Catalyst dispersion and activity under conditions of temperature-staged liquefaction

Technical Report · Sat Jun 01 00:00:00 EDT 1991

OSTI ID:5658130

Davis, A; Schobert, H H; Mitchell, G D; Artok, L

Objectives of this research are (1) to investigate the use of highly dispersed catalysts for the pretreatment of coal by mild hydrogenation, (2) to identify the active forms of the catalysts under reaction conditions and (3) to clarify the mechanisms of catalysis. The experimental program will focus upon the development of effective methods of impregnating coal with catalysts, evaluating the conditions under which the catalysts are most active and establishing the relative impact of improved impregnation on conversion and product distributions obtained from coal hydrogenation. Four catalyst materials have been selected for this investigation: ammonium tetrathiomolybdate, ferrous sulfate, molybdenum hexacarbonyl, and iron pentacarbonyl. Results are presented for liquefaction experiments performed on pre-swollen coals with and without catalysts at 275{degrees}C. 4 refs., 4 tabs.

• Research Organization: Pennsylvania State Univ., University Park, PA (United States). Energy and Fuels Research Center
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-89PC89877
• OSTI ID: 5658130
• Report Number(s): DOE/PC/89877-6; ON: DE91016602
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
AMMONIUM COMPOUNDS
CATALYTIC EFFECTS
COAL LIQUEFACTION
OPTIMIZATION
IRON
MOLYBDENUM
CARBONYLS
IRON SULFATES
MOLYBDATES
ORGANIC SOLVENTS
PETROGRAPHY
PROGRESS REPORT
SWELLING
VITRINITE
YIELDS
DOCUMENT TYPES
ELEMENTS
IRON COMPOUNDS
LIQUEFACTION
MACERALS
METALS
MOLYBDENUM COMPOUNDS
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SOLVENTS
SULFATES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction