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这篇文章叙述某些含环烷酸的委内瑞拉原油所引起的腐蚀.由环烷酸造成的腐蚀,通常发生在常压和减压蒸镏装置上.腐蚀因素,如酸度操作温度、流速、涡流等影响腐蚀强度.最受影响的区域是:炉管,转油线,塔的填料.泵的内件、阀门和有关零件.虽然,环烷酸可以从原油中除去或中和,我们还是采用在容易产生的腐蚀部位使用奥氏体不锈钢控制腐蚀的方法,如316不锈钢,在另一些部位采用5Cr-1/2Mo和9Cr-1Mo就可以得到合适的使用寿命.下面详细介绍有关我们在对待环烷酸腐蚀以及合金钢的选择,控制环烷酸含量的范围和操作条件等方面的经验.
This article describes the corrosion caused by certain naphthenic-containing Venezuelan crude oils. Corrosion caused by naphthenic acids usually occurs on atmospheric and vacuum distillation units. Corrosive factors such as acidity Operating temperature, flow rate, vortex Etc .. The most affected area is: furnace tube, turn the oil line, tower packing pump internal parts, valves and related parts.Although naphthenic acid can be removed from the crude oil or neutralization, we still use The use of austenitic stainless steel to control corrosion in easily eroded parts such as 316 stainless steel, and 5Cr-1 / 2Mo and 9Cr-1Mo in other parts can be the appropriate life. The following details about our treatment of the ring Alkanoic acid corrosion and the choice of alloy steel, control of naphthenic acid content of the scope and operating conditions of experience.