Stack shutdown purge method

A method of purging residual hydrogen from a fuel cell stack is disclosed. The method includes providing an air stream, providing a temporary nitrogen stream by removing oxygen from the air stream with an adsorbent bed and passing the nitrogen stream through the fuel cell stack.

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Bibliographic Details
Main Authors VOECKS GERALD E, GITTLEMAN CRAIG S, SALVADOR JOHN P
Format Patent
LanguageEnglish
Published 21.05.2013
Subjects
BASIC ELECTRIC ELEMENTS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION
ELECTRICITY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:A method of purging residual hydrogen from a fuel cell stack is disclosed. The method includes providing an air stream, providing a temporary nitrogen stream by removing oxygen from the air stream with an adsorbent bed and passing the nitrogen stream through the fuel cell stack.
Bibliography:Application Number: US20060534272