Absorption of SO2 with Ammonia-Based Solution in a Cocurrent Rotating Packed Bed

The emission of SO2 leads to serious environmental problems, which has attracted increasing attention. In this work, a cocurrent rotating packed bed (CO-RPB) with a novel SiC structured packing was employed as a process intensification candidate to upgrade existing desulfurization systems. The effec...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2014-10, Vol.53 (40), p.15731-15737
Main Authors: Chu, Guang-Wen, Luo, Yong, Shan, Cong-Yun, Zou, Hai-Kui, Xiang, Yang, Shao, Lei, Chen, Jian-Feng
Format: Article
Language:English
Online Access:Get full text
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Summary:The emission of SO2 leads to serious environmental problems, which has attracted increasing attention. In this work, a cocurrent rotating packed bed (CO-RPB) with a novel SiC structured packing was employed as a process intensification candidate to upgrade existing desulfurization systems. The effects of rotating speed, gas flow rate, liquid flow rate, SO2 inlet concentration, total salt concentration, and alkalinity on the SO2 removal efficiency were investigated by adopting the ammonia-based solution as the absorbent. The experimental results showed that the SO2 concentration at the RPB outlet can meet the new Chinese emission standard very well. In addition, the gas-side volumetric overall mass transfer coefficient (K y a) was deduced based on the mass balance equation, and its correlation was also proposed. The predicted K y a calculated by the correlation was in good agreement with the experimental data, and the deviation was within the range of ±8%.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie502519v