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Title: REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS

Abstract

Several different catalytic reactions must be carried out in order to convert hydrocarbons (or alcohols) into hydrogen for use as a fuel for polyelectrolyte membrane (PEM) fuel cells. Each reaction in the fuel-processing sequence has a different set of characteristics, which influences the type of catalyst support that should be used for that particular reaction. A wide range of supports are being evaluated for the various reactions in the fuel-processing scheme, including porous and non-porous particles, ceramic and metal straight-channel monoliths, and ceramic and metal monolithic foams. These different types of support have distinctly different transport characteristics. The best choice of support for a given reaction will depend on the design constraints for the system, e.g., allowable pressure drop, and on the characteristics of the reaction for which the catalyst is being designed. Three of the most important reaction characteristics are the intrinsic reaction rate, the exothermicity/endothermicity of the reaction, and the nature of the reaction network, e.g., whether more than one reaction takes place and, in the case of multiple reactions, the configuration of the network. Isotopic transient kinetic analysis was used to study the surface intermediates. The preferential oxidation of low concentrations of carbon monoxide in the presencemore » of high concentrations of hydrogen (PROX) is an important final step in most fuel processor designs. Data on the behavior of straight-channel monoliths and foam monolith supports will be presented to illustrate some of the factors involved in choosing a support for this reaction.« less

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
North Carolina State University (US)
Sponsoring Org.:
(US)
OSTI Identifier:
810450
DOE Contract Number:  
FG26-01NT41277
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 31 Dec 2002
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 30 DIRECT ENERGY CONVERSION; CARBON MONOXIDE; CATALYST SUPPORTS; CATALYSTS; CERAMICS; CONFIGURATION; FUEL CELLS; HYDROCARBONS; HYDROGEN; KINETICS; MEMBRANES; OXIDATION; PRESSURE DROP; REACTION KINETICS; TRANSIENTS

Citation Formats

Mr. Paul Chin, Dr. Xiaolei Sun, Professor George W. Roberts, Professor James J. Spivey, Mr. Amornmart Sirijarhuphan, Dr. James G. Goodwin, Jr., and Dr. Richard W. Rice. REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS. United States: N. p., 2002. Web. doi:10.2172/810450.
Mr. Paul Chin, Dr. Xiaolei Sun, Professor George W. Roberts, Professor James J. Spivey, Mr. Amornmart Sirijarhuphan, Dr. James G. Goodwin, Jr., & Dr. Richard W. Rice. REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS. United States. doi:10.2172/810450.
Mr. Paul Chin, Dr. Xiaolei Sun, Professor George W. Roberts, Professor James J. Spivey, Mr. Amornmart Sirijarhuphan, Dr. James G. Goodwin, Jr., and Dr. Richard W. Rice. Tue . "REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS". United States. doi:10.2172/810450. https://www.osti.gov/servlets/purl/810450.
@article{osti_810450,
title = {REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS},
author = {Mr. Paul Chin and Dr. Xiaolei Sun and Professor George W. Roberts and Professor James J. Spivey and Mr. Amornmart Sirijarhuphan and Dr. James G. Goodwin, Jr. and Dr. Richard W. Rice},
abstractNote = {Several different catalytic reactions must be carried out in order to convert hydrocarbons (or alcohols) into hydrogen for use as a fuel for polyelectrolyte membrane (PEM) fuel cells. Each reaction in the fuel-processing sequence has a different set of characteristics, which influences the type of catalyst support that should be used for that particular reaction. A wide range of supports are being evaluated for the various reactions in the fuel-processing scheme, including porous and non-porous particles, ceramic and metal straight-channel monoliths, and ceramic and metal monolithic foams. These different types of support have distinctly different transport characteristics. The best choice of support for a given reaction will depend on the design constraints for the system, e.g., allowable pressure drop, and on the characteristics of the reaction for which the catalyst is being designed. Three of the most important reaction characteristics are the intrinsic reaction rate, the exothermicity/endothermicity of the reaction, and the nature of the reaction network, e.g., whether more than one reaction takes place and, in the case of multiple reactions, the configuration of the network. Isotopic transient kinetic analysis was used to study the surface intermediates. The preferential oxidation of low concentrations of carbon monoxide in the presence of high concentrations of hydrogen (PROX) is an important final step in most fuel processor designs. Data on the behavior of straight-channel monoliths and foam monolith supports will be presented to illustrate some of the factors involved in choosing a support for this reaction.},
doi = {10.2172/810450},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 2002},
month = {Tue Dec 31 00:00:00 EST 2002}
}

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