FCC催化剂制备过程中焙烧料打浆罐顶腐蚀问题的探究  

Study on the corrosion problem of the top of calcines beating tank in the preparation of FCC catalyst

作　　者：王国刚 王振南 范大申 张金庆 孙志强 刘辉 张保存 卢宗良 Wang Guogang;Wang Zhennan;Fan Dashen;Zhang Jinqing;Sun Zhiqiang;Liu Hui;Zhang Baocun;Lu Zongliang(Qingdao Huicheng Environmental Technology Co.,Ltd.,Qingdao 266500,Shandong,China)

机构地区：[1]青岛惠城环保科技股份有限公司,山东青岛266500

出　　处：《工业催化》2021年第2期59-62,共4页Industrial Catalysis

摘　　要：FCC催化剂制备过程中氯离子的存在对焙烧料打浆罐顶金属设备的腐蚀较大。通过对打浆罐顶的腐蚀情况检测分析,指出控制催化剂制备过程中氯元素的加入量,增加焙烧尾气的抽取力度,同时在打浆罐外设置轴流风机或者引风机,在保证收率的情况下增加内部气流的流动性,可很大程度上改善腐蚀环境。此外,在工艺条件允许的情况下,还可采取加入适当的缓蚀剂或者选择合适的新型材料及适当考虑罐面衬氟等措施。Chlorine affects seriously on the corrosion of metal parts on the top of beating tank for calcines.Through the detection and analysis of the corrosion on the top of the refining tank after the FCC catalyst is roasted,it is pointed out that controlling the amount of chlorine element added in the process of catalyst preparation,increasing the extraction strength of the roasting tail gas,and setting the axial flow fan or induced draft fan outside the refining tank to increase the fluidity of the internal air flow under the condition of ensuring the yield can greatly reduce the corrosion.In addition,if the process conditions permit,adding appropriate corrosion inhibitor or selecting appropriate new materials and properly considering the tank surface fluorine lining measures can achieve the maximum economic benefits.

关 键 词：催化剂工程 FCC催化剂 氯离子 腐蚀 设备设施 

分 类 号：TQ426.6[化学工程] TE624.91[石油与天然气工程—油气加工工程]