Effects of Gel Composition on Separation Properties of Ethanol/Water Mixtures by Acrylamide Gel Membranes

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yoshihiro Maekawa¹  Masashi Asaeda¹  Yasushi Tateishi¹  Shuji Sakohara¹ 

[1] Department of Chemical Engineering, Hiroshima University

关键词: Membrane Separation;    Acrylamide Get Membrane;    Porous Ceramic Membrane;    Pervaporation;    Network Structure;    Nonfreezing Water;    Bound Water;   

DOI  :  10.1252/jcej.25.598

来源: Maruzen Company Ltd

【 摘 要 】

References(11)Cited-By(3)Separation performance of acrylamide gel membranes for ethanol/water mixtures is greatly affected by the effective size of the pores in the network and the network’s homogeneity. With increasing concentration of crosslinker (N,N′-methylenebisacrylamide), coarse and dense parts of a networks, i.e., the heterogeneous structure, are produced in the gels, though the effective size of the pores in the network must be reduced. Such a heterogeneous structure appears remarkably at low concentration of primary monomer (acrylamide). The coarse part of the network significantly affects the leakage of ethanol molecules through a membrane and the state of water in the gels, which is closely related to the selective permeation of water through the membrane. As a result, optimum gel compositions exist for the permeation of water and for the obstruction of ethanol permeation, respectively.

【 授权许可】

Unknown