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Title: Integral reactor system and method for fuel cells

Abstract

A reactor system is integrated internally within an anode-side cavity of a fuel cell. The reactor system is configured to convert hydrocarbons to smaller species while mitigating the lower production of solid carbon. The reactor system may incorporate one or more of a pre-reforming section, an anode exhaust gas recirculation device, and a reforming section.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Acumentrics Corporation, Westwood, MA, USA
Sponsoring Org.:
USDOE
OSTI Identifier:
1108943
Patent Number(s):
8,586,252
Application Number:
12/949,248
Assignee:
Acumentrics Corporation (Westwood, MA) NETL
DOE Contract Number:
FC36-03NT41838
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Fernandes, Neil Edward, Brown, Michael S, Cheekatamarla, Praveen, Deng, Thomas, Dimitrakopoulos, James, and Litka, Anthony F. Integral reactor system and method for fuel cells. United States: N. p., 2013. Web.
Fernandes, Neil Edward, Brown, Michael S, Cheekatamarla, Praveen, Deng, Thomas, Dimitrakopoulos, James, & Litka, Anthony F. Integral reactor system and method for fuel cells. United States.
Fernandes, Neil Edward, Brown, Michael S, Cheekatamarla, Praveen, Deng, Thomas, Dimitrakopoulos, James, and Litka, Anthony F. 2013. "Integral reactor system and method for fuel cells". United States. doi:. https://www.osti.gov/servlets/purl/1108943.
@article{osti_1108943,
title = {Integral reactor system and method for fuel cells},
author = {Fernandes, Neil Edward and Brown, Michael S and Cheekatamarla, Praveen and Deng, Thomas and Dimitrakopoulos, James and Litka, Anthony F},
abstractNote = {A reactor system is integrated internally within an anode-side cavity of a fuel cell. The reactor system is configured to convert hydrocarbons to smaller species while mitigating the lower production of solid carbon. The reactor system may incorporate one or more of a pre-reforming section, an anode exhaust gas recirculation device, and a reforming section.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2013,
month =
}

Patent:

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  • A reactor system is integrated internally within an anode-side cavity of a fuel cell. The reactor system is configured to convert higher hydrocarbons to smaller species while mitigating the lower production of solid carbon. The reactor system may incorporate one or more of a pre-reforming section, an anode exhaust gas recirculation device, and a reforming section.
  • A phosphoric acid fuel cell having integral edge seals formed by an elastomer permeating an outer peripheral band contiguous with the outer peripheral edges of the cathode and anode assemblies and the matrix to form an integral edge seal which is reliable, easy to manufacture and has creep characteristics similar to the anode, cathode and matrix assemblies inboard of the seals to assure good electrical contact throughout the life of the fuel cell.
  • This patent describes an integral edge seal for a phosphoric acid fuel cell. It comprises an anode assembly, a matrix assembly and a cathode assembly disposed between a pair of conductive plates which have grooves for supplying fuel gas and oxygen to the anode and cathode assemblies wherein an electrolyte diffuses through a portion of the anode, matrix and cathode assemblies, the integral edge seal comprising an elastomer disposed to generally permeate a band encircling the anode, cathode and matrix assemblies and generally contiguous with the peripheral edges thereof to prevent gases and electrolyte from entering the peripheral edge bandsmore » of the anode and cathode assemblies and to allow the peripheral edge bands to be compressed to form a reliable seal which is easy to fabricate and to provide creep characteristics in the elastomer permeated peripheral edge bands which approach the creep characteristics of portions of the anode and cathode assemblies inboard of the peripheral edge bands to maintain good electrical contact between the conductive plates, the anode assemblies, the matrix assemblies and the cathode assemblies over the life of the fuel cell.« less
  • A self-supporting, elongated electrode is describes, comprising an electronically conductive electrode structure having an inner wall and an outer wall and having an open end and a closed end, where the inner wall defines a conduit through the length of the electrode structure, where the area between the walls contains additional conduits through the length of the electrode structure, and where all of the conduits communicate with each other near the closed end of the electrode structure.
  • A porous gas distribution plate assembly for a fuel cell, such as a bipolar assembly, includes an inner impervious region wherein the bipolar assembly has good surface porosity but no through-plane porosity and wherein electrical conductivity through the impervious region is maintained. A hot-pressing process for forming the bipolar assembly includes placing a layer of thermoplastic sealant material between a pair of porous, electrically conductive plates, applying pressure to the assembly at elevated temperature, and allowing the assembly to cool before removing the pressure whereby the layer of sealant material is melted and diffused into the porous plates to formmore » an impervious bond along a common interface between the plates holding the porous plates together. The distribution of sealant within the pores along the surface of the plates provides an effective barrier at their common interface against through-plane transmission of gas.« less