Gasification of residual materials from coal liquefaction. Quarterly report, January--March 1978
A total of eight Type I Laboratory Evaluations and three Type II Preliminary Pilot Plant Evaluations have been completed to date. The materials are listed. Type II Preliminary Pilot Plant Evaluations were completed with vacuum flash drum bottoms from the SRC-II pilot plant in Ft. Lewis, Washington and with vacuum tower bottoms from the Exxon Donor Solvent Process pilot plant in Baytown, Texas. About 3/sup 3///sub 4/ tons of SRC-II Vacuum Flash Drum Bottoms from the liquefaction of Kentucky coal were successfully gasified in a single 7/sup 1///sub 2/ hour run at 24 atmospheres pressure. The material was fed undiluted to the pilot plant gasifier at 510/sup 0/F at a rate of 1048 pounds per hour. A 98% conversion of the carbon in the feed to syngas was achieved yielding 30.4 SCF of dry syngas per pound of residue charged. The dry syngas contained over 93 volume percent carbon monoxide and hydrogen. No pumping or handling problems were encountered. The data obtained are summarized. About 2/sup 1///sub 4/ tons of vacuum tower bottoms from the Exxon Donor Solvent Process from the liquefaction of Illinois No. 6 coal were successfully gasified in a single five hour run at 24 atmospheres pressure. The material was fed undiluted to the pilot plant gasifier at 525/sup 0/F at a rate of 904 pounds per hour. A 99% conversion of the carbon in the feed to syngas was achieved yielding 37.1 SCF of dry syngas per pound of residue charged. The dry syngas contained about 90 (vol) percent carbon monoxide plus hydrogen. The melt point range and viscosity of the residue were so high that the ability of the pilot plant equipment to handle this material was stressed to its limit. The short pilot plant run did confirm the operability of the Texaco Coal Gasification Process with this feedstock, and the data confirm earlier predictions of performance efficiency. The data are summarized.
- Research Organization:
- Texaco, Inc., Montebello, CA (USA). Montebello Research Lab.
- DOE Contract Number:
- EX-76-C-01-2247
- OSTI ID:
- 6874013
- Report Number(s):
- FE-2247-16
- Country of Publication:
- United States
- Language:
- English
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Gasification of residual materials from coal liquefaction. Type II preliminary pilot plant evaluation of SRC-II vacuum flash drum bottoms
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Related Subjects
EXXON LIQUEFACTION PROCESS
RESIDUES
GASIFICATION
SRC-II PROCESS
TEXACO GASIFICATION PROCESS
PILOT PLANTS
COAL GASIFICATION
COAL LIQUEFACTION
FUNCTIONAL MODELS
LIQUEFACTION
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction