Studies in coal liquefaction with application to the SRC and related processes. Quarterly report, February-April 1983

Technical Report · Thu Mar 01 04:00:00 EST 1984

OSTI ID:5070786

Tarrer, A R; Guin, J A; Curtis, C W

This report examines the catalytic and thermal liquefaction of coal to determine the nature and extent of pore diffusion limitations in various stages of coal liquefaction. It was found that the progressive sequence according to the model Coal + ..cap alpha.. oil ..-->.. Preasphaltenes ..-->.. Asphaltenes ..-->.. Oils; Coal ..-->.. Gas satisfactorily represented the kinetics of thermal as well as catalytic liquefaction of coal. The pseudo-first order rate constants were determined for catalytic as well as thermal runs. The reactions (1) coal + ..cap alpha.. oil ..-->.. preasphaltenes and (2) coal ..-->.. gases, were found to be thermal in nature. The reactions, preasphaltenes ..-->.. asphaltenes and asphaltenes ..-->.. oils were strongly influenced by the powdered catalyst; however, the reaction, preasphaltenes ..-->.. asphaltenes, was severely limited by pore diffusion rates in the catalyst pellet.

• Research Organization: Auburn Univ., AL (USA). Coal Conversion Lab.
• DOE Contract Number: AC22-79ET13397
• OSTI ID: 5070786
• Report Number(s): DOE/ET/13397-18; ON: DE84008202
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMISTRY
COAL
COAL LIQUEFACTION
DIFFUSION
DISSOLUTION
ENERGY SOURCES
ENGINEERING
FOSSIL FUELS
FOURIER TRANSFORMATION
FUELS
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
LIQUEFACTION
MATERIALS
MINERALS
NONDESTRUCTIVE ANALYSIS
PARAMETRIC ANALYSIS
SPECTRA
SRC PROCESS
THERMOCHEMICAL PROCESSES
TRANSFORMATIONS
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS