Two-stage, close coupled catalytic liquefaction of coal. [Catalyst used: Presulfided Shell S-317]
The first calendar quarter of 1991 was a productive period with two bench-scale studies, microautoclave support studies, mini-Process Development Unit (PDU) preparations, and process modelling. Several catalyst presulfiding agents and CO{sub 2} effects upon liquefaction were evaluated in microautoclave scale tests. Dimethyl disulfide will be used for the PDU scale-up based on the results of these tests and prior data. Carbon dioxide appears to enhance coal conversion; however, gas and water yields are increased indicating possible water gas shift-hydrocarbon synthesis reactions. In the bench-scale studies, the rejuvenation of spent catalyst with acid and carbon burn-off produced catalytic activity akin to fresh and catalyst in a 12 day evaluation. A 14 day study of the addition of high concentrations of CO{sub 2} to a sub-bituminous coal liquefaction system demonstrated the occurrence of water gas shift hydrocarbon synthesis reactions and conversely higher coal conversions and distillate yields with high hydrogen consumptions. Preparations for a PDU Demonstration Run on Black Thunder Mine coal are underway. The British Coal Filtration Process will be used for solid separation. The results of microautoclave scale tests on Illinois, Ohio and Black Thunder Mine coals were reviewed and statistically analyzed to provide a sound basis for kinetic interpretation.
- Research Organization:
- Hydrocarbon Research, Inc., Princeton, NJ (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-88PC88818
- OSTI ID:
- 6041297
- Report Number(s):
- DOE/PC/88818-10; ON: DE92004520
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AUTOCLAVES
BENCH-SCALE EXPERIMENTS
BITUMINOUS COAL
BLACK COAL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
DOCUMENT TYPES
ECONOMICS
ENERGY SOURCES
FOSSIL FUELS
FUELS
LIQUEFACTION
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PROGRESS REPORT
REGENERATION
SUBBITUMINOUS COAL
SULFIDATION
TECHNOLOGY ASSESSMENT
THERMOCHEMICAL PROCESSES
YIELDS
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AUTOCLAVES
BENCH-SCALE EXPERIMENTS
BITUMINOUS COAL
BLACK COAL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
DOCUMENT TYPES
ECONOMICS
ENERGY SOURCES
FOSSIL FUELS
FUELS
LIQUEFACTION
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PROGRESS REPORT
REGENERATION
SUBBITUMINOUS COAL
SULFIDATION
TECHNOLOGY ASSESSMENT
THERMOCHEMICAL PROCESSES
YIELDS