Role of non-ferrous coal minerals and by-product metallic wastes in coal liquefaction. Technical progress report, March 1, 1981-May 31, 1981

Technical Report · Mon Jun 01 04:00:00 EDT 1981

OSTI ID:5414583

Garg, D; Givens, E N; Schweighardt, F K; Curtis, C W; Guin, J A; Huang, W J; Shridharani, K

This report covers results from both tubing-bomb experiments and continuous PDU runs. The following materials were evaluated in the PDU on Elkhorn No. 2 coal from Floyd County, Kentucky: Molybdic oxides; iron oxide; pyrite; pyrite/iron oxide mixture, and iron sulfate impregnation. A base case liquefaction run was also made for direct comparison. All of the above materials were examined at both 825 and 850/sup 0/F. Tubing-bomb experiments are reported on pyrite, red mud, sodium sulfide and organic compounds of cobalt, nickel, molybdenum, zinc, chromium and lead. Significant conclusions were drawn on the catalysis by different materials. Especially significant was the higher level of activity resulting from impregnation versus particle incorporation of the catalyst in the system. Impregnation of coal decreased the hydrocarbon gases yield and increased oil yield. Hydrogen consumption was significantly reduced by impregnation. Addition of molybdic oxide containing 90% MoO/sub 3/ and 10% silica to coal liquefaction reaction mixture had the following effect: coal conversion increased, oil yield increased by more than a factor of two at both temperatures, hydrogen consumption increased, solvent/oil fraction showed substantial increase in hydrogen content, and molybdenum in the resulting liquefaction residue was apparently transformed into an amorphous material. A more thorough evaluation of completely sulfided molybdenum will be made to see if its activity increases. In the tubing-bomb experiments organic compound of molybdenum showed the highest activity for coal conversion and oil production. Significant synergism was noted between red mud and sodium sulfide in the coal liquefaction reaction.

• Research Organization: Air Products and Chemicals, Inc., Trexlertown, PA (USA); Auburn Univ., AL (USA)
• DOE Contract Number: AC22-79ET14806
• OSTI ID: 5414583
• Report Number(s): DOE/ET/14806-21; ON: DE82009191
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
COAL LIQUEFACTION
DATA
EXPERIMENTAL DATA
INFORMATION
IRON COMPOUNDS
IRON OXIDES
IRON SULFATES
IRON SULFIDES
LIQUEFACTION
MINERALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYRITE
SULFATES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SYNERGISM
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS