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Abstract

A process for recovering hydrogen from a multi-component gas stream is provided. This process includes compressing said multi-component gas stream, thereby creating a compressed multi-component gas stream. This process includes heating the compressed multi-component gas stream, thereby creating a heated compressed multi-component gas stream. This process also includes introducing steam into the heated compressed multi-component gas stream, thereby creating a first feed stream. This process further includes introducing the first feed stream into a CO shift conversion process, thereby creating a first intermediate stream. This process also includes introducing the first intermediate stream into an amine wash process, thereby creating a second intermediate stream and a carbon dioxide stream. This process also includes introducing the second intermediate stream into a methanation process, thereby creating a third intermediate stream. This process also includes introducing the third intermediate stream into an adsorbent bed to remove moisture, thereby creating a fourth intermediate dry stream. This process also includes introducing the fourth intermediate stream into a cryogenic distillation process, thereby creating a hydrogen stream, a nitrogen stream, and a waste stream.

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First Claim