Advanced coal liquefaction research. Technical progress report, January 1-April 30, 1984

Technical Report · Sun Jul 01 04:00:00 EDT 1984

OSTI ID:6153278

The significant improvement in product quality reported last year for bituminous and subbituminous coals has been demonstrated with lignite. As discussed previously, use of a vapor-phase hydrotreater and recycle of all heavy distillate advances the SRC II process far beyond that envisioned for the original demonstration plant. As with the other coal ranks, all net distillate product from the lignite boils below 345/sup 0/C (653/sup 0/F) and has a nitrogen concentration on the order of 1 ppM. It was also confirmed that the Texas Big Brown lignite can be processed successfully in this mode without added catalyst. Both subbituminous Belle Ayr and bituminous Illinois No. 6 coals were processed in an integrated two-stage mode, without depressurization or solids separation between stages. Operation was relatively smooth with a fixed-bed second stage employing a high-void-volume (star-shaped) catalyst support, which was operated upflow. There was no evidence that H/sub 2/S addition improved yields with Belle Ayr coal and added pyrite or that H/sub 2/S could be used in place of pyrite to catalyze the reaction. 84 figures, 6 tables.

• Research Organization: Gulf Research and Development Co., Shawnee Mission, KS (USA)
• DOE Contract Number: AC22-82PC50001
• OSTI ID: 6153278
• Report Number(s): DOE/PC/50001-31; ON: DE85006940
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ACTIVATION ANALYSIS
BITUMINOUS COAL
BLACK COAL
BROWN COAL
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL
COAL LIQUEFACTION
COAL LIQUIDS
DATA
DIAGRAMS
ENERGY SOURCES
EXPERIMENTAL DATA
FLOWSHEETS
FLUIDS
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROGENATION
INFORMATION
INFRARED SPECTRA
IRON COMPOUNDS
IRON SULFIDES
LIGNITE
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MATERIALS
MINERALS
NUMERICAL DATA
PYRITE
RECYCLING
SEPARATION PROCESSES
SPECTRA
SRC-II PROCESS
SUBBITUMINOUS COAL
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TSL PROCESS
YIELDS