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发明公开
CN103866328A 炼油装置工艺设备停工防腐的方法 无效 - 驳回

炼油装置工艺设备停工防腐的方法
摘要：
本发明涉及一种炼油装置工艺设备停工防腐的方法，利用一种气相防腐剂挥发出来的气体，经过扩散后，达到设备的表面保护设备表面不受腐蚀；气相防腐剂按重量比由如下原料混合而成：乙胺：5～20％，碳酸氢铵：70-90％，硫脲：5-10％；本方法能在金属表面形成致密的保护膜，可以把腐蚀介质和金属表面隔开，从而达到防腐的目的，经工业试验表明，防腐效果明显，可以使装置工艺设备的缓蚀率达98％以上。
摘要（英）：

The invention relates to a method for the shutdown anticorrosion of the process unit of an oil refining apparatus. A gas volatilized from a gas phase antiseptic diffuses to the surface of the unit in order to prevent the corrosion of the surface of the unit; and the gas phase antiseptic is obtained by mixing 5-20wt% of ethylamine with 70-90wt% of ammonium bicarbonate and 5-10wt% of thiourea. The method enables a compact protection film to be formed on a metal surface to separate a corrosion medium from the metal surface in order to realize anticorrosion. Industrial test results show that the method has an obvious anticorrosion effect and enables the corrosion inhibition rate of the process unit of the apparatus to reach above 98%.

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