Study on Metal-Passivating Elements in FCC
Operation and Their Migration
Liu Xiaodong;Cui Yan;Zhang Ruichi;Chen Zupi
【期刊名称】《中国炼油与石油化工（英文版）》 【年(卷),期】2004(000)002
【摘要】Elements including P, Sb, Ce, La, B, Sn, Ti, Bi and Mg that could passivate Ni and V were studied on their migration on FCC catalysts and carriers under simulated commercial FCC operating conditions.Test results had shown that P, Sb, B and Sn compounds exhibited migration activity. The effects of temperature, fluidizing medium and contact time on migration of antimony compounds were investigated,and the mechanism regarding antimony migration was proposed. Meanwhile, it was disclosed that Ni on catalyst could stimulate Sb contained in the metal passivator to move onto FCC catalyst in tandem with the interaction between nickel and antimony. 【总页数】6页(48-53) 【
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键
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metal
passivator;migration;catalytic
cracking;antimony;contaminating metal
【作者】Liu Xiaodong;Cui Yan;Zhang Ruichi;Chen Zupi
【作者单位】Research Institute of Petroleum Processing,SINOPEC, Beijing 100083;Research Institute of Petroleum Processing,SINOPEC, Beijing 100083;Research Institute of Petroleum Processing,SINOPEC,
Study on Metal-Passivating Elements in FCC Operation and Their Migration
