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Title: Method of controlling injection of oxygen into hydrogen-rich fuel cell feed stream

Abstract

A method of operating a H.sub.2 --O.sub.2 fuel cell fueled by hydrogen-rich fuel stream containing CO. The CO content is reduced to acceptable levels by injecting oxygen into the fuel gas stream. The amount of oxygen injected is controlled in relation to the CO content of the fuel gas, by a control strategy that involves (a) determining the CO content of the fuel stream at a first injection rate, (b) increasing the O.sub.2 injection rate, (c) determining the CO content of the stream at the higher injection rate, (d) further increasing the O.sub.2 injection rate if the second measured CO content is lower than the first measured CO content or reducing the O.sub.2 injection rate if the second measured CO content is greater than the first measured CO content, and (e) repeating steps a-d as needed to optimize CO consumption and minimize H.sub.2 consumption.

Inventors:
 [1];  [1];  [2]
  1. (Pittsford, NY)
  2. (Los Alamos, NM)
Publication Date:
Research Org.:
GENERAL MOTORS CORP
OSTI Identifier:
873883
Patent Number(s):
US 6265092
Assignee:
General Motors Corporation (Detroit, MI) OSTI
DOE Contract Number:  
AC02-90CH10435
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; controlling; injection; oxygen; hydrogen-rich; fuel; cell; feed; stream; operating; -o; fueled; containing; content; reduced; acceptable; levels; injecting; gas; amount; injected; controlled; relation; control; strategy; involves; determining; rate; increasing; measured; reducing; repeating; steps; a-d; optimize; consumption; minimize; injection rate; fuel cell; acceptable levels; fuel stream; fuel gas; gas stream; feed stream; stream containing; control strategy; repeating step; hydrogen-rich fuel; cell feed; cell fuel; acceptable level; /429/204/

Citation Formats

Meltser, Mark Alexander, Gutowski, Stanley, and Weisbrod, Kirk. Method of controlling injection of oxygen into hydrogen-rich fuel cell feed stream. United States: N. p., 2001. Web.
Meltser, Mark Alexander, Gutowski, Stanley, & Weisbrod, Kirk. Method of controlling injection of oxygen into hydrogen-rich fuel cell feed stream. United States.
Meltser, Mark Alexander, Gutowski, Stanley, and Weisbrod, Kirk. Mon . "Method of controlling injection of oxygen into hydrogen-rich fuel cell feed stream". United States. doi:. https://www.osti.gov/servlets/purl/873883.
@article{osti_873883,
title = {Method of controlling injection of oxygen into hydrogen-rich fuel cell feed stream},
author = {Meltser, Mark Alexander and Gutowski, Stanley and Weisbrod, Kirk},
abstractNote = {A method of operating a H.sub.2 --O.sub.2 fuel cell fueled by hydrogen-rich fuel stream containing CO. The CO content is reduced to acceptable levels by injecting oxygen into the fuel gas stream. The amount of oxygen injected is controlled in relation to the CO content of the fuel gas, by a control strategy that involves (a) determining the CO content of the fuel stream at a first injection rate, (b) increasing the O.sub.2 injection rate, (c) determining the CO content of the stream at the higher injection rate, (d) further increasing the O.sub.2 injection rate if the second measured CO content is lower than the first measured CO content or reducing the O.sub.2 injection rate if the second measured CO content is greater than the first measured CO content, and (e) repeating steps a-d as needed to optimize CO consumption and minimize H.sub.2 consumption.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}

Patent:

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