化工进展

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多级雾化旋转填料床的传质性能

张燕青1,潘朝群2,邓先和2,张一敏3   

  1. 1湖北大学化学化工学院,2华南理工大学化学与化工学院传热与节能国家教育部重点实验室,3武汉科技大学资源与环境工程学院
  • 出版日期:2010-02-05 发布日期:2010-02-05

Mass transfer characteristics of multistage spraying rotating packed bed

ZHANG Yanqing1,PAN Zhaoqun2,DENG Xianhe2,ZHANG Yimin3   

  1. 1College of Chemistry and Chemical Engineering,Hubei University,Wuhan 430062,Hubei,China;2The Key Lab of Enhanced Heat Transfer and Energy Conservation,Ministry of Educational,South China University of Technology,Guangzhou 510640,Guangdong,China;3 College of Resources and Environment Engineering,Hubei University of Science and Technology,Wuhan 430081,Hubei,China
  • Online:2010-02-05 Published:2010-02-05

摘要: 以两级雾化超重力旋转床为例,用化学吸收法考察了超重力因子β、液体流量、气体流量等对体积传质系数kyα的影响。结果表明:多级雾化超重力旋转床的体积传质系数随气液流量的增加而增加,在β较小时,实验曲线的斜率较大,kyα随β的增加急剧增加;但是当β超过100后,曲线的斜率减小,kyα随β的增加缓慢增大。

Abstract: The volumetric mass transfer coefficient was measured by chemical absorption reactions for two-stage spraying rotating packed bed (RPB) under different operating conditions. Effects of the high gravity factor β,the liquid flux and the gas flux on the volumetric mass transfer coefficient kyα in the RPB were investigated. Experimental results showed that the volumetric mass transfer coefficient kyα increases with the gas and the liquid fluxes. When β is small,the experimental curve slope is larger,and kyα increases sharply with the β increase. While,when β reaches to 100,the experimental curve slope becomes small,and kyα increases slowly with the β increase.

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