Research on solvent-refined coal. Technical progress report, April 1-July 31, 1982

Technical Report · Fri Oct 01 04:00:00 EDT 1982

OSTI ID:6837932

This report describes progress on the Research on Solvent Refined Coal project by The Pittsburgh and Midway Coal Mining Company's Merriam Laboratory during the months of April through July 1982. A variables study was conducted with Belle Ayr coal to explore the range of operability for liquefaction of subbituminous coal with added pyrite. It was found that this coal can be processed successfully at much milder conditions than used previously, although there is some sacrifice in yields. Additive levels as low as 0.6 wt % FeS/sub 2/ (based on MF coal) can be used, provided the feed slurry formulation is adjusted to control viscosity. There are decreases in total oil yield and increases in SRC and IOM yields as pyrite level, dissolver pressure or dissolver temperature are decreased below 4.8 wt %, 2250 psig or 450/sup 0/C, respectively. A ferrous sulfate emulsion was found to be ineffective as a catalyst with Belle Ayr coal, apparently because it was not converted to an active sulfide form in the dissolver. An emulsion comprised of ammonium molybdate and nickel sulfate provided high oil yields but did not increase denitrogenation over ammonium molybdate alone.

• Research Organization: Pittsburg and Midway Coal Mining Co., Shawnee Mission, KS (USA)
• DOE Contract Number: AC22-81PC40005
• OSTI ID: 6837932
• Report Number(s): DOE/PC/40005-23; ON: DE83000959
• 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
CHALCOGENIDES
CHROMATOGRAPHY
COAL
COAL LIQUEFACTION
COAL LIQUIDS
DATA
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FRACTIONATION
FUELS
INFORMATION
IRON COMPOUNDS
IRON SULFIDES
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MATERIALS
METALS
MINERALS
MOLYBDENUM
NICKEL
NUMERICAL DATA
PYRITE
SEPARATION PROCESSES
SRC-II PROCESS
SUBBITUMINOUS COAL
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YIELDS