Membrane-based air dehumidification:A comparative review on membrane contactors,separative membranes and adsorptive membranes  

作　　者：Huaixun Lim Kunli Goh Miao Tian Rong Wang 

机构地区：[1]Interdisciplinary Graduate School,Nanyang Technological University,Singapore 637335,Singapore [2]Singapore Membrane Technology Centre,Nanyang Environmental and Water Research Institute,Nanyang Technology University,Singapore 637141,Singapore [3]School of Ecology and Environment,Northwestern Polytechnical University,1 Dongxiang Road,Chang’an District,Xi’an 710129,China [4]School of Civil and Environmental Engineering,Nanyang Technological University,Singapore 639798,Singapore

出　　处：《Chinese Journal of Chemical Engineering》2022年第1期121-144,共24页中国化学工程学报（英文版）

基　　金：supported by Singapore Membrane Technology Centre(SMTC),Interdisciplinary Graduate Programme,Nanyang Environment and Water Research institute and Nanyang Technological university for this research.

摘　　要：This review compares the different types of membrane processes for air dehumidification.Three main categories of membrane-based dehumidification are identified–membrane contactors using porous membranes with concentrated liquid desiccants,separative membranes using dense membrane morphology with a pressure gradient to drive the separation of moisture from air,and adsorptive membranes using nanofibrous membranes which adsorb and capture moisture to realise dehumidification.Drawing upon the importance of dehumidification and humidity control for urban sustainability and energy efficacy,this review critically analyses and recognizes the three unique categories of membrane-based air dehumidification technologies.Essentially,the discussion is broken into three sections-one for each category-discriminating in terms of the driving force,membrane structure and properties,and its performance indicators.Readers will notice that despite having the same objective to dehumidify air,the polymers used amongst each category differs to suit the operating requirements and optimize dehumidification performance.At the end of each section,a performance table or summary of dehumidifying membranes in its class is provided.The final section concludes with a comparative review of the three categories on membrane-based air dehumidification technologies and draw inspiration from parallel research to rationalise the potential and innovative use of promising materials in membrane fabrication for air dehumidification.

关 键 词：Membrane dehumidification Membrane contactor H2O/N2 selectivity Permeability Adsorption 

分 类 号：TQ051.893[化学工程]