发明名称 |
FREMGANGSMAATE FOR FREMSTILLING AV LAVERE OLEFINER. |
摘要 |
<p>The invention relates to a process for the production of lower olefins from methanol by reaction of a reaction mixture containing methanol and/or dimethyl ether vapour and water vapour in a tubular reactor over an indirectly cooled catalyst based on crystalline aluminosilicates of the pentasil type having an Si/Al atomic ratio of at least 10. The process is characterised in that in order to produce an olefin mixture containing at least 5% by weight of ethylene, at least 35% by weight of propylene and at most 30% by weight of butylene, relative to the entire hydrocarbons, the reaction is carried out at a total pressure of 10 to 90 kPa, at a weight ratio of water to methanol or to methanol equivalents of 0.1 to 1.5 at a temperature of the reactor cooling medium of 280 to 570 DEG C over a proton-containing catalyst of the pentasil type which has an alkali metal content of less than 380 ppm, a ZnO content of less than 0.1% by weight, a CdO content of less than 0.1% by weight, a BET surface area of 300 to 600 m<2>/g and a pore volume (measured by mercury porosimetry) of 0.3 to 0.8 cm<3>/g.</p> |
申请公布号 |
NO911139(A) |
申请公布日期 |
1991.09.24 |
申请号 |
NO19910001139 |
申请日期 |
1991.03.21 |
申请人 |
SUED-CHEMIE AKTIENGESELLSCHAFT;METALLGESELLSCHAFT AKTIENGESELLSCHAFT |
发明人 |
SCHNEIDER, MICHAEL;SCHMIDT, FRIEDRICH;BURGFELS, GOETZ;BUCHOLD, HENNING;MOELLER, FRIEDRICH-WILHELM |
分类号 |
B01J35/10;B01J29/40;C07B61/00;C07C1/20;C07C1/24;C07C11/04;C07C11/06;C07C11/08;(IPC1-7):C07C1/20;C07C11/02 |
主分类号 |
B01J35/10 |
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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