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Title: Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 2, January 16, 1987--April 15, 1987

Abstract

The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that can, as economics dictate, be subsequently converted either to liquid fuels or value-added chemicals. In this program we are exploring two approaches to developing such catalysts. The first approach consists of developing advanced catalysts for reforming methane. We will prepare the catalysts by reacting organometallic complexes of transition metals (Fe, Ru, Rh, and Re) with zeolitic and rare-earth-exchanged zeolitic supports to produce surfaceconfined metal complexes in the zeolite pores. Our second approach entails synthesizing the porphyrin and phthalocyanine complexes of Cr, Mn, Ru, Fe, and/or Co within the pores of zeolitic supports for use as selective oxidation catalysts for methane and light hydrocarbons. During the second quarter of this project, we concentrated on methane reforming. Two ruthenium clusters (Ru{sub 4} and Ru{sub 6}) supported on three types of support materials ({beta}-alumina, 5 {Angstrom} molecular sieves, and {gamma}-zeolite) were tested for methane reforming. The effects of cluster size, supporting material, and reaction conditions were evaluated. The methane conversions range from 1.74 to 10.11% at 750{degrees}C. The reaction product contains hydrogen, C{sub 2} hydrocarbons, and C{sub 6} or higher hydrocarbons. Up to 48.34%more » yield of hydrocarbon (C{sub 2}+) is obtained based on reacted methane. Some of these catalysts show very good coking resistance compared with a commercial ruthenium catalyst. Addition of oxygen to these reactions significantly increases the percent methane conversion at lower reaction temperature. However, carbon dioxide and water are the major products in the presence of oxygen.« less

Authors:
;
Publication Date:
Research Org.:
SRI International, Menlo Park, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
83042
Report Number(s):
DOE/PC/90011-T2
ON: DE95014802
DOE Contract Number:  
AC22-86PC90011
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 21 May 1987
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 40 CHEMISTRY; 03 NATURAL GAS; METHANE; CONVERSION; CATALYSTS; CHEMICAL PREPARATION; PERFORMANCE TESTING; RUTHENIUM; CATALYTIC EFFECTS; REFORMER PROCESSES; ALUMINIUM OXIDES; ZEOLITES; MOLECULAR SIEVES; CATALYST SUPPORTS; PROGRESS REPORT; EXPERIMENTAL DATA

Citation Formats

Wilson, Jr, R B, and Chan, Yee Wai. Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 2, January 16, 1987--April 15, 1987. United States: N. p., 1987. Web. doi:10.2172/83042.
Wilson, Jr, R B, & Chan, Yee Wai. Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 2, January 16, 1987--April 15, 1987. United States. https://doi.org/10.2172/83042
Wilson, Jr, R B, and Chan, Yee Wai. 1987. "Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 2, January 16, 1987--April 15, 1987". United States. https://doi.org/10.2172/83042. https://www.osti.gov/servlets/purl/83042.
@article{osti_83042,
title = {Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 2, January 16, 1987--April 15, 1987},
author = {Wilson, Jr, R B and Chan, Yee Wai},
abstractNote = {The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that can, as economics dictate, be subsequently converted either to liquid fuels or value-added chemicals. In this program we are exploring two approaches to developing such catalysts. The first approach consists of developing advanced catalysts for reforming methane. We will prepare the catalysts by reacting organometallic complexes of transition metals (Fe, Ru, Rh, and Re) with zeolitic and rare-earth-exchanged zeolitic supports to produce surfaceconfined metal complexes in the zeolite pores. Our second approach entails synthesizing the porphyrin and phthalocyanine complexes of Cr, Mn, Ru, Fe, and/or Co within the pores of zeolitic supports for use as selective oxidation catalysts for methane and light hydrocarbons. During the second quarter of this project, we concentrated on methane reforming. Two ruthenium clusters (Ru{sub 4} and Ru{sub 6}) supported on three types of support materials ({beta}-alumina, 5 {Angstrom} molecular sieves, and {gamma}-zeolite) were tested for methane reforming. The effects of cluster size, supporting material, and reaction conditions were evaluated. The methane conversions range from 1.74 to 10.11% at 750{degrees}C. The reaction product contains hydrogen, C{sub 2} hydrocarbons, and C{sub 6} or higher hydrocarbons. Up to 48.34% yield of hydrocarbon (C{sub 2}+) is obtained based on reacted methane. Some of these catalysts show very good coking resistance compared with a commercial ruthenium catalyst. Addition of oxygen to these reactions significantly increases the percent methane conversion at lower reaction temperature. However, carbon dioxide and water are the major products in the presence of oxygen.},
doi = {10.2172/83042},
url = {https://www.osti.gov/biblio/83042}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu May 21 00:00:00 EDT 1987},
month = {Thu May 21 00:00:00 EDT 1987}
}