公开(公告)号：US11986800B2

公开(公告)日：2024-05-21

申请号：US17785216

申请日：2020-11-10

Applicant: SABIC GLOBAL TECHNOLOGIES, B.V.

Inventor： Wugeng Liang ,  Dick Nagaki ,  Yu-Lun Fang ,  David West

IPC: B01J23/10 ,  B01J21/04 ,  B01J37/02 ,  B01J37/08 ,  C07C2/84

CPC classification number: B01J23/10 ,  B01J21/04 ,  B01J37/0201 ,  B01J37/088 ,  C07C2/84 ,  C07C2521/04 ,  C07C2523/02 ,  C07C2523/10

Abstract: The invention relates to a composition containing a catalyst having high catalytic stability for conducting oxidative coupling of methane (OCM) at high carbon efficiency, while improving both methane and oxygen conversion. Particularly, the inventive catalyst is a metal oxide supported catalyst, which contains an alkali metal promoter and a mixed metal oxide component having at least one alkali earth metal and at least one rare earth metal. The metal oxide support is selected in a manner, such that at least a portion of the metal oxide support is capable of reacting with at least a part or whole of the alkali metal promoter under conditions of calcination during catalyst preparation. The invention further provides a method for preparing such a metal oxide supported catalyst composition, using a calcination process. Additionally, the invention further describes a process for producing C2+ hydrocarbons, using such a catalyst composition.