公开(公告)号：US20040181111A1

公开(公告)日：2004-09-16

申请号：US10773169

申请日：2004-02-09

Applicant: BASF Akiengesellschaft

Inventor： Marcus Sigl ,  Christoph Ubler

IPC: C07C005/13

CPC classification number: C07C5/2518 ,  C07C5/2512 ,  C07C6/04 ,  C07C2521/04 ,  C07C2523/04 ,  C07C2529/40 ,  C07C11/08

Abstract: Process for producing a 1-butene-containing C4-hydrocarbon stream (1-C4null stream) from a 1-butene- and 2-butene-containing C4-hydrocarbon stream (1- and 2-C4null feed stream) whose 1-butene content is lower than that of the 1-C4null stream, by a) feeding the 1- and 2-C4null feed stream and a 1-butene- and 2-butene-containing C4-hydrocarbon stream (1- and 2-C4null recycle stream) whose 1-butene content is lower than that of the 1-C4null stream and which has been produced by means of step (b) below into a distillation column and taking off the 1-C4null stream and a 2-butene-containing C4-hydrocarbon stream (2-C4null stream) whose 1-butene content is lower than that of the 1- and 2-C4null feed stream and of the 1- and 2-C4null recycle stream from the distillation column (step a) and b) producing the 1 - and 2-C4null recycle stream from the 2-C4null stream by bringing the 2-C4null stream into contact with an isomerization catalyst which catalyzes the conversion of 2-butenes into 1-butene in a reaction zone (step b).

Abstract translation: 用于从含1-丁烯和2-丁烯的C 4烃流（1-和2- C4 <=>进料流）中生产含1-丁烯的C 4烃流（1-C4 < ），其1-丁烯含量低于1-C4 流的1-丁烯含量，通过a）将1-和2- C4 <=>进料流和含1-丁烯和2-丁烯的C4- 其1-丁烯含量低于1-C4 流的烃流（1-和2-C4 <=>循环料流），并且其已经通过下面的步骤（b）生产进入蒸馏塔 并取出其1-丁烯含量低于1-和2- C4 <= 1的C4-C4流和含2-丁烯的C4-烃流（2-C4 < 进料流和来自蒸馏塔的1和2-C4 <=>循环流（步骤a）和b）从2-C4 <=>流产生1和2-C4 <=>循环流 通过使2-C4 <=>流与异构化催化剂接触，所述异构化催化剂催化将2-丁烯转化为1-丁烯在反应中 n区（步骤b）。