首页|Investigation of corrosion sequence in the overhead pipeline of H2S stripper column through CFD models

Investigation of corrosion sequence in the overhead pipeline of H2S stripper column through CFD models

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  • NSTL
  • Elsevier
? 2022The corrosion mechanism of the overhead pipeline of the H2S stripper tower was studied by macro examination, metallography, SEM and EDS analysis. The primary reason for the corrosion is the unsuitable material selected for the inhibitor injection pipe. In a H2S + HCl + NH3 + H2O environment, first dew point corrosion occurs. Then oil and gas erosion corrosion causes the injection tube to perforate and break, which directly alters the flow pattern and temperature in the overhead pipeline. Eventually, the tube is broken by erosion and acid corrosion. A computational fluid dynamic tool has been used for the simulation of the multiple phases inside the corroded pipe. The numerical simulation proves our conclusion of the development of corrosion in multiple locations.

CFD modellingFailure analysisH2S corrosionH2S stripper overhead corrosion

Liu W.、Lyu Y.、Duan Z.、Li W.、Yu W.

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College of Mechanical and Electrical Engineering Guangdong University of Petrochemical Technology

Guangdong Provincial Key Laboratory of Petrochemical Equipment Fault Diagnosis Guangdong University of Petrochemical Technology

Chemical and Materials Engineering Department University of Auckland

2022

10.1016/j.engfailanal.2022.106187

Engineering failure analysis

Engineering failure analysis

EISCI
ISSN：1350-6307
年,卷(期)：2022.136
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