Vanadium-cobalt corrosion inhibitor system for sour gas...

Details Vanadium-cobalt corrosion inhibitor system for sour gas... Vanadium-cobalt corrosion inhibitor system for sour gas...

B - Operations, Transporting

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B01D 47/02 (2006.01) B01D 53/14 (2006.01) C23F 11/14 (2006.01) C23F 11/18 (2006.01)

Patent

CA 1187064

VANADIUM-AMINE CORROSION INHIBITOR SYSTEM FOR SOUR GAS CONDITIONING SOLUTIONS ABSTRACT The corrosion of iron and steel surfaces by an aqueous alkanolamine conditioning solution used to remove CO2 from a gas stream is effectively inhibited by a combination of (a) a vanadium containing ion and (b) a cobalt salt or a diamine or triamine. A surprising fact is that some of the amine co-inhibitors have been identified by others in the art as promoting ferrous metal corrosion.

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