Mechanisms and kinetics of coal hydrogenation. Quarterly progress report, April-June

Technical Report · Wed Jul 01 00:00:00 EDT 1981

OSTI ID:6438946

Baldwin, R M; Furlong, M W

Colorado School of Mines is engaged in an experimental program for the Department of Energy to develop comprehensive models for the effects of coal composition upon the kinetics and mechanisms of coal hydrogenation, for the effects of mineral matter additives (disposable catalysts) upon kinetics and mechanisms of coal hydrogenation, and for the kinetics and mechanisms of the hydrogenation of coal derived products such as preasphaltenes and asphaltenes. The continuous flow coal processing unit was modified to alleviate problems with non-representative sampling during the course of operation. A synthetic recycle oil solvent was prepared to allay any doubts regarding the distribution of reacted solvent components in the product samples. Data from the coal reactivity study was fitted by true second-order reversible kinetics expressions. The forward rate constants were correlated with H/C ratio, mean-max reflectance, and fraction reactive macerals of the parent coals. Kinetic reactivities were also shown to correlate with the percentage of volatile carbon in the parent coals. Intrinsic THF solubilities of the parent coals were measured experimentally and the resulting values incorporated in the evaluation of second-order rate constants. The reactivities were not significantly affected by this modification. Reproductibility tests were initiated in the disposable catalysts study. Agreement between these data and those from the initial phase of this study were fair. Further tests will be made to verify these results.

• Research Organization: Colorado School of Mines, Golden (USA). Dept. of Chemical and Petroleum Refining Engineering
• DOE Contract Number: AC22-79ET14881
• OSTI ID: 6438946
• Report Number(s): DOE/ET/14881-6; ON: DE81028210
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
HYDROGENATION
ASPHALTENES
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
MINERALS
ASPHALTS
BITUMENS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DATA
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
KINETICS
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
REACTION KINETICS
TAR
010403* - Coal & Coal Products- Hydrogenation- (-1987)