Reactivity of coal in direct hydrogenation processes. Technical progress report, September-November 1985

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6291831

Baldwin, R M

This document summarizes the first quarter of research into the relationship between coal characteristics and coal reactivity in direct hydrogenation processes. The objective of the research program is to measure and model the rate and extent of coal liquefaction under some standard set of conditions for a wide suite of coals, and then correlate the observed liquefaction reactivity to basic coal chemical and geochemical features. The first quarter of this program has dealt with determination of a standard set of reaction conditions that will be used for purposes of data acquisition in the later phases of the program. The variables investigated to date include vehicle type (hydrogen donor/non-donor), vehicle-to-coal ratio, reaction time, hydrogen partial pressure, and temperature. All runs are being carried out in a micro-autoclave tubing bomb reactor. Initial variable screening is being done using a bituminous coal from the upper Freeport seam, Homer City, Pennsylvania, which has been obtained from the Argonne National Laboratory under their premium coal sample program. For purposes of reactivity variable screening, this coal has been found to be very satisfactory. Results of the first phase of the program have indicated that the preferred vehicle for this program is 1-methylnaphthalene. A solvent-to-coal ratio of 1/1 (wt. ratio), with an initial (cold) pressure of 900 psi have been found to be optimal for generation of the required kinetic data. Residence times as short as 2 minutes for the temperature range from 350 to 450C have been demonstrated, thus permitting elucidation of the reactivity profile over a wide temperature range. 1 ref., 9 figs., 6 tabs.

• Research Organization: Colorado School of Mines, Golden (USA). Dept. of Chemical Engineering and Petroleum Refining
• DOE Contract Number: FG22-85PC80907
• OSTI ID: 6291831
• Report Number(s): CSM-082-839; ON: DE86004923
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AROMATICS
AUTOCLAVES
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
CONDENSED AROMATICS
DATA
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
HYDROGEN
HYDROGEN TRANSFER
HYDROGENATION
INFORMATION
KINETICS
LIQUEFACTION
MATERIALS
MEDIUM PRESSURE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PARTIAL PRESSURE
PRESSURE EFFECTS
REACTION KINETICS
RESEARCH PROGRAMS
SOLVENTS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES
YIELDS