Vanadium-cobalt corrosion inhibitor system for sour gas conditio

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

1981-03-12

1983-02-01

Gluck, Irwin

Compositions

Co, s, negative element, or acid, bindant containing

252190, 252192, 252387, 252389R, 422 12, 422 16, 423228, 423229, B01D 4702, B01D 5334, C23F 1114, C23F 1118

Patent

active

043714501

ABSTRACT:
The corrosion of iron and steel surfaces by an aqueous alkanolamine conditioning solution used to remove CO.sub.2 from a gas stream is effectively inhibited by a combination of a vanadium containing ion and a soluble cobalt salt. This system allows the use of higher amine concentrations which in turn allows a higher carbon dioxide loading with low corrosion thereby improving the energy efficiency of the gas sweetening process.

REFERENCES:
patent: 3372981 (1968-03-01), Ravner et al.
patent: 3808140 (1974-04-01), Mago et al.
patent: 3896044 (1975-07-01), Mago et al.
patent: 3959170 (1976-05-01), Mago et al.
patent: 4100100 (1978-07-01), Clouse

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