张金赫,李花,沈驭臣,俞路,何德民,潘艳秋

• 1:大连理工大学化工学院
• 2:英特尔半导体(大连)有限公司

摘要(Abstract)：

以膜蒸馏海水淡化为研究背景,引入气液两相流技术,分别将氮气和低压水蒸气通入炭膜管内对膜蒸馏过程进行强化,并通过实验考察不同操作条件下的两相流强化效果。结果表明:通入两种气体后均可有效提高渗透通量,水蒸气的强化效果更好;渗透通量随氮气流量的增大先增大后缓慢减少,随水蒸气流量的增大持续增大;料液入口温度较低和浓度较高时,膜蒸馏两相流强化传质效率较高;料液入口温度越高,氮气与水蒸气的强化传质效率差别越小。研究结果将为进一步探究膜蒸馏强化过程奠定基础。

关键词(KeyWords)： 海水淡化;膜蒸馏;过程强化;两相流;炭膜

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本业务费(DUT17JC07);; 大连理工大学大学生创新创业训练计划(2016101410481)

作者(Author): 张金赫,李花,沈驭臣,俞路,何德民,潘艳秋

参考文献(References)：

• [1]Khalifa A,Ahmad H,Antar M,et al.Experimental and theoretical investigations on water desalination using direct contact membrane distillation[J].Desalination,2017,404:22-34.
• [2]Enrico D,Ali A,Macedonio F.Membrane distillation:recent developments and perspectives[J].Desalination,2015,356:56-84.
• [3]Wang P,Chung T S.Recent advances in membrane distillation processes:membrane development,configuration design and application exploring[J].Journal of Membrane Science,2015,474:39-56.
• [4]Shirazi M M A,Kargari A,Tabatabaei M,et al.Concentration of glycerol from dilute glycerol wastewater using sweeping gas membrane distillation[J].Chemical Engineering and Processing:Process Intensification,2014,78:58-66.
• [5]Alkhudhiri A,Darwish N,Hilal N.Membrane distillation:a comprehensive review[J].Desalination,2011,287:2-18.
• [6]Khalifa A,Lawal D,Antar M,et al.Experimental and theoretical investigation on water desalination using air gap membrane distillation[J].Desalination,2015,376:94-108.
• [7]FAN Hua(樊华),JIANG Qin-liang(姜钦亮),HOU De-yin(侯得印),et al.Effect of polymer content on the properties of PVDF electro-spinning nanofiber membrane for membrane distillation(聚合物含量对膜蒸馏用聚偏氟乙烯电纺纳米纤维膜的影响)[J].Technology of Water Treatment(水处理技术),2016,42(4):69-74.
• [8]Abu-Zeid E R,Zhang Y,Dong H,et al.A comprehensive review of vacuum membrane distillation technique[J].Desalination,2015,356:1-14.
• [9]Wu C,Li Z,Zhang J,et al.Study on the heat and mass transfer in air-bubbling enhanced vacuum membrane distillation[J].Desalination,2015,373:16-26.
• [10]Chen G,Yang X,Wang R,et al.Performance enhancement and scaling control with gas bubbling in direct contact membrane distillation[J].Desalination,2013,308:47-55.
• [11]Ding Z,Liu L,Liu Z,et al.The use of intermittent gas bubbling to control membrane fouling in concentrating TCM extract by membrane distillation[J].Journal of Membrane Science,2011,372:172-181.
• [12]YAN Xun-dong(闫勋栋).Graft modification of ceramic membranes and its application in membrane distillation(陶瓷膜接枝改性及其在膜蒸馏过程中的应用)[D].Dalian(大连):Dalian University of technology(大连理工大学),2015.
• [13]XIONG Yu-qin(熊玉琴),ZHOU Fan(周凡),GAO Fei(高飞),et al.Influence of bubble size and relative humidity on bubbling-enhanced membrane distillation(气泡大小及相对湿度对鼓泡强化膜蒸馏的影响)[J].Membrane Science and Technology(膜科学与技术),2016,36(2):65-69.