Advanced direct liquefaction concepts for PETC generic units. Quarterly technical progress report, July--September 1994
The aims of this research program are to advance to bench-scale testing, concepts that have the potential for making net reductions in direct coal liquefaction process costs. The research involves a teaming arrangement between the University of Kentucky Center for Applied Energy Research (CAER), Consolidation Coal Company (CONSOL), Sandia National Laboratories (SNL), and LDP Associates. In general, the process concepts involve ``pretreatment``, that is, chemical and physical modifications to the feed materials to the liquefaction process, prior to their introduction into the liquefaction reactors. CAER and SNL will evaluate chemical approaches to allow better control of the initial conversion reactions through (1) the use of CO pretreatment to stabilize the coal, reject oxygen (thereby lowering hydrogen consumption), and inhibit the propensity for regressive reactions (CAER); (2) the introduction of promoted dispersed iron-based catalysts (CAER); and (3) the production of active H-donor distillate solvent fractions (SNL), using dewaxed distillate (CONSOL) and fluid coker overhead (CAER--CONSOL) as feedstocks. CONSOL will study oil agglomeration for the rejection of coal ash, ash in the recycled resid, and, potentially, catalyst recovery. The success of the research in developing an integrated process concept will be gauged in part by the results of an economic evaluation (LDP Associates). Emphasis will be given to low-rank coals. Accomplishments for this quarter are described.
- Research Organization:
- Kentucky Univ., Lexington, KY (United States). Center for Applied Energy Research; Sandia National Labs., Albuquerque, NM (United States); CONSOL, Inc., Pittsburgh, PA (United States); LDP Associates, Hamilton Square, NJ (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-91PC91040
- OSTI ID:
- 40770
- Report Number(s):
- DOE/PC/91040--48; ON: DE95010505
- Country of Publication:
- United States
- Language:
- English
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