Improved catalysts for coal liquefaction. Quarterly report No. 5, September 1, 1985-November 30, 1985

Technical Report · Mon Dec 30 04:00:00 EST 1985

OSTI ID:6378332

Haynes, Jr, H W; Baker, J R; McCormick, R L

Three bench scale hydrotreating runs were completed during the last quarter using a distillate fraction of a coal pyrolysis oil as the feedstock. The first of these, Run BMC05, was a process variable study which was terminated after nearly 400 hours of continuous operation. A kinetics model for specific gravity reduction was developed from these data. The decelopment of kinetics models for hydrogen uptake and heteroatom removal must await completion of the analytical workup of the liquid products. Two deactivation runs were undertaken to explore the effects of sodium impregnation on catalyst deactivation rate. Analytical workup of the products is not yet complete. A number od exploratory catalyst preparations were characterized by temperature programmed desorption (TPD) of an organic base. The acidity of a WO/sub 3//alumina catalyst was similar to MoO/sub 3//alumina. The acidity of sulfided molybdate on a carbon support was almost nil. This is surprising the view of our results with alumina based catalysts and the fact that unsupported MoS/sub 2/ prepared by thermal decomposition of ammonium thiomolybdate is acidic. Hydrotreating catalysts containing various additives - magnesium, phosphorous, cobalt and nickel have also been characterized. 14 refs., 7 figs., 4 tabs.

• Research Organization: Wyoming Univ., Laramie (USA). Dept. of Chemical Engineering
• DOE Contract Number: FG22-84PC70812
• OSTI ID: 6378332
• Report Number(s): DOE/PC/70812-5; ON: DE86004551
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ADDITIVES
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BENCH-SCALE EXPERIMENTS
CARBON
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL LIQUEFACTION
DATA
DEACTIVATION
ELEMENTS
EXPERIMENTAL DATA
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INFORMATION
LIQUEFACTION
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PH VALUE
REFRACTORY METAL COMPOUNDS
RESEARCH PROGRAMS
SODIUM
SULFIDATION
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES