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Experimental and Numerical Investigation on erosion corrosion of the Air Cooler Tube Bundle in a Residue Hydrotreating Unit

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China Petroleum Processing & Petrochemical Technology 2022年第4期24卷 151-162页

作者： Jin Haozhe Yu Chenyang Gu Youjie Qian Guangwei Liu Xiaofei Ou Guofu Jia Yongna Institute of Flow-Induced corrosion Zhejiang Sci-Tech UniversityHangzhou 310018China Institute of Flow-Induced corrosion and Intelligent Prevention and Control Changzhou UniversityChangzhou 213164China Intelligent Interconnection Department Jiangsu Branch of China Academy of Machinery Science and Technology Group Co.Ltd.Changzhou 213164China

corrosion leakage occurred in the 14th tube bundle in the first row of a residual oil hydrotreating air cooler after operating for two years.The failure location was 0.5 m from the outlet header box.In this paper,the erosion corrosion of the air cooler tube bundle was investigated by experimental and numerical methods.Visual inspection,scanning electron microscopy(SEM),and X-ray diffraction(XRD)experiments were performed,and the failure morphology and material composition confirmed that the damage was caused by erosion corrosion.The shear stress transport k–ωturbulence model(SST-k–ω)was then used to investigate the flow and erosion corrosion characteristics,combined with mass transfer,corrosion rate,and ionization equilibrium models.The numerical simulation results revealed that the water phase volume fraction increased with flow and heat transfer in the fluid,which increased the mass flow rate and concentration of hydrogen sulfide.The mass transfer coefficient and corrosion rate were proposed as important parameters to characterize erosion corrosion.Moreover,the local concentration of wall shear stress was found to increase the risk of erosion corrosion.The predicted high-risk area was consistent with the actual failure area,which verified that this failure incident was attributable to erosion corrosion by the water phase.

关键词： erosion corrosion air cooler tube bundle(ACTB) residue thinning hydrogen sulfide

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Investigation of erosion corrosion Caused by Drinking Water in the Faucet with Computational Fluid Dynamics

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Journal of Metallic Material Research 2023年第1期6卷 1-6页

作者： Kadir Gok HDeniz Ada Mehmet Erdem Arif Gök KıvançTopçuoğlu MAli Alkan Department of Biomedical Engineering Engineering and Architecture Facultyİzmir Bakircay UniversityIzmir35000Turkey Chemical Technologies Kütahya Vocational School of Technical SciencesKütahya Dumlupinar UniversityKutahya43020Turkey Mechanical and Metal Technologies Kütahya Vocational School of Technical SciencesKütahya Dumlupinar UniversityKutahya43020Turkey Department of Industrial Design Architecture FacultyKütahya Dumlupinar UniversityKutahya43020Turkey Department of Construction Technology Ula Ali Koçman Vocational High SchoolMuğla UniversityMuğla48000Turkey Department of Electricity and Energy Ula Ali Koçman Vocational High SchoolMuğla UniversityMuğla48000Turkey

In this study,the reason for erosion-corrosion of drinking or mains water in the faucet was investigated by computational fluid dynamics.Pipes used in homes,the service sector,and industry are responsible for transporting different types of fluids from one place to another.Considering the faucet design,the SolidWorks program was used for 3D studies.In-faucet flow analyses were performed using Ansys Fluent,a computational fluid dynamics program based on the finite volume method.In the analyses,lime particles were chosen.At the end of the analysis,the amount of erosion in the faucet was obtained.

关键词： Faucet erosion corrosion CFD Simulation

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erosion corrosion and Protection of Recycle System with Seawater

Erosion Corrosion and Protection of Recycle System with Seaw...

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2016浙江省腐蚀与防护工程技术研讨会--汽车车辆及部...

作者： Jin Xue Kaijie Xue Jianshu Lu Zhejiang University of Technology Toronto University

In order to investigate the corrosion of recycle system with seawater in rights of power plant,the erosion behavior and mechanism of erosion corrosion in this system constructed with several corrosion-resistance alloys have been studied and tested in the condition of high speed fluid with a sand particles.Both special protection technologies and results,one designed by high temperature epoxy resin powder coating and another of the associating method of anode protection together with such same coating,have been discussed as well in this case.

关键词： erosion corrosion protection recycle system seawater

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