当前位置: X-MOL 学术Chem. Eng. Process. Process Intensif. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Multilevel cross flow rotating packed bed to enhance gas film control mass transfer process
Chemical Engineering and Processing: Process Intensification ( IF 4.3 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.cep.2021.108321
Qing-Qing Duan , Zhi-Guo Yuan , You-Zhi Liu , Shan-Shan Duan , Xi-Fan Duan

Using lye to absorb SO2 as the experimental system, the effect of the packing stator, packing distribution and packing axial height on the gas volume mass transfer coefficient kyae in multilevel cross flow rotating packed bed (MC-RPB) was studied. Further explored the mechanism and enhanced characteristics of MC-RPB to enhance gas film control mass transfer. The results show that the kyae increases with the increase of β, q, u; Compared with model II, kyae increased by about 0.6∼1 times in model I, indicating that in the gas film control system, the filler stator can enhance gas disturbance and effectively strengthen the gas film mass transfer process; When the packing distribution is changed, the kyae increases by 0.2 to 0.4 times in model V compared with model IV, indicating that the end effect zone of MC-RPB is located in the area where the gas just enters the packing layer; When the axial height of the packing layer is changed, the kyae of model IV is 0.1∼0.4 times smaller than that of model III, which further proves that MC-RPB can effectively enhance the gas film mass transfer process.



中文翻译:

多级错流旋转填料床以增强气膜控制传质过程

以碱液吸收SO 2为实验体系,研究了填料定子,填料分布和填料轴向高度对多级错流旋转填料床(MC-RPB)中气体体积传质系数k y a e的影响。进一步探讨了MC-RPB增强气膜控制传质的机理和增强的特性。结果表明,随着βqu的增加,k y a e增大;与模型II相比,k y a e模型I增加了约0.6〜1倍,说明在气膜控制系统中,填料定子可以增强气体扰动,有效地增强气膜传质过程。当填料分布被改变时,ķ ÿ一个ê通过在模型v 0.2至0.4倍与模型IV相比,表明MC-RPB的末端效应区位于其中气体刚进入填料层的面积增加; 当改变填充层的轴向高度时,模型IV的k y a e是模型III的k y a e的0.1〜0.4倍,这进一步证明MC-RPB可以有效地增强气膜传质过程。

更新日期:2021-02-15
down
wechat
bug