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Title: Sulfur tolerant molten carbonate fuel cell anode and process

Abstract

This patent describes an improvement in a process for production of electricity in a molten alkali metal carbonates fuel cell using a fuel gas mixture obtained by gasification of naturally occurring carbonaceous material. It comprises: passing the fuel gas mixture comprising about 10 to about 35 volume percent CO and about 1 ppm to about 10 ppm H{sub 2}S on a volume basis through a porous anode comprising about 0.5 to about 20 weight percent of a sulfur tolerant water-gas-shift catalyst selected from the group consisting of Cr{sub 2}O{sub 3}, FeO, Fe{sub 2}O{sub 3}, Fe{sub 3}O{sub 4}, Al{sub 2}O{sub 3}, LiAlO{sub 2}, LiCrO{sub 2}, MoO{sub 2}, MoO{sub 3}, WO{sub 3}, and mixtures thereof and the remainder being substantially a metal selected from the group consisting of nickel, cobalt, and mixtures thereof whereby over about 25 volume percent of the water-gas-shift equilibrium conversion of CO to H{sub 2} obtained with no H{sub 2}S present is maintained in the presence of the H{sub 2}S.

Inventors:
; ;
Publication Date:
OSTI Identifier:
6735664
Patent Number(s):
US 4925745; A
Application Number:
PPN: US 6-717447A
Assignee:
Inst. of Gas Technology, Chicago, IL (USA)
Resource Type:
Patent
Resource Relation:
Patent File Date: 29 Mar 1985
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; MOLTEN CARBONATE FUEL CELLS; DESIGN; CATALYSTS; ELECTROCHEMISTRY; FUEL GAS; GASIFICATION; OXIDES; CHALCOGENIDES; CHEMISTRY; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FLUIDS; FUEL CELLS; FUELS; GAS FUELS; GASES; HIGH-TEMPERATURE FUEL CELLS; OXYGEN COMPOUNDS; THERMOCHEMICAL PROCESSES; 300503* - Fuel Cells- Materials, Components, & Auxiliaries

Citation Formats

Remick, R J, Marianowski, L G, and Camara, E H. Sulfur tolerant molten carbonate fuel cell anode and process. United States: N. p., 1990. Web.
Remick, R J, Marianowski, L G, & Camara, E H. Sulfur tolerant molten carbonate fuel cell anode and process. United States.
Remick, R J, Marianowski, L G, and Camara, E H. Tue . "Sulfur tolerant molten carbonate fuel cell anode and process". United States.
@article{osti_6735664,
title = {Sulfur tolerant molten carbonate fuel cell anode and process},
author = {Remick, R J and Marianowski, L G and Camara, E H},
abstractNote = {This patent describes an improvement in a process for production of electricity in a molten alkali metal carbonates fuel cell using a fuel gas mixture obtained by gasification of naturally occurring carbonaceous material. It comprises: passing the fuel gas mixture comprising about 10 to about 35 volume percent CO and about 1 ppm to about 10 ppm H{sub 2}S on a volume basis through a porous anode comprising about 0.5 to about 20 weight percent of a sulfur tolerant water-gas-shift catalyst selected from the group consisting of Cr{sub 2}O{sub 3}, FeO, Fe{sub 2}O{sub 3}, Fe{sub 3}O{sub 4}, Al{sub 2}O{sub 3}, LiAlO{sub 2}, LiCrO{sub 2}, MoO{sub 2}, MoO{sub 3}, WO{sub 3}, and mixtures thereof and the remainder being substantially a metal selected from the group consisting of nickel, cobalt, and mixtures thereof whereby over about 25 volume percent of the water-gas-shift equilibrium conversion of CO to H{sub 2} obtained with no H{sub 2}S present is maintained in the presence of the H{sub 2}S.},
doi = {},
url = {https://www.osti.gov/biblio/6735664}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {5}
}