气相防腐剂在炼油厂备用设备防腐中的应用

Application of gas- phase corrosion inhibitor in standby equipment of FCC unit

介绍了某石化分公司炼油厂第二套催化装置设备在停备用过程中的腐蚀及保护情况、停备用设备气相防腐剂的物质组成及作用原理。通过在停备用设备中的实际应用,验证了停备用设备气相防腐剂在半年使用期内能够阻止设备进一步腐蚀,并对以前生成的陈旧锈层起到一定程度的剥离和去除作用,防腐效果达到预期要求。

The corrosion and protection of standby equipment in FCCU 2 in the refineR, of Dushanzi Petrochemical Company and the compositions and working mechanisms of corrosion inhibitors for the standby equipment are introduced. The advantages and disadvantages of several common anti - corrosion methods are compared. After application of gas - phase corrosion inhibitor in the standby equipment of FCCU 2 in Dushanzi Petrochemical Company, it has stopped the further corrosion development of standby equipment and spalled off the rust layer produced before corrosion inhibitor application. The test specimen inside the equipment is bright and new and there is now corrosion on it. There is no weight loss of specimen and the anticorrosion effect has met the expected requirements. The practical application of gas - phase corrosion inhibitor in the standby equipment in the FCCU 2 of Dushanzi Petrochemical Company has verified the good performance of the corrosion inhibitor.