Search International and National Patent Collections

1. (WO2018144370) A PROCESS FOR OXIDATIVE CONVERSION OF METHANE TO ETHYLENE

Pub. No.:    WO/2018/144370    International Application No.:    PCT/US2018/015669
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Tue Jan 30 00:59:59 CET 2018
IPC: C07C 2/84
C07C 5/48
C07C 11/04
C07C 9/04
C07C 9/06
C01B 3/38
Applicants: SABIC GLOBAL TECHNOLOGIES, B.V.
MAMEDOV, Aghaddin
WEST, David
SARSANI, Vidya Sagar Reddy
LIANG, Wugeng
Inventors: MAMEDOV, Aghaddin
WEST, David
SARSANI, Vidya Sagar Reddy
LIANG, Wugeng
Title: A PROCESS FOR OXIDATIVE CONVERSION OF METHANE TO ETHYLENE
Abstract:
A process for producing ethylene and syngas comprising reacting, via OCM, first reactant mixture (CH4&O2) in first reaction zone comprising OCM catalyst to produce first product mixture comprising ethylene, ethane, hydrogen, CO2, CO, and unreacted methane; introducing second reactant mixture comprising first product mixture to second reaction zone excluding catalyst to produce second product mixture comprising ethylene, ethane, hydrogen, CO, CO2, and unreacted methane, wherein a common reactor comprises both the first and second reaction zones, wherein ethane of second reactant mixture undergoes cracking to ethylene, wherein CO2 of second reactant mixture undergoes hydrogenation to CO, and wherein an amount of ethylene in the second product mixture is greater than in the first product mixture; recovering methane stream, ethane stream, CO2 stream, ethylene stream, and syngas stream (CO&H2) from the second product mixture; and recycling the ethane stream and the carbon dioxide stream to second reaction zone.