Promotion effects on the synthesis of higher alcohols. Final report

Technical Report · Fri Aug 30 04:00:00 EDT 1985

OSTI ID:5152067

Goodwin, Jr, J G; Chuang, S C

The importance of the direct syntheses of higher (C/sub 2/-C/sub 6/) alcohols from synthesis gas as a promising route for providing clean fuels and petrochemical feedstocks is generally recognized. It is known that the addition of alkali salts to methanol synthesis catalysts increases the production of higher alcohols. However, few investigations have been made into the effect of various alkali species on the synthesis of oxygenates from CO and hydrogen. A series of research studies have been carried out which greatly expand current knowledge in this area. The objectives of these studies were to investigate the reaction pathways for and the effect of alkali promotion (Li/sup +/, K/sup +/, Rb/sup +/, Cs/sup +/) on the formation of oxygenated compounds from synthesis gas. A series of Group VIII metals (Ni, Ru, Rh, and Pd) and alkali-promoted Rh and Pd catalysts were studied using CO hydrogenation and a chemical probing method with ethylene, ethanol, and acetaldehyde as probe molecules. The chemical probing method developed for this study was demonstrated to be an effective way to: (1) identify the possible reaction network occurring on these catalysts; (2) study the interrelationships between oxygenate and hydrocarbon synthesis; (3) determine the catalytic properties of the catalyst surfaces; and (4) investigate support and alkali promotion effects on the reaction pathways to oxygenates and hydrocarbons. 150 refs., 27 figs., 46 tabs.

• Research Organization: Pittsburgh Univ., PA (USA). Dept. of Chemical and Petroleum Engineering
• DOE Contract Number: FG22-82PC50810
• OSTI ID: 5152067
• Report Number(s): DOE/PC/50810-T11; ON: DE85018269
• Country of Publication: United States
• Language: English

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ACETALDEHYDE
ALCOHOLS
ALDEHYDES
ALKALI METAL COMPOUNDS
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CATIONS
CESIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DATA
ELEMENTS
ETHANOL
ETHYLENE
EXPERIMENTAL DATA
FLUIDS
GASES
HYDROCARBONS
HYDROGENATION
HYDROXY COMPOUNDS
INFORMATION
IONS
KINETICS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LITHIUM COMPOUNDS
METALS
MINERALS
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PLATINUM METALS
POTASSIUM COMPOUNDS
PROBES
PROMOTERS
RARE EARTH COMPOUNDS
REACTION KINETICS
RESEARCH PROGRAMS
RHODIUM
RUBIDIUM COMPOUNDS
RUTHENIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SPECIFICITY
SYNTHESIS
SYNTHESIS GAS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YIELDS