Caustic washing for refining of direct coal liquefaction products
- CONSOL, Inc., Library, PA (United States)
- Burns and Roe Services Corp., Pittsburgh, PA (United States)
Extensive research and development sponsored by the U.S. DOE/PETC over the past two decades has resulted in dramatic improvements in the quality of direct coal liquefaction products. High-quality coal-derived distillates are obtainable from catalytic two-stage liquefaction (TSL) processes, such as those developed at the Wilsonville, AL pilot plant and the Hydrocarbon Technologies Inc. (HTI) pilot plant and bench units. The products of the Wilsonville and HTI TSL operations are suitable as high quality feedstocks for producing transportation fuels in a refinery. These products have important quality advantages over crude petroleum: they are distillates boiling below about 700{degrees}F and are thus virtually free of resid and metals, and they have very low sulfur contents and low nitrogen contents. The coal liquids have carbon and hydrogen contents and Watson characterization factors within the range of crude petroleums. However, relative to crude petroleum, the crude coal products have elevated oxygen contents. This report describes the removal of phenols from coal liquids by caustic washing, and the the recovery of the cresylic acid by-product.
- DOE Contract Number:
- AC22-89PC89883; AC22-89PC88400; AC22-94PC93054
- OSTI ID:
- 420610
- Report Number(s):
- CONF-950801-; ISSN 0569-3772; TRN: 97:000005-0046
- Journal Information:
- Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Vol. 40, Issue 3; Conference: 210. national meeting of the American Chemical Society (ACS), Chicago, IL (United States), 20-25 Aug 1995; Other Information: PBD: 1995
- Country of Publication:
- United States
- Language:
- English
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