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Promotion effects on the synthesis of higher alcohols. Sixth quarterly report, December 1983-February 1984

Technical Report ·
OSTI ID:5149454
;

During the sixth quarter of the project, a study of CO hydrogenation over alkali-promoted Rh/TiO/sub 2/ catalysts was carried out by addition of ethylene to clarify the alkali promotion effect on the specific reactions in this synthesis. The following conclusions for Rh/TiO/sub 2/ catalysts can be drawn from this study: (1) The active sites for oxygenate formation during CO hydrogenation over Rh/TiO/sub 2/ are not sensitive to the chemical nature of the alkali promoter while the active sites for hydrocarbon formation are strongly dependent upon the chemical properties of the alkali promoter. (2) K and Cs promoters significantly suppress ethylene incorporation into higher hydrocarbons. (3) The hydrogenation ability of Rh/TiO/sub 2/ catalysts decreases in the order: unpromoted > Li > K > Cs. Finally, the addition of small quantities of ethylene to the reactant stream provided an excellent way to probe modifications in a number of the reactions as a result of alkali promotion. 20 references, 2 tables.

Research Organization:
Pittsburgh Univ., PA (USA). Dept. of Chemical and Petroleum Engineering
DOE Contract Number:
FG22-82PC50810
OSTI ID:
5149454
Report Number(s):
DOE/PC/50810-T6; ON: DE84009916
Country of Publication:
United States
Language:
English

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Related Subjects

090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
090221* -- Alcohol Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKALI METALS
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CESIUM
CHALCOGENIDES
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DATA
ELEMENTS
ETHYLENE
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGENATION
INFORMATION
LITHIUM
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POTASSIUM
PROMOTERS
RESEARCH PROGRAMS
RHODIUM
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS