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- Title
Gas-phase mass transfer characteristics in a counter airflow shear rotating packed bed.
- Authors
Liu, Youzhi; Zhang, Fangfang; Gu, Deyin; Qi, Guisheng; Jiao, Weizhou; Chen, Xiaoyan
- Abstract
The gas-phase mass transfer characteristics in a counter airflow shear rotating packed bed (CAS-RPB) were studied. The gas volumetric mass transfer coefficient ( kyae) was characterized with the physical absorption system NH3-H2O and the effective interfacial area ( ae) was determined by the chemical absorption system CO2-NaOH, and then the gas-phase mass transfer coefficient ( ky) was obtained. The gas-phase mass transfer characteristics in the CAS-RPB were compared with those in the rotating packed bed with split packing (SP-RPB) under the same operating conditions. The experimental results indicated that the ky ae, ae, and ky for counter-rotation of adjacent packing rings in the CAS-RPB and SP-RPB were larger than those for co-rotation, and the ky ae, ae, and ky for counter/co-rotation in the CAS-RPB were respectively greater compared with those for counter/co-rotation in the SP-RPB. This confirmed that the CAS-RPB can further intensify the gas-phase mass transfer process compared to the SP-RPB. Moreover, the correlative expressions for the ky ae, ae, and ky in the CAS-RPB and SP-RPB were obtained and were in close agreement with the experimental results.
- Subjects
GAS phase reactions; MASS transfer; AIR flow
- Publication
Canadian Journal of Chemical Engineering, 2016, Vol 94, Issue 4, p771
- ISSN
0008-4034
- Publication type
Article
- DOI
10.1002/cjce.22434