Monitoring of the Content of Imidazoline-Containing Corrosion Inhibitor

P. A. Zadorozhny; S. V. Sukhoverkhov; A. N. Markin; K. I. Savin; N. A. Prokuda

doi:https://doi.org/10.14773/cst.2017.16.4.161

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자료유형: 학술저널

저자정보: P. A. Zadorozhny (Institute of Chemistry Far Eastern Branch Russian Academy of Science Vladivostok Russia) S. V. Sukhoverkhov (Institute of Chemistry Far Eastern Branch Russian Academy of Science Vladivostok Russia) A. N. Markin (Institute of Chemistry Far Eastern Branch Russian Academy of Science Vladivostok Russia) K. I. Savin (Sakhalin Energy Investment Company Yuzhno-Sakhalinsk Russia) N. A. Prokuda (Institute of Chemistry Far Eastern Branch Russian Academy of Science Vladivostok Russia)

저널정보: 한국부식방식학회 Corrosion Science and Technology CORROSION SCIENCE AND TECHNOLOGY 제16권 제4호

발행연도: 2017.8

수록면: 161 - 166 (6page)

DOI: https://doi.org/10.14773/cst.2017.16.4.161

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The qualitative composition of active components of the corrosion inhibitor CGW-85567 was studied. It was found that С18:2 and С18:1 imidazolines and the corresponding imidazolin-amides are the major components. The HPLC/MS technique was developed for their determination in the water solutions of monoethylene glycol (MEG). Industrial application of the inhibitor showed that MEG solution retained high concentration of the inhibitor for a long time after ceasing its addition into pipelines. Low values of the partition coefficients (0.010-0.014) of imidazolines in the system “water solution of MEG (concentration of MEG 62-85% v/v) - gas condensate” have allowed to pass on from the technology of continuous pumping of the inhibitor into protected pipelines to the periodic dosing technology. Taking into account a long time of circulation in the system and high temperatures during MEG regeneration process possible degradation products of the inhibitor were studied. N, N-dimethyl-dodecanamine-1, and N, N-dimethyl-tetradecanamine-1 were identified as major degradation products of the corrosion inhibitor CGW-85567.

#corrosion inhibitor #imidazoline #HPLC/MS #tertiary amines #monoethylene glycol

참고문헌 (7)

참고문헌 신청

A. N. Markin / 2003 / Proc. VNIIOENG 2003 :188

R. Tyagi R / 2007 / J. Oleo Sci. 56:211

D. Bajpai / 2006 / J. Oleo Sci. 55:319

A. N. Markin / 2011 / Production chemistry: Guidance manual / Dalnauka :1~288

M. A. Gough / 1999 / Rapid Commun. Mass Sp. 13:227

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