公开(公告)号：MY161169A

公开(公告)日：2017-04-14

申请号：MYPI2013003223

申请日：2012-03-02

Applicant: BASF SE

Inventor： KOSTOVA ALBENA ,  WECK ALEXANDER ,  BENFER REGINA ,  GOTZ JOCHEN ,  REZAI ALIREZA ,  MORILLO ARISTIDES ,  OLBERT GERHARD ,  PFAB PETER ,  KOLIOS GRIGORIOS ,  WEBER MARKUS

IPC: C07C7/04 ,  C07C7/08 ,  C07C7/11

Abstract: THE INVENTION RELATES TO A PROCESS FOR WORKUP OF A STREAM (1) COMPRISING BUTANE AND/OR BUTADIENE, BUTANE, HYDROGEN AND/OR NITROGEN AND CARBON DIOXIDE, COMPRISING THE FOLLOWING STEPS: (A) ABSORPTION OF THE STREAM (1) COMPRISING BUTANE AND/OR BUTADIENE, BUTANE, HYDROGEN AND/OR NITROGEN, WITH OR WITHOUT CARBON DIOXIDE, WITH A MIXTURE (5) COMPRISING 80 TO 97% BY WEIGHT OF N-METHYLPYRROLIDONE AND 3 TO 20% BY WEIGHT OF WATER TO OBTAIN A STREAM (9) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND BUTANE, WITH OR WITHOUT CARBON DIOXIDE, AND A STREAM (7) COMPRISING HYDROGEN AND/OR NITROGEN AND BUTANE, (B) EXTRACTIVE DISTILLATION OF THE STREAM (9) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND BUTANE, WITH OR WITHOUT CARBON DIOXIDE, WITH A STREAM (13) COMPRISING 80 TO 97% BY WEIGHT OF N-METHYLPYRROLIDONE AND 3 TO 20% BY WEIGHT OF WATER TO SEPARATE THE STREAM (9) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND BUTANE, WITH OR WITHOUT CARBON DIOXIDE, INTO A STREAM (17) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND A STREAM (15) COMPRISING ESSENTIALLY BUTANE, WITH OR WITHOUT CARBON DIOXIDE, (C) DISTILLATION OF THE STREAM (17) COMPRISING N-METHYLPYRROLIDONE, WATER BUTANE AND/OR BUTADIENE INTO A STREAM (23) COMPRISING ESSENTIALLY N-METHYLPYRROLIDONE AND WATER, AND A STREAM (21) COMPRISING BUTANE AND/OR BUTADIENE. (FIGURE 1)