Optimum catalytic process for alcohol fuels from syngas: Sixth quarterly technical progress report, April--June, 1988

Technical Report · Fri Jul 29 04:00:00 EDT 1988

OSTI ID:6682599

Dombek, B D

Objectives are to discover and evaluate the catalytic properties of combination catalytic systems for the production of alcohol fuel extenders from syngas, to evaluate analytically and on the bench scale novel reactor concepts for use in converting syngas to liquid fuel products, and to develop on the bench scale the best combination of chemistry, reactor, and total process configuration to achieve the minimum product cost for conversion of syngas to liquid fuel products. The study of additional additives to the homogeneous ruthenium catalyst in the search for improved activity continued. Certain Mo and Ir compounds slightly increased the selectivity to higher alcohols. Platinum, copper, and palladium compounds tested are severe catalyst poisons. Phosphine compounds tested either retard the catalyst activity slightly or completely poison the system. Chemical model studies have been carried out to investigate the mechanism of homogeneous hydrogenation of CO. Results indicate that the first interaction between hydrogen and CO could be a reaction between a metal hydride and an activated carbon monoxide ligand bonded to a metal center. Investigations into improving the performance of alkali-loaded molybdenum sulfide based catalysts have continued. Also, experiments have tested a number of alternative procedures for the preparation of fuel alcohol catalysts. None of the catalysts tested has been superior to the standard catalysts. MoS/sub 2/ with higher surface area has been prepared by changing the ammonium tetrathiomolybdate preparation procedure and stopping the H/sub 2/S feed sooner. Catalysts prepared by low temperature calcination to first produce MoS/sub 3/, then impregnating and calcining were little different from the standard except for slower a rate. Two catalysts were prepared from ammonium tetrathiomolybdate precipitated by a process yielding fine particles. Neither gave improved rate or selectivity. 14 figs., 8 tabs.

• Research Organization: Union Carbide Corp., South Charleston, WV (USA). Solvents and Coatings Materials Div.
• DOE Contract Number: AC22-86PC90013
• OSTI ID: 6682599
• Report Number(s): DOE/PC/90013-T6; ON: DE89002733
• Country of Publication: United States
• Language: English

Related Subjects

090220* -- Alcohol Fuels-- Preparation-- (1976-1989)
10 SYNTHETIC FUELS
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
ADDITIVES
ALCOHOL FUELS
BENCH-SCALE EXPERIMENTS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COPPER COMPOUNDS
DEACTIVATION
DOCUMENT TYPES
FUELS
HYDROGENATION
IRIDIUM COMPOUNDS
KINETICS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
OXIDES
OXYGEN COMPOUNDS
PALLADIUM COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
PLATINUM COMPOUNDS
PRODUCTION
PROGRESS REPORT
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
SYNTHETIC FUELS
TRANSITION ELEMENT COMPOUNDS
YIELDS