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公开(公告)号：EP2976155B1
公开(公告)日：2020-10-21
申请号：EP14711276.7
申请日：2014-03-20
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公开(公告)号：EP3234072A1
公开(公告)日：2017-10-25
申请号：EP15817081.1
申请日：2015-12-15
IPC分类号： C10G3/00 , B01D3/14 , B01D3/40 , B01J14/00 , B01J19/00 , C07C1/20 , C07C2/86 , C07C11/06 , C10G7/08
CPC分类号： C07C1/20 , B01D3/143 , B01D3/40 , B01J8/0278 , B01J8/0453 , B01J8/0457 , B01J8/0492 , B01J2208/00176 , B01J2208/00371 , B01J2208/00707 , B01J2208/00752 , B01J2208/025 , C07C2/864 , C07C2/865 , C07C7/08 , C07C7/11 , C07C2521/04 , C07C2529/40 , C10G3/42 , C10G7/08 , C10G2400/20 , C10G2400/30 , Y02P30/20 , C07C11/06
摘要： The present invention relates to a plant and a process for producing propylene at least one oxygenate, comprising a reactor for converting the reactant mixture into a product mixture which comprises propylene and also aliphatic and aromatic C5+ hydrocarbons, at least one distillation column for removing a C5+ stream, the C5+ stream comprising at least 90 wt % of the aliphatic and aromatic C5+ hydrocarbons of the product mixture, an extractive distillation column for separating the C5+ stream into an aromatics stream and an aliphatics stream, the aliphatics stream comprising at least 90 wt % of the aliphatics of the C5+ stream, and the aromatics stream comprising at least 90 wt % of the aromatics of the C5+ stream, and an aliphatics recycle line for at least partial recycling of the aliphatics stream to the reactor. According to the invention, an aromatics recycle line is provided which returns the aromatics stream at least partially as extractant into the extractive distillation column.
摘要翻译： 本发明涉及一种生产丙烯和至少一种含氧化合物的装置和方法，该装置包括用于将反应物混合物转化成产物混合物的反应器，所述产物混合物包含丙烯以及脂族和芳族C 5+烃，至少一个蒸馏塔用于除去 C 5+料流，C 5+料流包含至少90重量％的产物混合物的脂族和芳族C 5+烃，用于将C 5+料流分离成芳族料流和脂族料流的萃取蒸馏塔 ，所述脂族化合物流包含至少90wt％的C 5+流的脂族化合物和包含至少90wt％的C 5+流的芳族化合物的芳族化合物流以及用于至少部分再循环的脂族化合物再循环管线 的脂肪族物流流入反应器。 根据本发明，提供芳族化合物循环管线，其将芳族化合物流至少部分地作为萃取剂返回到萃取蒸馏塔中。
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公开(公告)号：EP2976155A1
公开(公告)日：2016-01-27
申请号：EP14711276.7
申请日：2014-03-20
发明人： HAAG, Stéphane , DROPSCH, Holger , GORNY, Martin , OHLHAVER, Theis , BACH, Hermann , ROTHÄMEL, Martin
CPC分类号： C07C1/20 , B01J29/405 , B01J29/48 , B01J29/85 , B01J37/10 , B01J2229/24 , B01J2229/36 , C07C2529/40 , Y02P20/52 , Y02P20/582 , Y02P30/42 , C07C11/04 , C07C11/06
摘要： There is proposed a process for producing short-chain olefins by conversion of oxygenates in a multi-stage fixed-bed reactor (OTO reactor) with reaction zones each operated adiabatically, in which the individual stages or reaction zones are covered with beds of a granular, form-selective zeolite catalyst which previously has been subjected to a steam pretreatment in an external, isothermally or quasi-isothermally operated steam pretreatment reactor. By means of the external steam pretreatment according to the invention, higher lifetimes of the catalyst used are obtained as compared to a steam pretreatment in the OTO reactor. The availability of the OTO reactor for the olefin production is increased.
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