Inhibitors for acid gas conditioning solutions

Details Inhibitors for acid gas conditioning solutions Inhibitors for acid gas conditioning solutions

1982-07-21

1984-02-14

Gluck, Irwin

Compositions

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

106 1413, 106 1414, 106 1415, 106 1421, 106 1442, 106 1444, 252389R, 422 16, 422 19, 423228, 423229, C23F 1114, C23F 1116, C23F 1118

Patent

active

044315635

ABSTRACT:
The corrosion of ferrous metal surfaces in gas conditioning apparatus is inhibited by using a gas conditioning solution such as aqueous alkanolamines which contain thionitrogen compounds such as metal thiocyanates or thioamides. After recycling the gas conditioning solution for a few days, the solution dissolves sufficient amounts of nickel or cobalt or other metals in the equipment to act as a synergist with the thionitrogen compounds. In the event, the equipment does not contain any soluble synergistic metals, these metals may be added to the gas conditioning solution as soluble metal salts. Examples of useful additive metals are cobalt, nickel, calcium, copper, chromium, zinc, tin, aluminum, and magnesium.

REFERENCES:
patent: 3625888 (1971-12-01), Redmore et al.
patent: 3632519 (1972-01-01), Gustafson
patent: 4071470 (1978-01-01), Davidson et al.
patent: 4096085 (1978-06-01), Holoman et al.
patent: 4100100 (1978-07-01), Clouse et al.
patent: 4102804 (1978-07-01), Clouse et al.
patent: 4143119 (1979-03-01), Asperger
patent: 4330421 (1982-05-01), Braid

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