元素硫在催化裂化中的产生及影响因素  

Affecting Factors and Production of Element Sulphur in FCC

作　　者：郭佳红[1] 涂怡然[1] 赵勇[1] 

机构地区：[1]中国石油化工股份有限公司武汉分公司技术处,武汉430082

出　　处：《石化技术》2004年第4期12-14,共3页Petrochemical Industry Technology

摘　　要：通过酸、碱、水洗试验,汞滴试验,碘化钾氧化试验,证明中国石油化工股份有限公司武汉分公司联合装置汽油铜片腐蚀是由元素硫和性质类似元素硫的多硫化物引起的;为减少腐蚀,必须使来自主塔塔顶接受罐、高压接受罐的洗涤水冷凝液pH值为8.0-9.0,且洗涤用水采用脱氧水、碱度调节之前的锅炉给水或蒸汽冷凝水。The results of acid cleaning, alkali cleaning, water cleaning, mercury drip test and oxidizing experiment of KI show that the copper corrosion of gasoline is caused by element sulphur and polysulphide which is similar to element sulphur in nature in Wuhan Petrochemical Co., Ltd., SINOPEC. In order to decrease corrosion, the pH value of washing water condensate from high pressure receiving tank and top receiving tank in main tower must be kept in the range of 8.0-9.0, and washing water should be deoxidized water, steam condensate water or boiler feed water before alkali treating.

关 键 词：催化裂化 元素硫 铜片腐蚀 联合装置 塔顶 汽油 氧化试验 多硫化物 冷凝液 洗涤水 

分 类 号：TE624[石油与天然气工程—油气加工工程]