Advanced coal liquefaction research. Quarterly technical progress report, January 1-March 31, 1983

Technical Report · Thu Dec 01 00:00:00 EST 1983

OSTI ID:6933464

This report describes progress on the Advanced Coal Liquefaction project by the Gulf Research and Development Company's Merriam Laboratory during the months of January through March 1983. The liquefaction behavior of Illinois No. 6 coal beneficiated in various ways was studied in both single-stage recycle (SRC II) and short contact time (SCT) modes of operation. The distillate yield increased as the iron level in the feed slurry increased in both modes of operation. In the SCT mode, the conversion increased at greater depths of cleaning. In the SRC II mode, the distillate yield and conversion were much higher with deep cleaning and add-back of pyrite than with conventional cleaning. Pyrite addition resulted in a significant increase in short contact time conversion of subbituminous Belle Ayr coal in both high and low quality solvents. Solvent quality itself, however, had little effect on conversion. With Loveridge coal, the hydrocarbon gas yield and conversion decreased as the residence time was reduced in the range of 3 to 8 minutes. The bottoms product was filterable only at residence times of 6 minutes or greater. Addition of a small amount of nickel to a molybdenum emulsion catalyst improved yields slightly with Belle Ayr coal in the SRC II mode. Higher levels of nickel resulted in the same oil yield as with none at all.

• Research Organization: Gulf Research and Development Co., Shawnee Mission, KS (USA)
• DOE Contract Number: AC22-82PC50001
• OSTI ID: 6933464
• Report Number(s): DOE/PC/50001-15; ON: DE84004074
• Resource Relation: Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL LIQUEFACTION
RESEARCH PROGRAMS
MOLYBDENUM
CATALYTIC EFFECTS
NICKEL
PYRITE
SRC-II PROCESS
COAL PREPARATION
YIELDS
COAL
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
TIME DEPENDENCE
CARBONACEOUS MATERIALS
CHALCOGENIDES
DATA
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
IRON COMPOUNDS
IRON SULFIDES
LIQUEFACTION
MATERIALS
METALS
MINERALS
NUMERICAL DATA
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction