Trifunctional catalysts for conversion of syngas to alcohols: Eleventh quarterly report for period March 1, 1987 to May 31, 1987
Technical Report
·
OSTI ID:6430206
Changes in the chemical state of Rh and Mo, and the dispersion of Mo due to different treatments and Mo loadings was studied by X-Ray Phototelectron Spectroscopy. The results show well dispersed Mo on Mo/Al/sub 2/O/sub 3/ and aggregated Mo on Rh-Mo/Al/sub 2/O/sub 3/. The crystallite size of Mo-oxide particles in Rh-Mo/Al/sub 2/O/sub 3/ was estimated using Kerkhof and Moulijn method to be approx. 20A. Electron Spin Resonance Spectroscopy measurements on catalysts show presence of paramagnetic Mo species on reduction and corroborate XPS results. Mo and Rh loadings were determined by X-Ray Fluorescence. Ethylene hydrogenation was carried out on Rh/Al/sub 2/O/sub 3/, Mo/Al/sub 2/O/sub 3/ and Rh-Mo/Al/sub 2/O/sub 3/ in the presence and in the absence of carbon monoxide in the gas phase. Carbon monoxide in the gas phase acts as an ON/OFF switch for ethylene hydrogenation on Rh/Al/sub 2/O/sub 3/. Rh-Mo/Al/sub 2/O/sub 3/ acts like Rh/Al/sub 2/O/sub 3/ for ethylene hydrogenation in the absence of carbon monoxide and like Mo/Al/sub 2/O/sub 3/ in the presence of carbon monoxide.
- Research Organization:
- Delaware Univ., Newark (USA). Center for Catalytic Science and Technology
- DOE Contract Number:
- FG22-84PC70780
- OSTI ID:
- 6430206
- Report Number(s):
- DOE/PC/70780-T7; ON: DE87011626
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090221* -- Alcohol Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL GASIFICATION
ELECTRON SPECTROSCOPY
ELECTRON SPIN RESONANCE
ELEMENTS
ETHYLENE
FLUIDS
GASES
GASIFICATION
HYDROCARBONS
HYDROGENATION
MAGNETIC RESONANCE
METALS
MOLYBDENUM
NONDESTRUCTIVE ANALYSIS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PLATINUM METALS
RESONANCE
RHODIUM
SPECTROSCOPY
SYNTHESIS
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS
10 SYNTHETIC FUELS
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL GASIFICATION
ELECTRON SPECTROSCOPY
ELECTRON SPIN RESONANCE
ELEMENTS
ETHYLENE
FLUIDS
GASES
GASIFICATION
HYDROCARBONS
HYDROGENATION
MAGNETIC RESONANCE
METALS
MOLYBDENUM
NONDESTRUCTIVE ANALYSIS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PLATINUM METALS
RESONANCE
RHODIUM
SPECTROSCOPY
SYNTHESIS
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS