Dual stream system and method for producing carbon dioxide

摘要

A system for producing carbon dioxide from a process gas that includes a hydrocarbon, the system including a combustion subsystem configured to combust the hydrocarbon and output a combustion effluent, wherein the combustion effluent includes carbon dioxide and water, a first separation subsystem configured to separate a first quantity of carbon dioxide from the combustion effluent, and a second separation subsystem configured to separate a second quantity of carbon dioxide from the combustion effluent.

主权项

1. A system for producing carbon dioxide from a process gas, said process gas comprising a hydrocarbon, said system comprising:
a combustion subsystem configured to combust said hydrocarbon and output a combustion effluent, wherein said combustion effluent comprises carbon dioxide and water; a first separation subsystem employing physisorption to separate a first quantity of said carbon dioxide from said combustion effluent; and a second separation subsystem in series with said first separation subsystem and downstream of said first separation subsystem, said second separation subsystem employing chemisorption to separate a second quantity of said carbon dioxide from said combustion effluent.