Two-stage liquefaction. Integrated quarterly technical progress report parametic study, October 1, 1979-March 31, 1980 [electronic resource].
- Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1981.
- Physical Description:
- Pages: 38 : digital, PDF file
- Additional Creators:
- United States. Department of Energy. Office of Scientific and Technical Information
- This program combines a research study on Catalytic Expanded Bed Hydroprocessing of coal extracts and the operation of an integrated two-stage liquefaction process development unit. Parts of two subtasks were completed during this reporting period. Both reactors, the short contact time (SCT) first stage and the LC-Finer second stage, of the integrated PDU were started up. The results of an eleven-day thermal baseline run show conclusively that coal extracts are highly refractory and that an active hydrogenation catalyst is needed to realize high conversion of extracts to distillate products. Three runs of the parametric study, ranging from 22 to 30 days in onstream time, were completed. The first two of these runs suffered unusually severe catalyst activity decline. The activity decline during the third run agreed more closely with runs made under the earlier DOE Contract. The short contact time (SCT) and LC-Finer reactors of the integrated PDU were started up. Conversions, as measured by a balance of insoluble organic matter, ranged from 90 to 94 percent at coal space rates of 143 to 244 pounds of coal per hour per cubic foot of reactor. The LC-Finer prehydrogenated sufficient Koppers oil to provide solvent for the rest of the Task 1 program. The SCT 500/sup 0/F/sup +/ product will be feed for the LC-Finer, without deashing, until necessary modifications to the deasher are completed.
- Published through SciTech Connect.
Schindler, H D; Potts, J D.
Lummus Co., Bloomfield, NJ (USA)
Cities Service Research and Development Co., Tulsa, OK (USA). Cities Service Technical Center
- Funding Information:
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