Pervaporation with nanoporous membranes

被引:1
|
作者
Podgolin, Stepan K. [1 ]
Poyarkov, Andrei A. [1 ]
Eliseev, Artem A. [2 ]
Petukhov, Dmitrii I. [2 ]
Loimer, Thomas [3 ]
Eliseev, Andrei A. [1 ,2 ]
机构
[1] Lomonosov Moscow State Univ, Dept Mat Sci, Moscow, Russia
[2] Lomonosov Moscow State Univ, Dept Chem, Moscow, Russia
[3] TU Wien, Inst Fluid Mech & Heat Transfer, A-1060 Vienna, Austria
基金
俄罗斯科学基金会; 奥地利科学基金会;
关键词
CONVECTIVE HEAT-TRANSFER; TRANSPORT; EVAPORATION; PERMEATION; SEPARATION;
D O I
10.1016/j.desal.2024.118378
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A comprehensive experimental investigation and theoretical description of liquid-gas pervaporative transport across nanoporous membranes is presented. Anodic alumina and track-etched membranes, featuring straight channels within a diameter range of 25-200 nm, were experimentally tested in pervaporation of liquid water, alcohols and hydrocarbons at various operation conditions. The pivotal role of the equilibrium saturation pressure of penetrants (varied from similar to 10 to similar to 50,000 Pa) on the membranes performance was exposed, while no significant influence of neither channel diameters nor membrane thickness was revealed. Pervaporative flux, exceeding 1.5<middle dot>10(-5) mol<middle dot>m(-2)<middle dot>s(-1)<middle dot>Pa-1 (similar to 10 kg<middle dot>m(-2)<middle dot>h(-1)<middle dot>atm(-1) for water at 60 degrees C), surpasses Knudsen permeability of the membranes, indicating liquid transport driven by Laplace pressure. However, it lies far below the theoretical Hertz-Knudsen limit for evaporating menisci, revealing heat transfer limitation. The study rivals a substantial temperature drop, reaching 30 degrees C at the evaporation plane. That is proportional to the square root of the saturation pressure of penetrants, as revealed by experimental results and theoretical description. It results in transport limitation with heat supply to the evaporation menisci, constrained especially at the membrane interfaces. Strong cooling of the evaporative plane suppresses pervaporative flux with diminishing local saturation pressure of penetrants. The provided description provides low relative deviation (<30 %) within the whole set of penetrants and membrane microstructures. It was successfully utilized for improving stability of nanoporous membranes in desalination pervaporation with deposition of highly permeable thin graphene oxide and MXene selective addlayers. Composite membranes reveal a slight lowering of the performance compared to the nanoporous substrates, while having a greatly enhanced long-term stability in pervaporative desalination with ions rejection.
引用
收藏
页数:10
相关论文
共 50 条
  • [31] Removal of Pyridine from Water by Pervaporation Using Filled SBR Membranes
    Singha, N. R.
    Ray, S.
    Ray, S. K.
    Konar, B. B.
    JOURNAL OF APPLIED POLYMER SCIENCE, 2011, 121 (03) : 1330 - 1334
  • [32] NANOPOROUS GRAPHENE Membranes at the limit
    Koh, Dong-Yeun
    Lively, Ryan P.
    NATURE NANOTECHNOLOGY, 2015, 10 (05) : 385 - 386
  • [33] Towards the dehydration of ethanol using pervaporation cross-linked poly (vinyl alcohol)/graphene oxide membranes
    Castro-Munoz, Roberto
    Buera-Gonzalez, Juan
    de la Iglesia, Oscar
    Galiano, Francesco
    Fila, Vlastimil
    Malankowska, Magdalena
    Rubio, Cesar
    Figoli, Alberto
    Tellez, Carlos
    Coronas, Joaquin
    JOURNAL OF MEMBRANE SCIENCE, 2019, 582 : 423 - 434
  • [34] Preparation of hydrophobic nanoporous methylated SiO2 membranes and application to nanofiltration of hexane solutions
    Tsuru, Toshinori
    Nakasuji, Takehiro
    Oka, Minami
    Kanezashi, Masakoto
    Yoshioka, Tomohisa
    JOURNAL OF MEMBRANE SCIENCE, 2011, 384 (1-2) : 149 - 156
  • [35] Application of tree biochar in PDMS pervaporation membranes
    Lan, Yongqiang
    Wang, Weihong
    ADVANCES IN POLYMER TECHNOLOGY, 2018, 37 (06) : 1979 - 1986
  • [36] Pervaporation composite membranes for ethyl acetate production
    Penkova, Anastasia
    Polotskaya, Galina
    Toikka, Alexander
    CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2015, 87 : 81 - 87
  • [37] Membranes of crosslinked hyperbranch polymers and their pervaporation properties
    Wei, Xiu-Zhen
    Liu, Xiao-Fen
    Zhu, Bao-Ku
    Xu, You-Yi
    DESALINATION, 2009, 247 (1-3) : 647 - 656
  • [38] Matrimid®/MgO mixed matrix membranes for pervaporation
    Jiang, Lan Ying
    Chung, Tai-Shung
    Rajagopalan, Raj
    AICHE JOURNAL, 2007, 53 (07) : 1745 - 1757
  • [39] Characterization and Pervaporation Properties of Modified PU Membranes
    Ye, Hong
    Wang, Yu
    Song, Boyu
    Zhang, Zhongguo
    2015 INTERNATIONAL CONFERENCE ON ENERGY, MATERIALS AND MANUFACTURING ENGINEERING (EMME 2015), 2015, 25
  • [40] Graphene-based membranes for pervaporation processes
    Guan, Kecheng
    Liu, Gongping
    Matsuyama, Hideto
    Jin, Wanqin
    CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2020, 28 (07) : 1755 - 1766