发明名称 |
FremgangsmÕte for Õ fremstille etylen, propylen og eventuelle butenisomerer fra metanol og/eller dimetyleter |
摘要 |
<p>Production of lower olefins with 2-3C atoms comprises reacting a methanol and/or dimethylether vapour and a reaction mixture containing water vapour in a first reactor (8) on a first form selective catalyst at 280-570 degrees C and 0.1-1 bar; withdrawing a product mixture containing 2-4C olefin and 5C<+> hydrocarbon from the first reactor; and cooling. The cooled first product mixture is fed through a separator (24) and a second product mixture containing ethylene and propylene is withdrawn. A 5C<+> stream is obtained, which is vaporised and mixed with water vapour. A ratio of H2O:hydrocarbons of 0.5-3:1 is used. The mixture containing water vapour is fed at 380-700 degrees C to a second reactor (32) containing a second form selective catalyst. A third product mixture is withdrawn from the second reactor which contains 50% olefinic components. This product mixture is cooled and fed to a separator.</p> |
申请公布号 |
NO982461(A) |
申请公布日期 |
1998.12.07 |
申请号 |
NO19980002461 |
申请日期 |
1998.05.29 |
申请人 |
METALLGESELLSCHAFT AG |
发明人 |
HIGMAN, CHRISTOPHER;K÷NIG, PETER;M÷LLER, FRIEDRICH-WILHELM;HOLTMANN, HANS-DIETER;KOSS, ULRICH |
分类号 |
C07C1/20;(IPC1-7):C07C1/20 |
主分类号 |
C07C1/20 |
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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