Open AccessCalculation of Electrochemical Corrosion Rate at Elbow of Supercritical CO2 Pipeline
Author(s) -
Bin Chen,
Qinghua Kang,
Rongbin Ju
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/772/1/012042
Subject(s) - supercritical fluid , corrosion , materials science , electrochemistry , metallurgy , volumetric flow rate , supersaturation , chemistry , electrode , thermodynamics , physics , organic chemistry
Based on the CCUS project planned to run in a domestic oil field, the electrochemical corrosion at the bend of supercritical CO 2 pipeline was studied by means of high-temperature and high-pressure reaction kettle hanging plate experiment, and the corrosion rate of X80 pipeline steel in unsaturated, saturated and supersaturated supercritical CO 2 with water content was obtained. Then through COMSOL simulation of the corrosion rate of 90° bent pipe in the supercritical CO 2 corrosion atmosphere, the maximum corrosion rate position of electrochemical corrosion generated under the action of flow accelerated corrosion (FAC) generated by supercritical CO 2 fluid in the bent pipe was obtained, and corresponding anticorrosion Suggestions were put forward according to the research results.