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Title: System for adding sulfur to a fuel cell stack system for improved fuel cell stability

Abstract

A system for adding sulfur to a fuel cell stack, having a reformer adapted to reform a hydrocarbon fuel stream containing sulfur contaminants, thereby providing a reformate stream having sulfur; a sulfur trap fluidly coupled downstream of the reformer for removing sulfur from the reformate stream, thereby providing a desulfurized reformate stream; and a metering device in fluid communication with the reformate stream upstream of the sulfur trap and with the desulfurized reformate stream downstream of the sulfur trap. The metering device is adapted to bypass a portion of the reformate stream to mix with the desulfurized reformate stream, thereby producing a conditioned reformate stream having a predetermined sulfur concentration that gives an acceptable balance of minimal drop in initial power with the desired maximum stability of operation over prolonged periods for the fuel cell stack.

Inventors:
 [1];  [2];  [3]
  1. Pittsford, NY
  2. (Fairport, NY)
  3. West Henrietta, NY
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1039892
Patent Number(s):
8129054
Application Number:
13/074,589
Assignee:
Delphi Technologies, Inc. (Troy, MI)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
FC26-02NT41246
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Mukerjee, Subhasish, Haltiner, Jr., Karl J, and Weissman, Jeffrey G. System for adding sulfur to a fuel cell stack system for improved fuel cell stability. United States: N. p., 2012. Web.
Mukerjee, Subhasish, Haltiner, Jr., Karl J, & Weissman, Jeffrey G. System for adding sulfur to a fuel cell stack system for improved fuel cell stability. United States.
Mukerjee, Subhasish, Haltiner, Jr., Karl J, and Weissman, Jeffrey G. Tue . "System for adding sulfur to a fuel cell stack system for improved fuel cell stability". United States. https://www.osti.gov/servlets/purl/1039892.
@article{osti_1039892,
title = {System for adding sulfur to a fuel cell stack system for improved fuel cell stability},
author = {Mukerjee, Subhasish and Haltiner, Jr., Karl J and Weissman, Jeffrey G},
abstractNote = {A system for adding sulfur to a fuel cell stack, having a reformer adapted to reform a hydrocarbon fuel stream containing sulfur contaminants, thereby providing a reformate stream having sulfur; a sulfur trap fluidly coupled downstream of the reformer for removing sulfur from the reformate stream, thereby providing a desulfurized reformate stream; and a metering device in fluid communication with the reformate stream upstream of the sulfur trap and with the desulfurized reformate stream downstream of the sulfur trap. The metering device is adapted to bypass a portion of the reformate stream to mix with the desulfurized reformate stream, thereby producing a conditioned reformate stream having a predetermined sulfur concentration that gives an acceptable balance of minimal drop in initial power with the desired maximum stability of operation over prolonged periods for the fuel cell stack.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {3}
}

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Works referenced in this record:

Thermodynamics and Kinetics of the Interaction of Carbon and Sulfur with Solid Oxide fuel Cell Anodes
journal, April 2009