Numerical simulation study on anti-corrosion coating of Claus process

被引：0
|
作者：
Zhang L. [1 ]
Huang S. [2 ]
Liu S. [2 ]
Zhou Q. [2 ]
Pei A. [1 ]
Li N. [2 ]
机构：
[1] Sinopec Zhongyuan Oilfield Institute of Petroleum Engineering, Henan, Puyang
[2] State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Shaanxi, Xi’an
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / S2期
关键词：
anticorrosive coatin; Claus process; corrosion; discrete ordinate method; interface; surface;
D O I：
10.16085/j.issn.1000-6613.2021-1180
中图分类号：
学科分类号：
摘要：
The high concentration of hydrogen sulfide in fuel and flue gas and liquid droplets have serious corrosion and erosion effects on the combustion equipment in Claus process, which is easy to cause large-scale production safety accidents. The erosion of the droplet results in fine cracks on the wall surface of the metal heating surface, which is also the starting point of chemical corrosion. Coating can prevent chemical corrosion, this article through the establishment of mathematical model accurately describes the claus sulfur recovery process of droplet impact anti-corrosion coating process, using the discrete iteration method to solve the whole calculation domain, got hit in the process of internal anti-corrosion coating, coating and solid bonding surface and the stress distribution within the solid, confirmed the coating solution can solve the heating surface of metal droplet in the claus sulfur recovery process of erosion problems. At the same time, the effect of different thickness of coating on stress distribution was studied, and it was suggested that 20μm thickness of Si3 N4 coating was an economical and efficient wall protection measure. © 2021, Materials China. All rights reserved.
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页码：327 / 333
页数：6
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