Trifunctional catalysts for conversion of syngas to alcohols: Tenth quarterly report for period December 1, 1986 to February 28, 1987. [CO chemisorbed on rhodium/alumina catalysts - one series modified by molybdena and the other by sodium addition]
Changes in adsorption sites on Rh/Al/sub 2/O/sub 3/ catalysts brought about by addition of sodium or by molybdena, was quantified by adsorption of hydrogen and of carbon monoxide. Fresh and used catalyst were tested. XRD was done to rule out the presence of crystalline compound formation. Infrared measurements showed that C-O bond is strengthened slightly by molybdena addition. Hence the enhanced activity of Rh/Mo/Al/sub 2/O/sub 3/ is caused neither by a greater number of CO sites nor by weakening of CO bond. The role of sodium in removing surface -OH groups, which in turn changes the distribution of different carbonyl species on the surface, was tested. Detailed kinetic data for Rh/Mo/Al/sub 2/O/sub 3/ having different amounts of molybdena were collected. Analysis of rate of formation for primary products were carried out. Activation energies for various reactions were calculated and its implication on the reaction scheme is discussed. The analysis of secondary reactions is underway. 6 figs., 4 tabs.
- Research Organization:
- Delaware Univ., Newark (USA). Center for Catalytic Science and Technology
- DOE Contract Number:
- FG22-84PC70780
- OSTI ID:
- 6741622
- Report Number(s):
- DOE/PC/70780-T6; ON: DE87007384
- Resource Relation:
- Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
Similar Records
Trifunctional catalysts for conversion of syngas to alcohols. Seventh quarterly report, March 1-May 31, 1986. [CO chemisorbed on Rh/Al/sub 2/O/sub 3/]
Trifunctional catalysts for conversion of syngas to alcohols: Twelfth quarterly report for period June 1, 1987 to August 31, 1987
Related Subjects
10 SYNTHETIC FUELS
ALUMINIUM OXIDES
CATALYTIC EFFECTS
SORPTIVE PROPERTIES
CARBON MONOXIDE
ADSORPTION
INFRARED SPECTRA
CATALYSTS
SPECIFICITY
HYDROGEN
MOLYBDENUM
RHODIUM
ACTIVATION ENERGY
ALCOHOLS
EXPERIMENTAL DATA
HYDROGENATION
MOLYBDENUM OXIDES
RESEARCH PROGRAMS
SODIUM
SYNTHESIS
X-RAY DIFFRACTION
ALKALI METALS
ALUMINIUM COMPOUNDS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COHERENT SCATTERING
DATA
DIFFRACTION
ELEMENTS
ENERGY
HYDROXY COMPOUNDS
INFORMATION
METALS
MOLYBDENUM COMPOUNDS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REFRACTORY METAL COMPOUNDS
SCATTERING
SORPTION
SPECTRA
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
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090221 - Alcohol Fuels- Chemical Synthesis- (1976-1989)