Abstract: A novel olefin removal catalyst (ROC-Z1) is developed by East China University of Science and Technology to replace the acid clay in the adsorption unit for olefin removal. This paper introduces the industrial test and operation of this catalyst in SINOPEC Zhenhai Refining & Chemical Company. The results of the industrial test show that ROC-Z1 can be used in the original process to replace the acid clay without changing any operation condition. The activity and stability of ROC-Z1 is much better than those of commercial clay used, the lifetime of ROC-Z1 is 4 times of that of the clay. The performance of ROC-Z1and its capability to reduce the solid waste of the process is so excellent that the industrial application prospect is good.