Process for the production of hydrogen with intermediate-pressure purging
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United States of America Patent
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Jul 22, 2014
Grant Date -
Jan 26, 2012
app pub date -
Jul 21, 2011
filing date -
Jul 23, 2010
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Abstract
This invention relates to a process for the production of hydrogen from a hydrocarbon feedstock and water vapor comprising:
- A stage for the production of a synthetic gas in a vapor reforming unit of the hydrocarbon feedstock in the presence of water vapor, with a fuel that provides the heat that is necessary to the reaction,A stage for conversion to vapor of the synthetic gas that is obtained in the preceding stage producing a hydrogen stream that contains methane and carbon dioxide,A stage for recovering carbon dioxide that is present in the stream that is obtained in the stage for conversion to vapor, making it possible to separate the carbon dioxide from the hydrogen stream,A stage for recovery and recycling to the vapor reforming stage of impurities that are present in the hydrogen stream, comprising a decompression phase.
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