发明名称 |
PROCESS FOR THE PRODUCTION OF OLEFINS |
摘要 |
A process for the production of olefins from synthesis gas comprises a first synthesis stage in which a mixture of methanol and higher alcohols are formed from a synthesis gas comprising hydrogen and carbon monoxide. The catalyst for the first synthesis stage comprises the oxides of copper and zinc in intimate association with each other and a promoting compound selected from the group consisting of chromium, cerium, lanthanum, manganese, thorium, and an alkali metal. The materials from the first synthesis stage are separated into a gas phase and a liquid phase. Thereafter the methanol is separated from the higher alcohol fractions. The higher alcohols are then subjected to dehydration in a dehydration stage which comprises passing the higher alcohol fraction over an alkalized dehydration catalyst at a pressure in the range of 0.5-1 bar and a temperature in the range of 350 DEG -500 DEG C. Thereafter the olefins produced by the dehydration of the higher alcohols are separated into the olefinic and non-olefinic materials. Preferred dehydration catalysts include alkalized aluminum oxide and alkalized calcium phosphate. |
申请公布号 |
EP0034767(B1) |
申请公布日期 |
1983.12.21 |
申请号 |
EP19810100993 |
申请日期 |
1981.02.13 |
申请人 |
SUD-CHEMIE AG |
发明人 |
HOFSTADT, CARL-ERNST, DR. DIPL.-CHEM.;SCHNEIDER, MICHAEL, DR. DIPL.-CHEM.;KOCHLOEFL, KAREL, DR. DIPL.-ING. |
分类号 |
B01J23/00;B01J23/80;B01J23/86;B01J23/889;B01J27/18;C07B61/00;C07C1/00;C07C1/24;C07C9/02;C07C11/02;C07C27/00;C07C27/06;C07C29/15;C07C29/151;C07C29/154;C07C29/80;C07C31/02;C07C67/00;F02B1/04 |
主分类号 |
B01J23/00 |
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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