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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馏装置上。(腐蚀因素,如操作温度、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和中和,我们还是采用在容易产生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操作条件等方面的经验。
This article describes the corrosion caused by certain naphthenic-containing Venezuelan crude oil. Corrosion caused by naphthenic acid usually occurs on atmospheric and vacuum distillation units. (Corrosion factors, such as operating temperature, flow rate, eddy current affect corrosion intensity). The most affected areas are: furnace tubes, transfer lines, tower packing, pump inserts, valves and related parts. Although naphthenic acid can be removed and neutralized from crude oil, we use a method that uses austenitic stainless steels to control corrosion such as 316 stainless steel where corrosion easily occurs and 5Cr-1 / 2Mo and 9Cr-1Mo at other locations You can get the appropriate life. The following is a detailed account of our experience with naphthenic acid corrosion and the selection of alloy steels, the range of operating conditions for controlling naphthenic acid content, and more.