公开(公告)号：EP2792397A1

公开(公告)日：2014-10-22

申请号：EP12858032.1

申请日：2012-12-07

申请人： Nippon Refine Co., Ltd.

发明人： TAKEYAMA Tomokiyo ,  ODA Akiyoshi ,  KAWASE Yasuhito ,  KAWASE Taijun

IPC分类号： B01D53/18 ,  B01D3/16 ,  B01J10/00 ,  B01J19/32 ,  F28C1/06 ,  F28C3/06

CPC分类号： B01D53/185 ,  B01D1/26 ,  B01D3/324 ,  B01D53/14 ,  B01D53/1406 ,  B01D53/1487 ,  B01D53/18 ,  B01D53/78 ,  B01D2252/103 ,  B01D2257/40 ,  B01D2257/708 ,  B01J19/32 ,  B01J2219/3221 ,  B01J2219/32213 ,  B01J2219/3222 ,  B01J2219/32268 ,  B01J2219/32272 ,  B01J2219/32425 ,  F28F25/087

摘要： Provided is an NMP recovery system 1 for causing NMP-containing gas to contact NMP-absorbing water, including: fillers (10A) to (10D) that are permeable to the water and hold the water, wherein the permeated water moves according to gravity to flow out from the fillers; an NMP-containing gas distribution unit (30) for distributing the NMP-containing gas so as to cause the NMP-containing gas to contact the water held by the fillers (10A) to (10D); and a water distribution unit (40) for distributing the water so as to make the water permeate through the fillers (10A) to (10D). In the fillers (10A) to (10D), the NMP-containing gas is made to contact the NMP-absorbing water. Accordingly, NMP in the NMP-containing gas is absorbed in the water, so that the NMP is separated from the NMP-containing gas.