文献类型：期刊文献

英文题名：Gas-liquid mass transfer and bubble size distribution in a multi-Cyclone separator

作者：Xu, Xiao[1];Lu, Hao[1];Qian, Yundong[1];Zhang, Bohan[1];Wang, Hualin[2];Liu, Honglai[2];Yang, Qiang[3]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2019

卷号：65

期号：1

起止页码：221

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20184305985429);WOS:【SCI-EXPANDED(收录号:WOS:000454632100022)】；

基金：The authors wish to express their sincere gratitude to the National Natural Science Foundation of China (51678238, 51722806) and Shanghai Rising-Star Program (16QA1401200) for financial support.

语种：英文

外文关键词：multi-cyclone; mass transfer; multiphase reactors; bubble imaging

摘要：This article discusses the use of a multi-cyclone separator, which is a simplified form of a degassing hydrocyclone, in the separation of sweeping nitrogen bubbles and dissolved oxygen from water. The motion of the nitrogen bubbles and mass transfer of dissolved oxygen is discussed. It was observed that the Sauter mean diameter and gas volume in the swirling flow region as well as the total gas holdup increased as the volumetric ratio of gas to liquid flow increased. Almost all bubbles were found to exit through the gas outlet, indicating optimum performance of the bubble-separation process. The multi-cyclone separator was found to achieve good performance for the mass transfer of oxygen from water to nitrogen. This work is important in predicting the destination of bubbles and dissolved gas in swirling flow. (c) 2018 American Institute of Chemical Engineers AIChE J, 65: 215-223, 2019