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Coprocessing of Highvale coal with Athabasca bitumen in syngas mixtures

Conference · · Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States)
OSTI ID:5652648
; ; ; ;
Coprocessing of Alberta subbituminous coal with bitumen is currently under investigation at the Alberta Research Council. The high oxygen content of the coal results in high hydrogen consumption. The present study compares the effectiveness of syngas/water mixtures catalyzed by potassium carbonate for coprocessing Highvale coal with Athabasca bitumen. Single-stage (solubilization) experiments were performed with syngas (5.1 MPa) at 390/sup 0/C in a stirred autoclave. In simulated two-stage experiments, the second (upgrading) stage employed hydrogen (8.5 MPa) at 440/sup 0/C with a potassium molybdate/dimethyl disulphide catalyst. Coal conversion improved from 47 to 78% systematically when the carbon monoxide: hydrogen ratio was varied from 1:3 to 7:1. The additional yield was confined to pyridine extractable material. In simulated two-stage experiments similar coal conversions were observed when using carbon monoxide/water (91%) or hydrogen (88%) in the first stage.
Research Organization:
Alberta Research Council, Coal Dept., 1091 - 5th St., Nisku, Alberta
OSTI ID:
5652648
Report Number(s):
CONF-860425-
Conference Information:
Journal Name: Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States) Journal Volume: 31:2
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010403* -- Coal & Coal Products-- Hydrogenation-- (-1987)
04 OIL SHALES AND TAR SANDS
040403 -- Oil Shales & Tar Sands-- Refining
ALBERTA
ALKALI METAL COMPOUNDS
ATHABASCA DEPOSIT
AUTOCLAVES
BITUMENS
CANADA
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CARBONATES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
GEOLOGIC DEPOSITS
HIGH TEMPERATURE
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGENATION
LIQUEFACTION
MATERIALS
MEDIUM PRESSURE
MIXING
MOLYBDATES
MOLYBDENUM COMPOUNDS
NONMETALS
NORTH AMERICA
OIL SAND DEPOSITS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
POTASSIUM SULFIDES
REFRACTORY METAL COMPOUNDS
SUBBITUMINOUS COAL
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS GAS
TAR
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WATER
YIELDS