Effect of small amount of H2S on the corrosion behavior of carbon steel in the dynamic supercritical CO2 environments
Effect of small amount of H2S on the corrosion behavior of carbon steel in the dynamic supercritical CO2 environments
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DOI：
10.1016/j.corsci.2015.11.009
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发表时间：
2016-02-01
影响因子：
8.3
通讯作者：
Gao, Kewei
中科院分区：
文献类型：
--
作者：
Wei, Liang;Pang, Xiaolu;Gao, Kewei
研究了微量H2S对碳钢在动态超临界CO2和水相中腐蚀的影响。H2S改变了H2O在钢表面的吸附能力，导致H2O在整个钢表面的吸附，加速了碳钢在超临界CO2相中的全面和局部腐蚀。少量H2S在水相中的作用更为显著，它改变了腐蚀产物膜的微观结构和组成，最终使碳钢的腐蚀类型由局部腐蚀转变为全面腐蚀。(C)2015爱思唯尔有限公司版权所有。
The effect of small amount of H2S on the corrosion of carbon steel in both dynamic supercritical CO2 and aqueous phase was investigated. H2S changed the adsorbability of H2O on the steel surface, causing the adsorption of H2O on the whole steel surface, which accelerated the general and localized corrosion of carbon steel in supercritical CO2 phase. The small amount of H2S presented more significant effect in the aqueous phase it changed the microstructure and compositions of the corrosion product scale, ultimately changed the dominated corrosion type of carbon steel from localized to general corrosion. (C) 2015 Elsevier Ltd. All rights reserved.