公开(公告)号：US09359272B2

公开(公告)日：2016-06-07

申请号：US11993714

申请日：2006-06-23

Applicant: Martin Rothaemel ,  Uwe Finck ,  Thomas Renner ,  Henning Buchold

Inventor： Martin Rothaemel ,  Uwe Finck ,  Thomas Renner ,  Henning Buchold

IPC: C07C1/20 ,  C07C4/06

CPC classification number: C07C1/20 ,  C07C4/06 ,  Y02P30/42 ,  C07C11/02

Abstract: A process and a plant for producing C2-C4 olefins, in particular propylene, from an educt mixture containing steam as well as methanol vapor and/or dimethyl ether vapor. The educt mixture is reacted in at least one first reactor on a granular, form-selective zeolite catalyst to obtain a reaction mixture including low-molecular olefins and gasoline hydrocarbons, which in a first separating device is separated into a mixture rich in C2-C4 olefins, a mixture rich in C5+ gasoline hydrocarbons, and an aqueous phase, wherein the mixture rich in gasoline hydrocarbons is mixed with an inert medium, the mixture thus obtained is reacted in at least one second reactor on a granular zeolite catalyst to obtain a product mixture including C2-C4 olefins, and this product mixture is recirculated to the first separating device, and wherein the mixture rich in C5+ gasoline hydrocarbons is separated in a second separating device into a product stream containing C5-C6 hydrocarbons and a product stream containing C7+ hydrocarbons, before being supplied to the second reactor, and only the product stream containing C7+ hydrocarbons is supplied to the second reactor, whereas the product stream containing C5-C6 hydrocarbons together with the educt mixture is supplied to the at least one first reactor.

Abstract translation: 一种用于由含有蒸汽以及甲醇蒸汽和/或二甲醚蒸气的离析混合物生产C 2 -C 4烯烃，特别是丙烯的方法和设备。 在颗粒形式选择性沸石催化剂上的至少一个第一反应器中使该离子混合物反应，得到包含低分子烯烃和汽油烃的反应混合物，其在第一分离装置中分离成富含C 2 -C 4 烯烃，富含C5 +汽油烃的混合物和水相，其中将富含汽油烃的混合物与惰性介质混合，由此得到的混合物在至少一个第二反应器中在颗粒状沸石催化剂上反应，得到产物 混合物包括C 2 -C 4烯烃，并将该产物混合物再循环到第一分离装置，并且其中富含C5 +汽油烃的混合物在第二分离装置中分离成含有C 5 -C 6烃的产物流和含有C 7+ 烃，然后供应到第二反应器，并且仅将含有C7 +烃的产物流供应到第二反应器 将包含C5-C6烃与产物混合物的产物流一起供应至至少一个第一反应器。

公开(公告)号：US20110319686A1

公开(公告)日：2011-12-29

申请号：US11993714

申请日：2006-06-23

Applicant: Martin Rothaemel ,  Uwe Finck ,  Thomas Renner ,  Henning Buchold

Inventor： Martin Rothaemel ,  Uwe Finck ,  Thomas Renner ,  Henning Buchold

IPC: C07C1/20 ,  B01J14/00 ,  C07C4/00

CPC classification number: C07C1/20 ,  C07C4/06 ,  Y02P30/42 ,  C07C11/02

Abstract: A process and a plant for producing C2-C4 olefins, in particular propylene, from an educt mixture containing steam as well as methanol vapor and/or dimethyl ether vapor. The educt mixture is reacted in at least one first reactor on a granular, form-selective zeolite catalyst to obtain a reaction mixture including low-molecular olefins and gasoline hydrocarbons, which in a first separating device is separated into a mixture rich in C2-C4 olefins, a mixture rich in C5+ gasoline hydrocarbons, and an aqueous phase, wherein the mixture rich in gasoline hydrocarbons is mixed with an inert medium, the mixture thus obtained is reacted in at least one second reactor on a granular zeolite catalyst to obtain a product mixture including C2-C4 olefins, and this product mixture is recirculated to the first separating device, and wherein the mixture rich in C5+ gasoline hydrocarbons is separated in a second separating device into a product stream containing C5-C6 hydrocarbons and a product stream containing C7+ hydrocarbons, before being supplied to the second reactor, and only the product stream containing C7+ hydrocarbons is supplied to the second reactor, whereas the product stream containing C5-C6 hydrocarbons together with the educt mixture is supplied to the at least one first reactor.

Abstract translation: 一种用于由含有蒸汽以及甲醇蒸汽和/或二甲醚蒸气的离析混合物生产C 2 -C 4烯烃，特别是丙烯的方法和设备。 在颗粒形式选择性沸石催化剂上的至少一个第一反应器中使该离子混合物反应，得到包含低分子烯烃和汽油烃的反应混合物，其在第一分离装置中分离成富含C 2 -C 4 烯烃，富含C5 +汽油烃的混合物和水相，其中将富含汽油烃的混合物与惰性介质混合，将所得混合物在至少一个第二反应器中在颗粒状沸石催化剂上反应，得到产物 混合物包括C 2 -C 4烯烃，并将该产物混合物再循环到第一分离装置，并且其中富含C5 +汽油烃的混合物在第二分离装置中分离成含有C 5 -C 6烃的产物流和含有C 7+ 烃，然后供应到第二反应器，并且仅将含有C7 +烃的产物流供应到第二反应器 将包含C5-C6烃与产物混合物的产物流一起供应至至少一个第一反应器。