Preface to Special Issue of Membranes and Membrane Processes based on Confined Mass Transfer
Preface to Special Issue of Membranes and Membrane Processes based on Confined Mass
Transfer
Corresponding author.E-mail address:wqjin@njtech.edu.cn. 【期刊名称】中国化学工程学报(英文版) 【年(卷),期】2017(025)011 【总页数】1
Membrane separation is playing an increasingly critical role in diverse fields as a cost-efficient and energy-economic technology.Ultrafiltration and micro filtration based on the size-sieving mechanism of macroporous media have been clearly elucidated using classical theories of mass transfer.However,membrane processes including pervaporation,gas
separation,ion
exchange,nanofiltration,reverse
osmosis,etc.,mainly involve mass transfer in narrow spaces whose sizes are comparable to the free distances of molecules mobility,i.e.,confined mass transfer.Currently,it is not fully understood for the confined mass transfer in these membranes,and consequently such membranes are mainly empirically manufactured.
Aiming to explore the confined mass transfer mechanism,engineer the precise membrane structure and achieve the efficient separation processes,two major programs have been launched in China.(1)Major Program
of
National
Natural
Science
Foundation
of