Title:
膜分離と蒸留を組み合わせた濃縮方法及び装置
Document Type and Number:
Japanese Patent JP6934655
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a novel concentration method or concentration device for concentrating at least one of alkene and alkane having 2 to 4 carbon atoms and same carbon number from a mixture containing them by combination of a membrane separation device and a distillation tower.SOLUTION: There is provided a concentration method for concentrating alkene and/or alkane from a raw material mixture containing alkene and alkane having 2 to 4 carbon atoms and same carbon number by combination of a membrane separation device and a distillate tower, in which the raw material mixture is supplied to the membrane separation device and alkene is penetrated through a membrane and recovered, a membrane non-penetration mixture is supplied to the distillation tower, steam from an overhead is circulated and supplied to a supply passage of the raw material mixture and alkane is recovered from a tower bottom.SELECTED DRAWING: Figure 1
Inventors:
Yamaki Yudai
Yoshimune Miki
Nobuo Hara
Hideyuki Negishi
Akira Endo
Yoshimune Miki
Nobuo Hara
Hideyuki Negishi
Akira Endo
Application Number:
JP2017053175A
Publication Date:
September 15, 2021
Filing Date:
March 17, 2017
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
C07C7/144; B01D3/00; B01D53/22; C07C7/04; C07C9/08; C07C11/06
Other References:
辻 赳士, 外3名,蒸留、膜分離を用いたハイブリッドシステムの最適構造導出手法,公益社団法人化学工学会第81年会研究発表講演プログラム集,2016年03月13日,ZAA205
Industrial & Engineering Chemistry Research,2005年 月 日,Vol. 44, No. 1,pp. 226-230
AIChE Journal,1998年 月 日,Vol. 44, No. 1,pp. 93-105
Industrial & Engineering Chemistry Research,2005年 月 日,Vol. 44, No. 1,pp. 226-230
AIChE Journal,1998年 月 日,Vol. 44, No. 1,pp. 93-105
Attorney, Agent or Firm:
Hidewa Patent Office