公开(公告)号：US20150251968A1

公开(公告)日：2015-09-10

申请号：US14433098

申请日：2013-10-04

Applicant: SAIPEM S.P.A.

Inventor： Maura Brianti ,  Massimo Conte

IPC: C07C1/20 ,  C07C41/06

CPC classification number: C07C1/20 ,  C07C29/10 ,  C07C41/06 ,  Y02P20/125 ,  C07C11/09 ,  C07C31/04 ,  C07C31/08 ,  C07C43/046

Abstract: Process for the production of high-purity isobutene starting from a stream prevalently containing MTBE (Methyl-Tert Butyl Ether) or ETBE (Ethyl-Tert Butyl Ether) which essentially comprises the following areas in sequence: a fractionation area for obtaining a stream of high-purity MTBE or ETBE; a cracking area of said stream of MTBE or ETBE for obtaining an outgoing stream prevalently containing isobutene and the relative alcohol, methanol or ethanol; a washing area with water of the stream leaving the cracking area for the recovery of the relative alcohol, in order to obtain a stream containing isobutene, the ether fed and light compounds and a stream substantially consisting of water and relative alcohol, with a relevant fractionation section for separating the washing water to be recycled to the same washing area from the relative alcohol; a fractionation area of the stream containing isobutene, the ether fed and light compounds for separating a stream of high-purity isobutene. The process can be possibly integrated with a process for the production of MTBE or ETBE.

Abstract translation: 从含有MTBE（甲基叔丁基醚）或ETBE（乙基叔丁基醚）的流中开始生产高纯度异丁烯的方法，其基本上包括以下区域：用于获得高流量的分馏区域 纯度MTBE或ETBE; 所述MTBE或ETBE流的裂解区域用于获得盛有异丁烯和相关醇，甲醇或乙醇的流出物流; 一个洗涤区域，其中的水流出离开裂解区域以回收相关醇，以便获得含有异丁烯，醚进料和轻​​质化合物的流和基本上由水和相对醇组成的物流，并具有相关的分馏 用于将待循环的洗涤水从相关酒精分离到相同的洗涤区域; 含有异丁烯的流的分馏区域，醚进料和用于分离高纯度异丁烯流的轻化合物。 该过程可能与生产MTBE或ETBE的过程相结合。

公开(公告)号：US09422205B2

公开(公告)日：2016-08-23

申请号：US14433098

申请日：2013-10-04

Applicant: Saipem S.P.A.

Inventor： Maura Brianti ,  Massimo Conte

IPC: C07C1/20 ,  C07C41/06 ,  C07C29/10

CPC classification number: C07C1/20 ,  C07C29/10 ,  C07C41/06 ,  Y02P20/125 ,  C07C11/09 ,  C07C31/04 ,  C07C31/08 ,  C07C43/046

Abstract: Process for the production of high-purity isobutene starting from a stream prevalently containing MTBE (Methyl-Tert Butyl Ether) or ETBE (Ethyl-Tert Butyl Ether) which essentially comprises the following areas in sequence: • a fractionation area for obtaining a stream of high-purity MTBE or ETBE; • a cracking area of said stream of MTBE or ETBE for obtaining an outgoing stream prevalently containing isobutene and the relative alcohol, methanol or ethanol; • a washing area with water of the stream leaving the cracking area for the recovery of the relative alcohol, in order to obtain a stream containing isobutene, the ether fed and light compounds and a stream substantially consisting of water and relative alcohol, with a relevant fractionation section for separating the washing water to be recycled to the same washing area from the relative alcohol; • a fractionation area of the stream containing isobutene, the ether fed and light compounds for separating a stream of high-purity isobutene. The process can be possibly integrated with a process for the production of MTBE or ETBE.

Abstract translation: 从含有MTBE（甲基叔丁基醚）或ETBE（乙基叔丁基醚）的物流开始生产高纯度异丁烯的方法，其基本上包括以下区域：·分级区域，用于获得 高纯度MTBE或ETBE; •所述MTBE或ETBE流的裂解区域，用于获得盛有异丁烯和相关醇，甲醇或乙醇的流出物流; •洗涤区域，用水流出离开裂解区域以回收相关醇，以获得含有异丁烯，醚进料和轻​​质化合物的流和基本上由水和相对酒精组成的物流，具有相关的 分离部分，用于将待循环的洗涤水从相关醇分离到相同的洗涤区域; •含有异丁烯的流的分馏区域，醚进料和用于分离高纯度异丁烯流的轻化合物。 该过程可能与生产MTBE或ETBE的过程相结合。