Biomass Conversion Products as Steel Corrosion Inhibitors


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By-products formed in the conversion of vegetable biomass (multicomponent tar) were studied in comparison with the target products of the process (5-hydroxymethylfurfural, 2,5-diformylfuran) as inhibitors of corrosion of low-carbon steel in sulfuric acid at temperatures of 25-90°C. The gravimetric method was used to determine the inhibiting effect of additives. All these additives exhibit medium protective effects in an acid medium, with the degree of protection in 1 M sulfuric acid at room temperature exceeding 80%. The potentiody-namic polarization method was used to determine the influence exerted by the additives on partial reactions of the corrosion process. It was shown that the tar and 2,5-diformylfuran behave as additives of the cathodic type, and 5-hydroxymethylfurfural, as that of a mixed type. Temperature-kinetic calculations were used to determine the mechanism of action of the inhibitors. The corrosion process occurs in the presence of additives predominantly under the kinetic control.

Sobre autores

V. Mishurov

Don State Technical University

Autor responsável pela correspondência
Email: vimishurov@gmail.com
Rússia, Rostov-on-Don, 344002

E. Shubina

Don State Technical University

Email: vimishurov@gmail.com
Rússia, Rostov-on-Don, 344002

V. Klushin

Platov South-Russian State Polytechnic University (NPI)

Email: vimishurov@gmail.com
Rússia, Novocherkassk, Rostov-on-Don oblast, 346428

A. Chizhikova

Platov South-Russian State Polytechnic University (NPI)

Email: vimishurov@gmail.com
Rússia, Novocherkassk, Rostov-on-Don oblast, 346428

V. Kashparova

Platov South-Russian State Polytechnic University (NPI)

Email: vimishurov@gmail.com
Rússia, Novocherkassk, Rostov-on-Don oblast, 346428

A. Berezhnaya

Southern Federal University

Email: vimishurov@gmail.com
Rússia, Rostov-on-Don, 344006

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