PSA tail gas preheating
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United States of America Patent
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May 29, 2012
Grant Date -
May 5, 2011
app pub date -
Nov 5, 2009
filing date -
Nov 5, 2009
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Abstract
A process for improving the thermodynamic efficiency of a hydrogen generation system is provided. This includes producing a syngas stream in a reformer, wherein the reformer has a combustion zone. This also includes introducing a syngas stream into a pressure swing adsorption unit, thereby producing a product hydrogen stream and a tail gas stream. This also includes heating the tail gas stream by indirect heat exchange with a heat source, thereby producing a heated tail gas stream; and introducing the heated tail gas stream into the combustion zone.
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