Improved catalysts for coal liquefaction. Quarterly report No. 3, March 1-May 31, 1985

Technical Report · Thu Jun 27 04:00:00 EDT 1985

OSTI ID:5664379

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

Shakedown runs of the bench scale hydrotreating unit were initiated in May. The only serious operational problem experienced was an adherence of viscous product to the walls of the high pressure accumulator. This made it difficult to close a material balance around the unit. New product accumulators have been designed which can be removed from the unit and weighed for liquid product yield. The temperature programmed desorption apparatus is proving to be a valuable tool for characterizing surface acidity. An AMOCO exploratory silica-alumina support exhibits a well-defined ..beta..-peak indicating a substantial number of acid sites. The ..beta..-peak was essentially absent in a silica support, and an alumina support was characterized by a wide poorly resolved ..beta..-peak which suggests a wide distribution of acid site strengths. The high acidities reported previously for the hydrotreating catalysts are due to metals loading, and in particular loading with molybdenum. Indications are that the metal sulfides may be less acidic than the oxides. An alumina-aluminum phosphate composite has been prepared in which practically all the pore volume is in pores larger than 5 ..mu..m. The coal derived feedstock has been subjected to further analysis by proton and carbon-13 NMR. 7 refs., 10 figs., 4 tabs.

• Research Organization: Wyoming Univ., Laramie (USA). Dept. of Chemical Engineering
• DOE Contract Number: FG22-84PC70812
• OSTI ID: 5664379
• Report Number(s): DOE/PC/70812-3; ON: DE85014156
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BENCH-SCALE EXPERIMENTS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COBALT COMPOUNDS
COBALT OXIDES
DATA
DEACTIVATION
DESORPTION
EXPERIMENTAL DATA
FLUIDS
HYDROGENATION
INFORMATION
LIQUEFACTION
LIQUIDS
MATERIAL BALANCE
MINERALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
POROSITY
REFRACTORY METAL COMPOUNDS
RESEARCH PROGRAMS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SURFACE AREA
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS