Process and Recycle Oils in Two-Stage Coal Liquefaction.

摘要

Over the last decade, work by Lummus-Crest Inc. (Lummus), Hydrocarbon Research Inc. (HRI), and by the participants in the Wilsonville Advanced Coal Liquefaction facility (Wilsonville) has led to Two-Stage Liquefaction process concepts which achieve high yields, good product qualities, and minimize hydrogen consumption. Demonstrated process improvements have reduced anticipated product costs, and point the way to further cost reductions. Part of this development has been a systematic evaluation of process and recycle oil characteristics, conducted by Consol under DOE funding. Frequent (often daily) samples of key process streams are analyzed to relate recycle and product oil composition to process operating conditions and results. This paper provides a comparison of single- and two-stage recycle and process oil characteristics. 10 refs., 1 tab.