Effect of formic acid (HCOOH) on the corrosion protectiveness of magnetite (Fe3O4) at elevated temperature

被引：4
作者：
Eslami, Maryam [1 ,3 ]
Choi, Yoon-Seok [1 ]
Nesic, Srdjan [1 ]
Breining, Robert [2 ]
机构：
[1] Ohio Univ, Inst Corros & Multiphase Technol, Dept Chem & Biomol Engn, Athens, OH 45701 USA
[2] Air Liquide Global E&C Solut Germany GmbH, D-60439 Frankfurt Am Main, Germany
[3] Univ Illinois, Appl Res Inst, Grainger Coll Engn, Champaign, IL 61820 USA
来源：
CORROSION SCIENCE | 2024年 / 229卷
关键词：
Sweet corrosion; Sour corrosion; High temperature corrosion; Formic acid; Corrosion product; Magnetite; AQUEOUS H2S CORROSION; CO2; CORROSION; MILD-STEEL; STAINLESS-STEELS; IRON SULFIDE; CARBON-STEEL; BEHAVIOR; ENVIRONMENTS; FECO3; FILMS;
D O I：
10.1016/j.corsci.2024.111868
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion behavior of carbon steel in an aqueous solution containing dissolved CO2, H2S, and HCOOH at high temperature was investigated by conducting a series of systematic experiments. The influence of each (possible) corrosive species (CO2, H2S, and HCOOH) on corrosion mechanisms were explored through detailed analysis of corrosion rates and corrosion product layers. The results showed that the formation and integrity of the Fe3O4 layer was compromised in the presence of HCOOH, probably due to the formation of Fe(COOH)+ which impedes the formation of Fe3O4 at the initial stage of the corrosion process.
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页数：10
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