Production of carbon monoxide
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United States of America Patent
Stats
-
Jul 15, 2003
Grant Date -
Aug 8, 2002
app pub date -
Feb 2, 2001
filing date -
Feb 2, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process is provided which includes the steps of providing a CO-SER unit, feeding a feed gas of an equimolar mix of CO.sub.2 and H.sub.2 with a slight excess of CO.sub.2 to the CO-SER unit to produce a CO-SER product gas of CO, a small amount of CO.sub.2, and substantially no H.sub.2 at high pressure, providing a TSA unit having a plurality of adsorber vessels, each adsorber vessel having an adsorbent capable of selectively adsorbing CO.sub.2, the adsorber vessel being at high pressure and ambient temperature, and feeding the CO-SER product gas to one of the adsorber vessels in the TSA unit to selectively remove CO.sub.2 gas to produce a TSA product gas that is of high purity and of high pressure. The feeding continues to the one adsorber vessel until a point prior to CO.sub.2 breakthrough occurring. The process further includes regenerating any adsorber vessels having adsorbent that is substantially spent.
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