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US 4,364,915 AGranted
Process for recovery of carbon dioxide from flue gas
AssigneeProcon International Inc.
InventorRussell C. Proctor
Life of this patent
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AssigneeProcon International Inc.
InventorRussell C. Proctor
Estimating the term…
A process for the recovery of carbon dioxide from a flue gas stream containing residual oxygen is disclosed. A combustible fuel, such as methane, is admixed with the flue gas stream and the flue gas stream is then passed into a combustion zone in which it may be contacted with a catalyst which promotes the consumption of the residual oxygen in a combustion reaction. Preferably, the heat liberated in the combustion reaction is recovered for use in heating flue gas to combustion supporting conditions and in downstream carbon dioxide recovery steps. The purpose of the combustion reaction is to lower the oxygen content of the flue gas stream, which is then contacted with a lean carbon dioxide absorbing amine solution. The low oxygen content reduces the degradation of the amine solution and the corrosiveness of the amine solution thus allowing the use of high strength amine solutions and very high absorbent liquid loadings.
A process for recovering carbon dioxide from a flue gas stream which comprises the steps of:
A process for recovering carbon dioxide from a flue gas stream which comprises the steps of:
The process of claim 20 further characterized in that the combustible fuel comprises carbon monoxide.
A process for recovering carbon dioxide from a flue gas stream which comprises the step of:
Dependencies are inferred from the claim text.