Low severity coal liquefaction to determine reactivity of coals: Technical progress report No. 1 for the period 6/24/86 through 8/31/86

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:7161904

Chung, K E

The objectives of this investigation are (1) to determine the reactivity of bituminous coals for liquefaction using moderate temperature hydrogenation, and (2) to examine the reaction chemistry involved in the moderate temperature liquefaction as a function of reaction time, temperature and catalyst application. The experimental work involves hydrogenation of a bituminous coal at 325/sup 0/C in the absence of a donor solvent and catalyst. Then, the effect of reaction temperature and catalysts will be studied at temperatures between 300 and 350/sup 0/C using two catalysts, FeS/sub 2/ and ammonium molybdate. In the first experiment, an Illinois bituminous coal was reacted at 325/sup 0/C under H/sub 2/ pressure of 2900 psig for 27 h. The gaseous product contained CO/sub 2/, CO, H/sub 2/O, CH/sub 4/, C/sub 2/H/sub 6/ and C/sub 3/H/sub 8/. The CO/sub 2/ yield was 0.8% of the feed coal, and C/sub 1/-C/sub 3/ gas yield was 3.0%. These yields are approximately 50% of potential yields determined in our characterization study. The conversion to gaseous and soluble products was more than 90%. The yield ratio of oil, asphaltenes and preasphaltenes is 2:3:1. The gaseous products and high conversion reveal that the coal underwent significant chemical changes under the mild conditions. 3 refs., 2 figs., 2 tabs.

• Research Organization: Rockwell International Corp., Thousand Oaks, CA (USA). Science Center
• DOE Contract Number: FG22-86PC90912
• OSTI ID: 7161904
• Report Number(s): DOE/PC/90912-T1; ON: DE87003123
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKANES
ASPHALTENES
ASPHALTS
AUTOCLAVES
BITUMENS
BITUMINOUS COAL
BLACK COAL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL
COAL LIQUEFACTION
DATA
ENERGY SOURCES
ETHANE
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGENATION
INFORMATION
INFRARED SPECTRA
LIQUEFACTION
MATERIALS
METHANE
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PROPANE
RESEARCH PROGRAMS
SEPARATION PROCESSES
SPECTRA
TAR
THERMOCHEMICAL PROCESSES
WATER
YIELDS