Flow cell apparatus for quantitative evaluation of carbon steel corrosion during transitions in fluid composition: Application to transition from inhibited hydrochloric acid to sodium chloride brine

被引：4

作者：

Barker, Richard ^{[1
]}

Pickles, Benjamin ^{[1
]}

Kapur, Nik ^{[1
]}

Hughes, Trevor ^{[2
]}

Barmatov, Evgeny ^{[2
]}

Neville, Anne ^{[1
]}

机构：

[1] Univ Leeds, Sch Mech Engn, Inst Funct Surfaces, Leeds LS2 9JT, W Yorkshire, England

[2] Schlumberger Cambridge Res Ltd, Madingley Rd, Cambridge CB3 OEL, England

来源：

CORROSION SCIENCE | 2018年 / 138卷

基金：

英国工程与自然科学研究理事会;

关键词：

Acid solutions (A); Carbon steel (A); Electrochemical calculation (B); Weight loss (B); Acid corrosion inhibitor (C); DISSOLUTION; MODEL;

D O I：

10.1016/j.corsci.2018.04.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper introduces a new flow cell technique that offers the advantage of real-time corrosion rate behaviour acquired as transitions in fluid chemistry occur using in situ electrochemistry. The present study quantifies the corrosion behaviour of a metal surface initially exposed to inhibited acid and subsequently exposed to a model formation brine. The design, optimisation and validation of the flow cell set-up is discussed. Results from initial tests show that inhibition efficiency and steel corrosion rate change significantly during the dilution process as the inhibitor film experiences concomitant changes in the "external" concentrations of acid and propargyl alcohol inhibitor.

引用

页码：116 / 129

页数：14

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