Liquefaction of low rank coals with slurry catalysts. Part II. Comparison of catalysts. [Low rank coals]

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

OSTI ID:6523327

One of the most significant achievements over the last several years in development of the SRC-II process was extension of its applicability to include low rank coals. With addition of moderate amounts of pyrite, operation was trouble free and oil yields exceeding those obtainable with higher rank feedstocks were obtained. In addition, product sulfur level was lower due to the relatively low sulfur content of the lower rank coals. Pyrite was the first catalyst tried and numerous other materials were investigated in an attempt to find a better additive. These included emulsions (Mo, Fe and Ni/Mo), ferric oxide alone and doped with Mo, iron on Al/sub 2/O/sub 3/ and several sources of H/sub 2/S. None were found to be more effective, and on the basis of cost, pyrite is still preferred. Additive levels much lower than those used initially were found to be sufficient for smooth operation. As little as 0.6 wt % FeS/sub 2/, based on MF Belle Ayr coal, provided satisfactory operation, which makes use of low rank coals in the SRC II process even more attractive. 8 figures, 6 tables.

• Research Organization: Gulf Research and Development Co., Shawnee Mission, KS (USA)
• DOE Contract Number: AC22-82PC50001
• OSTI ID: 6523327
• Report Number(s): DOE/PC/50001-33; ON: DE85001161
• 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
CATALYSTS
COMPARATIVE EVALUATIONS
COAL
PETROGRAPHY
SRC-II PROCESS
YIELDS
COAL LIQUEFACTION
COAL RANK
EXPERIMENTAL DATA
CARBONACEOUS MATERIALS
DATA
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
LIQUEFACTION
MATERIALS
NUMERICAL DATA
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction