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Title: Fuel cell power supply with oxidant and fuel gas switching

Abstract

This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation.

Inventors:
 [1];  [2];  [3]
  1. Hamilton, MA
  2. Swampscott, MA
  3. Peabody, MA
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
866215
Patent Number(s):
4657829
Assignee:
United Technologies Corporation (Hartford, CT)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fuel; cell; power; supply; oxidant; gas; switching; relates; vehicular; plant; stack; supplied; hydrocarbon; methanol; catalytic; cracking; reactor; shift; water; electrolysis; subsystem; associated; operation; electrolyze; hydrogen; oxygen; products; stored; pressure; vessels; peak; intervals; viz; acceleration; start-up; pure; vessel; reaction; gases; cathodes; anodes; air; reformate; allows; sized; normal; capacity; times; catalytic cracking; reaction gases; fuel cell; pure oxygen; reaction gas; cell power; normal operation; fuel gas; cell stack; pressure vessel; power supply; power plant; peak power; power operation; pressure vessels; cracking reactor; gas switch; vehicular power; cell vehicular; /429/

Citation Formats

McElroy, James F, Chludzinski, Paul J, and Dantowitz, Philip. Fuel cell power supply with oxidant and fuel gas switching. United States: N. p., 1987. Web.
McElroy, James F, Chludzinski, Paul J, & Dantowitz, Philip. Fuel cell power supply with oxidant and fuel gas switching. United States.
McElroy, James F, Chludzinski, Paul J, and Dantowitz, Philip. Thu . "Fuel cell power supply with oxidant and fuel gas switching". United States. https://www.osti.gov/servlets/purl/866215.
@article{osti_866215,
title = {Fuel cell power supply with oxidant and fuel gas switching},
author = {McElroy, James F and Chludzinski, Paul J and Dantowitz, Philip},
abstractNote = {This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

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