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1. (WO2018048629) MULTI-STAGE ADIABATIC OXIDATIVE COUPLING OF METHANE

Pub. No.:    WO/2018/048629    International Application No.:    PCT/US2017/048255
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Thu Aug 24 01:59:59 CEST 2017
IPC: C07C 11/04
C07C 2/82
B01J 23/24
B01J 23/68
Applicants: SABIC GLOBAL TECHNOLOGIES, B.V.
LIANG, Wugeng
SARSANI, Vidya, Sagar, Reddy
WEST, David
LENGYEL, Istvan
Inventors: LIANG, Wugeng
SARSANI, Vidya, Sagar, Reddy
WEST, David
LENGYEL, Istvan
Title: MULTI-STAGE ADIABATIC OXIDATIVE COUPLING OF METHANE
Abstract:
A multi-stage method for producing olefins, wherein each stage comprises introducing a reactant mixture to an adiabatic reactor comprising an oxidative coupling of methane (OCM) catalyst composition, wherein the reactant mixture comprises CH4 and 02 and is characterized by an inlet temperature; allowing the reactant mixture to contact the OCM catalyst composition and react via an OCM reaction to form a product mixture comprising unreacted methane and olefins; recovering the product mixture from the reactor, wherein the product mixture is characterized by an outlet temperature, and wherein the outlet temperature is greater than the inlet temperature; and optionally cooling the product mixture, wherein each stage is characterized by a narrow temperature rise, wherein the narrow temperature rise in each stage is a difference between the outlet temperature for that particular stage and the inlet temperature for that particular stage, and wherein the narrow temperature rise is from 100°C to 300°C.