Zinc halide hydrocracking process for distillate fuels from coal. Annual technical progress report for 1975, including the quarter ending January 31, 1976

Technical Report · Sun Feb 15 00:00:00 EST 1976

DOI:https://doi.org/10.2172/7364008· OSTI ID:7364008

The further development of the zinc halide process to produce clean gaseous and liquid fuels from coal is described, with emphasis on the production of high-octane gasoline. The major effort has been on reconstruction of continuous, bench-scale zinc chloride hydrocracking and catalyst regeneration units, which were revised to handle coal feed and spent melt from direct coal hydrocracking as well as coal extract. Operation was demonstrated with both subbituminous coal and a coal extract derived therefrom by continuous hydroextraction at 825/sup 0/F and 1750 psig pressure. The effect of cyclone temperature and ash content of the feed on the amount of zinc recovered in the ash solids has been investigated. Supporting laboratory work has defined the hydrocracking rate for subbituminous coal in the temperature range 725 to 775/sup 0/F at 300 psig of hydrogen pressure. Material and energy balances, process flow diagrams and instrumentation drawings for a 100 lb/hr Process Development Unit have been prepared. Mechanical design for the high-pressure vessels has been completed and long-lead-time items ordered. An economic evaluation compared the costs of producing gasoline from coal extract via (1) zinc chloride processing versus (2) ebullated-bed hydrocracking plus desulfurization, distillate hydrocracking and reforming to make the same product. The study shows that zinc chloride processing could save from 7.4 to 15.7 percent for a refinery whose chief product is 45,000 BPD of gasoline. Bench-scale studies to define catalyst losses and to explore ways of minimizing such losses will be continued. (auth)

• Research Organization: Conoco Coal Development Co., Library, Pa. (USA)
• DOE Contract Number: E(49-18)-1743
• OSTI ID: 7364008
• Report Number(s): FE-1743-16
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL EXTRACTS
HYDROCRACKING
COAL LIQUEFACTION
ZINC HALIDE PROCESS
SUBBITUMINOUS COAL
FLOWSHEETS
CATALYSTS
ECONOMICS
HYDROGENATION
REGENERATION
ZINC CHLORIDES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COAL
CRACKING
DECOMPOSITION
DIAGRAMS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
LIQUEFACTION
PYROLYSIS
ZINC COMPOUNDS
ZINC HALIDES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction