Kinetics of short contact time coal liquefaction Part 11: Effect of nature of coal and solvent

Journal Article · Thu Mar 01 04:00:00 EST 1984 · AIChE J.; (United States)

DOI:https://doi.org/10.1002/aic.690300220· OSTI ID:6727452

Abichandani, J S; Cronauer, D C; Shah, Y T; Wieland, J H

A bituminous coal (Powhatan No. 5) and a subbituminous coal (Belle Ayr) were liquefied in the presence of hydrogen donor solvents. Statistical analyses of the data showed that for contact times up to 10 min, the coal conversion, measured in terms of tetrahydrofuran solubles, was not significantly different for the two coals. However, the subbituminous coal gave more asphaltenes than the bituminous coal. The hydrogen-donating capacity of the solvent was varied by the addition of hydrogenated phenanthrene to SRC-II recycle solvent. The results indicated that there are two routes for the formation of oils from coal. One is by adduct formation giving asphaltenes and preasphaltenes, which in turn give oils, and the other is direct oil formation from coal. The preferred route depends on the hydrogendonating capacity of the solvent. The kinetic model, proposed in Part I of this paper, is extended to account for the change in the donor capacity of the solvent.

• Research Organization: Dept. of Chemical and Petroleum Eng., Univ. of Pittsburgh, Pittsburgh, PA 15261
• OSTI ID: 6727452
• Journal Information: AIChE J.; (United States), Journal Name: AIChE J.; (United States) Vol. 30:2; ISSN AICEA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ADDUCTS
AROMATICS
ASPHALTENES
ASPHALTS
BITUMENS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
CONDENSED AROMATICS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGEN TRANSFER
HYDROGENATION
KINETICS
LIQUEFACTION
LIQUIDS
MATERIALS
MATHEMATICAL MODELS
OIL YIELDS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHENANTHRENE
PRODUCTION
REACTION KINETICS
SOLVENTS
SUBBITUMINOUS COAL
TAR
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
YIELDS