公开(公告)号：US20180065110A1

公开(公告)日：2018-03-08

申请号：US15649222

申请日：2017-07-13

Applicant: Korea Research Institute of Chemical Technology

Inventor： Sung Tak KIM ,  Geun Jae KWAK ,  Ki Won JUN ,  Ahron HWANG ,  Seok Chang KANG

IPC: B01J23/10 ,  B01J29/06 ,  B01J35/00 ,  B01J35/10 ,  C10G11/05

CPC classification number: B01J23/10 ,  B01J29/061 ,  B01J35/006 ,  B01J35/10 ,  B01J2229/38 ,  B01J2231/20 ,  B01J2231/76 ,  B01J2523/375 ,  C10G11/05 ,  C10G2300/708 ,  Y02P30/42

Abstract: The present invention relates to an anti-coking catalyst having a physical property of reducing coke formation, which comprises a solid acid catalyst containing gadolinium (Gd) on the surface, a preparation method thereof, and a use thereof. The preparation method includes a first step of determining the amount of gadolinium (Gd) or a Gd-providing precursor to be used relative to the total weight of the solid acid catalyst, which reduces the coking of a specific solid acid catalyst below a specific level under a specific reaction condition; and a second step of preparing a Gd-containing solid acid catalyst using the amount determined in the first step.The catalyst according to the present invention is a catalyst in which an appropriate weight ratio of gadolinium is supported on the surface of a pure solid acid substance or solid acid substance on which a specific metal is supported. Therefore, the production of coke on the catalyst surface is inhibited while maintaining the activity of the solid acid catalyst in a hydrocarbon conversion reaction, and as a result, the catalyst of the present invention exhibits an effect of improving its lifespan.