This paper introduces the revamping and operation of the quench-oil system in Tianjin Ethylene Plant,and presents some problems to be noted in the revamping.

• 介绍中国石油化工股份有限公司天津分公司烯烃部乙烯装置急冷油系统的两次改造及实际运行情况,提出了该系统改造应注意的问题。