IMPROVING ZEOLITE CATALYST LIFE,申请号EP19850304294-传众专利搜索

IMPROVING ZEOLITE CATALYST LIFE

申请公布号：EP0168185(A3)

申请号：EP19850304294

申请日期：1985.06.14

申请公布日期：1987.07.29

申请人：

EXXON RESEARCH AND ENGINEERING COMPANY

发明人：PIETERS, WIM JOHAN MEINDERT;OKUMURA, YOSHIHARU

分类号：C07C1/24;B01J29/40;B01J29/87;C07B61/00;C07C1/00;C07C1/20;C07C11/02;C07C67/00

主分类号：C07C1/24

摘要：The catalyst life of zeolites useful in the conversion to olefins of alcohols (e.g. methanol) and/or their ether derivatives (e.g. dimethyl ether) is improved by modifying the zeolite in a 2-stage procedure by providing a controlled low amount of a coke precursor deposit on the external surface of the zeolite, and then heating this treated zeolite in an inert gas at specifically controlled temperatures for a minimum time.