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AssigneeAmerican Air Liquide, Inc.
InventorsFrederick W. Giacobbe, Eric L. Duchatean, Kevin P. McKean
Estimating the term…
Apparatus and process for removing carbon monoxide from a gas stream comprising a major portion of an inert gas and a minor portion of carbon monoxide are provided. The process involves contacting a feed gas stream with at least a primary metal oxide in a reaction zone of a reactor vessel at conditions effective to convert substantially all of the carbon monoxide to carbon dioxide, thus producing a purified gas stream consisting essentially of the inert gas and carbon dioxide and substantially free of carbon monoxide. This process has (inter alia) a particular application as a tertiary purification process for producing a more highly purified source of gaseous nitrogen from a source of nitrogen originally produced from a conventional membrane air separation system, wherein the oxygen concentration in the nitrogen stream my vary around a setpoint value, and then further (or secondarily) purified by converting excess oxygen in the nitrogen to carbon monoxide and carbon dioxide using a fuel gas/combustion process, wherein the carbon monoxide concentration varies due to varying oxygen concentration in the feed stream to the combustion process.
A process for removing carbon monoxide from a feed gas stream comprising a major portion of an inert gas and a minor portion of carbon monoxide, said process comprising contacting said feed gas stream with a metal oxide in a reaction zone of a reactor vessel at conditions effective to convert substantially all of said carbon monoxide to carbon dioxide and produce a purified gas stream comprising said inert gas and carbon dioxide and substantially no carbon monoxide.
A process for removing carbon monoxide from a feed gas stream comprising a major portion of nitrogen and a minor portion of carbon monoxide, said process comprising the steps of:
An apparatus for removing carbon monoxide from a gas stream comprising a major amount of an inert gas and a minor amount of carbon monoxide, the apparatus comprising a reactor vessel, a reactor vessel gas inlet and a reactor vessel gas outlet, the reactor vessel having an internal reaction zone space at least partially filled with a metal oxide, the metal oxide present in sufficient volume for contacting the gas stream with the metal oxide at conditions effective to convert substantially all of the carbon monoxide to carbon dioxide and thus produce a purified gas stream substantially free of carbon monoxide.
Dependencies are inferred from the claim text.