subbituminous coals tested thus far. (2) Distillate yield from the Australian coal was increased by CPU bottoms recycle operation with syngas although not increased to the same level observed for North Dakota or Texas lignites processed at similar conditions, but with hydrogen. (3) The Australian coal responded to changes in operating conditions in a manner similar to North Dakota lignites; however, the total conversion and yields were always less. (4) The Australian coal tested appears to have been deactivated during the drying process, which is known to happen to US lignites dried in the presence of air or inert gas. (ERA citation 07:059112)