Selectivity of coal minerals as catalysts in coal liquefaction and hydrodesulfurization

Conference · Sat Jan 01 04:00:00 EST 1977 · Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6140238

Lee, J M; Tarrer, A R

In the hydroliquefaction of a high-volatile Kentucky bituminous coal at 410/sup 0/C and 2000 psi hydrogen in light recycle oil, yields of oil, asphaltenes, preasphaltenes, and pyridine-insolubles were 32.6, 38.4, 16.6, and 12.5% with no catalyst; 57.4, 37.8, 4.8, and 0% with cobalt-molybdenum on alumina; 41.4, 38.5, 19.3, and 0.9% with metallic iron; and 33.0, 45.2, 12.8, and 9.1% with a solvent-refined coal (SRC) residue. Hydrogen consumption was greatly increased by coal ash and SRC residue though not as much as by the cobalt-molybdenum catalyst; iron had little effect on hydrogen consumption. For hydrodesulfurization, iron was about as effective as cobalt-molybdenum but was less selective for sulfur removal from the asphaltenes; coal ash and SRC residue were totally ineffective due to hydrogen sulfide poisoning. The effect of catalysis by SRC residue on the solvent refining process, particularly excess hydrogen consumption due to gas formation, is discussed. 15 references, tables.

• Research Organization: Auburn Univ., AL
• OSTI ID: 6140238
• Conference Information: Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 22:6
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ASPHALTENES
ASPHALTS
AZINES
BITUMENS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COBALT
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON
KENTUCKY
LIQUEFACTION
MATERIALS
METALS
MOLYBDENUM
NONMETALS
NORTH AMERICA
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYRIDINES
REFRACTORY METALS
SOLVENT-REFINED COAL
SOUTHEAST REGION
SRC PROCESS
SULFIDES
SULFUR
SULFUR COMPOUNDS
TAR
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
USA