Process for the preparation of ethylene, propylene and optionally isomers of butene from methanol and/or dimethyl ether
Номер патента: MY126573A
Опубликовано: 31-10-2006
Автор(ы): Friedrich-Wilhelm Moeller Dr, Hans-Dieter Holtmann Dr, Highman Christopher, Koss Ulrich, Peter Koenig Dr
Принадлежит: Metallgesellschaft AG
Опубликовано: 31-10-2006
Автор(ы): Friedrich-Wilhelm Moeller Dr, Hans-Dieter Holtmann Dr, Highman Christopher, Koss Ulrich, Peter Koenig Dr
Принадлежит: Metallgesellschaft AG
Реферат: 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 280-5700 C AND 0.1-1 BAR; WITHDRAWING A PRODUCT MIXTURE CONTAINING 2-4C OLEFIN AND C5+ HYDROCARBON FROM THE FIRST REACTOR (8); 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FIRST PRODUCT MIXTURE IS FED THROUGH A SEPARATOR (24) AND A SECOND PRODUCT MIXTURE CONTAINING ETHYLENE AND PROPYLENE IS WITHDRAWN.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 C5+ 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 380-7000 C TO A SECOND REACTOR (32) CONTAINING A SECOND FORM SELECTIVE CATALYST. A THIRD PRODUCT MIXTURE IS WITHDRAWN FROM THE SECOND REACTOR (32) WHICH CONTAINS 50OLEFINIC COMPONENTS. THIS PRODUCT MIXTURE IS COOLED AND FED TO A SEPARATOR (24).(FIG.1)
Method of converting metoxy compound such as methanol and/or dimethyl ether into olefin products (options)
Номер патента: RU2198867C2. Автор: Дийк Кристиаан П. Ван. Владелец: Ван Дийк Текнолоджи Эл.Эл.Си.. Дата публикации: 2003-02-20.