Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 5 for the period 1 October to 31 December 1986
Surface-confined ruthenium cluster catalysts have been prepared with alumina, Y-zeolite, and molecular sieve supports. The Al-Ru/sub 4/ and Al-Ru/sub 6/ hydridocarbonyl cluster complexes previously used to prepare alumina-supported cluster catalysts were used in similar surface-confining reactions with sodium Y-zeolite and molecular sieve zeolite supports. Infrared (FTIR) spectra, gas evolution, and elemental analysis were used to follow the surface-confining reaction. In all cases, the confined complexes of Al-Ru/sub 4/ and Al-Ru/sub 6/ had the composition -O-Al(C/sub 2/H/sub 5/)((H)Ru/sub 4/(CO)/sub 12/) and -O-Al(C/sub 2/H/sub 5/)((H)Ru/sub 6/(CO)/sub 18/), respectively. Monomeric ruthenium catalysts have also been prepared for all three supports by surface confining reactions with the complex (allyl)/sub 2/Ru(CO)/sub 2/. The support material has been shown to alter the inherent activity and selectivity of ruthenium Fischer-Tropsch synthesis (FTS) catalysts, and it may affect the stability of the ruthenium clusters during activation and FTS reaction. The series of Ru cluster catalysts ranges from one, four, and six atoms confined on surfaces of three supports with variable acidity and porosity, beta alumina, sodium Y-zeolite, and molecular sieve zeolite. These catalysts will be tested for FTS activity and selectivity for syn gas with H/sub 2//CO = 1.0 at 1 atm using a hot wax trap to determine if a catalyst shows a decline in the Schultz-Flory Anderson product distribution above decane. A potassium and copper doubly-promoted precipitated iron catalyst was prepared for evaluation of the effect of sulfur treatment on the methane selectivity and olefin-to-paraffin ratio of light hydrocarbons. 9 refs.
- Research Organization:
- SRI International, Menlo Park, CA (USA)
- DOE Contract Number:
- AC22-85PC80016
- OSTI ID:
- 6524910
- Report Number(s):
- DOE/PC/80016-T3; ON: DE87010705
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 7, 1 April 1987-30 June 1987
Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 7 for the period 1 April to 30 June 1987
Related Subjects
CATALYSTS
CATALYST SUPPORTS
CHEMICAL PREPARATION
PERFORMANCE TESTING
FISCHER-TROPSCH SYNTHESIS
RUTHENIUM
CATALYTIC EFFECTS
ALUMINIUM OXIDES
FOURIER TRANSFORMATION
GAS CHROMATOGRAPHY
INFRARED SPECTRA
MOLECULAR SIEVES
NUCLEAR MAGNETIC RESONANCE
PROMOTERS
SPECIFICITY
SURFACE AREA
ZEOLITES
ADSORBENTS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMATOGRAPHY
ELEMENTS
INORGANIC ION EXCHANGERS
INTEGRAL TRANSFORMATIONS
ION EXCHANGE MATERIALS
MAGNETIC RESONANCE
MATERIALS
METALS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
RESONANCE
SEPARATION PROCESSES
SPECTRA
SURFACE PROPERTIES
SYNTHESIS
TESTING
TRANSFORMATIONS
TRANSITION ELEMENTS
090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)