Chemistry of inorganic compounds – Hydrogen or compound thereof – Elemental hydrogen
Reexamination Certificate
2006-01-10
2006-01-10
Silverman, Stanley S. (Department: 1754)
Chemistry of inorganic compounds
Hydrogen or compound thereof
Elemental hydrogen
C252S373000, C422S198000, C422S211000, C422S239000, C423S220000, C423S222000
Reexamination Certificate
active
06984372
ABSTRACT:
This invention relates to a sulfur tolerant, dynamic, compact, lightweight fuel process and system that is capable of converting sulfur bearing carbonaceous fuels to hydrogen rich gases suitable for fuel cells or chemical processing applications. The process and system is based on the AHR and WGS reactions, followed by cleanup of byproduct sulfur-containing gases and carbon oxides that would otherwise poison the fuel cell electrocatalyst. Advantageously, this is accomplished via an ASMS and a methanator or an AWMR. The process and system preferably uses a special sulfur tolerant catalysts and hardware designs that enable the conversion in an energy efficient manner while maintaining desirable performance characteristics such as rapid start-stop and fast response to load change capabilities.
REFERENCES:
patent: 4863707 (1989-09-01), McShea et al.
Camara Elias H.
Ho W. S. Winston
Kao Richard L.
Randhava Surjit
Medina Maribel
Silverman Stanley S.
Tolpin Thomas W.
Unitel Technologies, Inc.
University of Kentucky Research Foundation
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