Canadian Energy Services L.p.

Hossein Jozani

Jeffrey Soderberg

David Horton

A method and composition is described for reducing the levels of hydrogen sulfide in a fluid such as a hydrocarbon stream. The method involves contacting the gas stream with a composition comprising a mixture of amines reacted with formaldehyde. The composition reduces the formation and deposition of solids commonly associated with spent triazine scavengers.

Amelioration of solids formation in spent hydrogen sulfide scavengers

While some triazines have low reactivity, a method and composition is described for improving their reactivity. The HS scavenging composition and method utilizes a tertiary amine to catalyze the scavengers with slower kinetics to achieve improved results over traditional systems with the scavenger alone. A hydrogen sulfide scavenging composition comprises: a tertiary amine as a catalyst in at least one of (i) a triazine scavenger selected from the group consisting of: methyl amine, C2-C5 alkyl amine, dimethylaminopropylamine, isopropanolamine, aniline, cyclohexylamine, isobutanolamine and methoxypropylamine triazines/bisoxazolidines; or (ii) an aldehyde-based scavenger such as glyoxal.

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CALGARY, Canada

Hossein Jozani