Mineral matter effects in coal liquefaction. 1. Autoclave screening study. [10 refs]

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:7096814

Granoff, B.; Thomas, M. G.

Several high-volatile bituminous coals were hydroliquefied, in a one-liter autoclave, at a temperature of 430/sup 0/C, initial (cold) H/sub 2/ pressure of 1000 psig, and residence time of 30 min. All experiments were carried out in creosote oil as the solvent, at a solvent: coal ratio of 2.3: 1. The feed coals ranged in mineral content from 21 percent to 5 percent, and in sulfur content from over 6 percent to under 1 percent. The coals had similar maceral distributions, and most were vitrinite-rich (greater than 85 percent). Conversions, calculated by an ash balance on the acetone-washed residues, varied from 62 to 94 percent. The liquid products were assessed in terms of sulfur content and (Brookfield) viscosity. The sulfur contents ranged from 0.43 to 0.69 percent; the viscosities (at 60/sup 0/C) varied from 75 to 761 cps. A good correlation was found between the mineral content of the feed coal and the extent of organic sulfur removal and product viscosity. The highest conversions were found for the coals having the highest mineral contents.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 7096814
• Report Number(s): SAND-77-0555C; CONF-770814-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
AUTOCLAVES
BENCH-SCALE EXPERIMENTS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL ANALYSIS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
IRON COMPOUNDS
IRON SULFIDES
LIQUEFACTION
MEDIUM PRESSURE
MINERALS
NONMETALS
ORES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PYRITE
PYRITES
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR ORES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VISCOSITY