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Operating method of molten carbonate type fuel cell

Patent:

Abstract

Molten carbonate type fuel cell involves a problem of oxidation of anode while the unit is stopped. Although there is a method proposed wherein an inactive gas is supplied to anode during the stoppage, the market-available inactive gas contains a slight amount of oxygen which makes it difficult to prevent the deterioration of the anode. In this invention, at the start and the stop other than the normal operation, a protective gas mixture of an inactive gas with a small amount of hydrogen is supplied to the anode. The inactive gas is a commercial type nitrogen, argon or helium; hydrogen is mixed in amount 0.5 - 2.0% of the inactive gas. By this method, oxygen in air which comes in from the gas-sealed portion of the cell is reduced by hydrogen in the protective gas and is discharged in the form of water. 2 figs.
Publication Date:
Dec 06, 1988
Product Type:
Patent
Report Number:
JP 63-298974
Reference Number:
NEDO-88-960564; EDB-89-143796
Resource Relation:
Patent File Date: 28 May 1987
Subject:
30 DIRECT ENERGY CONVERSION; ANODES; OXIDATION; MOLTEN CARBONATE FUEL CELLS; OPERATION; ADDITIVES; DECOMPOSITION; GASES; HYDROGEN; INACTIVATION; STABILITY; CHEMICAL REACTIONS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELECTRODES; ELEMENTS; FLUIDS; FUEL CELLS; HIGH-TEMPERATURE FUEL CELLS; NONMETALS; 300502* - Fuel Cells- Performance & Testing
OSTI ID:
5675571
Country of Origin:
Japan
Language:
Japanese
Availability:
Available from Japan Patent Information Organization or International Patent Documentation Center
Submitting Site:
NEDO
Size:
Pages: (5 p)
Announcement Date:

Patent:

Citation Formats

Nakanishi, Tsuneo. Operating method of molten carbonate type fuel cell. Japan: N. p., 1988. Web.
Nakanishi, Tsuneo. Operating method of molten carbonate type fuel cell. Japan.
Nakanishi, Tsuneo. 1988. "Operating method of molten carbonate type fuel cell." Japan.
@misc{etde_5675571,
title = {Operating method of molten carbonate type fuel cell}
author = {Nakanishi, Tsuneo}
abstractNote = {Molten carbonate type fuel cell involves a problem of oxidation of anode while the unit is stopped. Although there is a method proposed wherein an inactive gas is supplied to anode during the stoppage, the market-available inactive gas contains a slight amount of oxygen which makes it difficult to prevent the deterioration of the anode. In this invention, at the start and the stop other than the normal operation, a protective gas mixture of an inactive gas with a small amount of hydrogen is supplied to the anode. The inactive gas is a commercial type nitrogen, argon or helium; hydrogen is mixed in amount 0.5 - 2.0% of the inactive gas. By this method, oxygen in air which comes in from the gas-sealed portion of the cell is reduced by hydrogen in the protective gas and is discharged in the form of water. 2 figs.}
place = {Japan}
year = {1988}
month = {Dec}
}