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Effect of inhibitors on the corrosion-mechanical behavior of steels in media containing hydrogen sulfide and simulating the effluents of the petroleum industry

Journal Article · · J. Appl. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6768694
The corrosion medium was a salt solution with a hydrocarbon base (benzine B-1) containing hydrogen sulfide in a 1:1 ratio; it was used to simulate the effluents of the petroleum industry. The concentrations of the ions were as follows, mg/1: Cl/sup -/, 780, SO/sub 4//sup 2 -/, 62, CO/sub 3//sup 2 -/, 84. The hydrogen sulfide concentration was 25 - 1000 mg/1, the flow rate was 1 m/s, and testing time ws 3 h. Various inhibitors were used. The dependence of the corrosion rate on the concentration of H/sub 2/S in mineralized H/sub 2/O was measured. The curve is characterized by a maximum, as the corrosion rate in the initial system increases sharply and then decreases. The corrosion rate is significantly lower in the presence of the inhibitors and remains minimal in the concentrations between 500 and 1000 mg/1. Corrosion-mechanical failure is prevented most effectively by inhibitors based upon the structure of imidazoles. 9 references, 4 figures, 2 tables.
Research Organization:
Moscow State Polytechnic Inst., USSR
OSTI ID:
6768694
Journal Information:
J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 56:8; ISSN JAPUA
Country of Publication:
United States
Language:
English