发明名称 |
Method for preparing lower olefins |
摘要 |
Here is disclosed a method for preparing lower olefins by bringing methanol and/or dimethyl ether into contact with a catalyst in a gaseous phase. In this method, the contact between the methanol and/or dimethyl ether and the catalyst is carried out at a weight hourly space velocity of 0.1 to 20 hr-1 at a reaction temperature of 300 DEG to 650 DEG C. under a total pressure of 0.1 to 100 atm by the use of, as the catalyst, an alkaline earth metal-modified alkaline earth metal-containing zeolite catalyst; the alkaline earth metal-modified alkaline earth metal-containing zeolite catalyst being prepared as disclosed in the Specification by modifying an alkaline earth metal-containing aluminoborosilicate so that the alkaline earth metal in an amount of at least 0.25% by weight in terms of the metal may be mixed with or supported in the zeolite catalyst.
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申请公布号 |
US4767886(A) |
申请公布日期 |
1988.08.30 |
申请号 |
US19870022222 |
申请日期 |
1987.03.05 |
申请人 |
DIRECTOR-GENERAL OF AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY |
发明人 |
KAWAMURA, KICHINARI;KONO, YASUO;OKADO, HIDEO;HAGIWARA, HIROYUKI;TAKAYA, HARUO |
分类号 |
B01J29/00;B01J29/04;B01J29/86;C01B39/04;C01B39/12;C07B61/00;C07C1/00;C07C1/20;C07C11/02;C07C67/00;(IPC1-7):C07C1/00 |
主分类号 |
B01J29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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