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Title: Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 5 for the period 1 October to 31 December 1986

Abstract

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 tomore » 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.« less

Authors:
; ;
Publication Date:
Research Org.:
SRI International, Menlo Park, CA (USA)
OSTI Identifier:
6524910
Report Number(s):
DOE/PC/80016-T3
ON: DE87010705
DOE Contract Number:  
AC22-85PC80016
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 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)

Citation Formats

Tong, G T, Wilson, R B, and McCarty, J G. Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 5 for the period 1 October to 31 December 1986. United States: N. p., 1987. Web.
Tong, G T, Wilson, R B, & McCarty, J G. Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 5 for the period 1 October to 31 December 1986. United States.
Tong, G T, Wilson, R B, and McCarty, J G. Fri . "Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 5 for the period 1 October to 31 December 1986". United States.
@article{osti_6524910,
title = {Improved Fischer-Tropsch synthesis catalysts for indirect coal liquefaction: Quarterly technical progress report No. 5 for the period 1 October to 31 December 1986},
author = {Tong, G T and Wilson, R B and McCarty, J G},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {4}
}

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