Steady-state production of olefins in high yields during the oxidative coupling of methane: Utilization of a membrane contactor

被引：19

作者：

Cordi, EM ^{[1
]}

Pak, S ^{[1
]}

Rosynek, MP ^{[1
]}

Lunsford, JH ^{[1
]}

机构：

[1] TEXAS A&M UNIV,DEPT CHEM,COLLEGE STN,TX 77843

来源：

APPLIED CATALYSIS A-GENERAL | 1997年 / 155卷 / 01期

关键词：

methane; oxidative coupling; integrated recycle system; membrane contactor; for olefin removal; silver ions; for olefin removal from gas stream;

D O I：

10.1016/S0926-860X(96)00386-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Oxidative coupling of methane (OCM) catalysis has been studied extensively in recent years, with the goal of using abundant natural gas resources for the production of feedstock olefins. We have developed an integrated recycle system which includes a Mn/Na2WO4/SiO2 catalyst for the conversion of methane to ethane, ethylene, and propylene and a membrane contactor for the continuous removal of olefins from the gas stream. The olefins, complexed by aqueous Ag+ ions, are subsequently released into the gas phase at 760 Torr. Olefin yields up to 75% with an olefin purity of 85% (principally ethylene) can be achieved at a gas recycle ratio of 11.

引用

页码：L1 / L7

页数：7

共 12 条

[1]

Fang X., 1992, J MOL CATALYSIS CHIN, V6, P427

[2]

Hall RB, 1995, METHANE AND ALKANE CONVERSION CHEMISTRY, P123

[3]

Hughes R.D., 1986, RECENT DEV SEPARATIO, VIX, P173

[4] METHANE TO ETHYLENE WITH 85-PERCENT YIELD IN A GAS RECYCLE ELECTROCATALYTIC REACTOR-SEPARATOR [J].