Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor
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Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor
Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor
中国化学工程学报(英文版)2023年60卷第8期 页码:293-303
Affiliations:
1. Institute of Circular Economy, Beijing University of Technology,Beijing,China,100124
2. Faculty of Materials and Manufacturing, Beijing University of Technology,Beijing,China,100124
3. China Ecological Civilization Research and Promotion Association,Beijing,China,100035
Author bio:
Funds:
DOI:
中图分类号:
纸质出版:2023
Accepted:
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Lijuan Zhao, Zhe Tan, Xiaoguang Zhang, 等. Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor[J]. 中国化学工程学报(英文版), 2023,60(8):293-303.
Lijuan Zhao, Zhe Tan, Xiaoguang Zhang, Qijun Zhang, Wei Wang, Qiang Deng, Jie Ma, De'an Pan. Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor[J]. Chinese Journal of Chemical Engineering, 2023, 60(8): 293-303.
Lijuan Zhao, Zhe Tan, Xiaoguang Zhang, 等. Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor[J]. 中国化学工程学报(英文版), 2023,60(8):293-303.DOI:
Lijuan Zhao, Zhe Tan, Xiaoguang Zhang, Qijun Zhang, Wei Wang, Qiang Deng, Jie Ma, De'an Pan. Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor[J]. Chinese Journal of Chemical Engineering, 2023, 60(8): 293-303.DOI:
Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor
摘要
Abstract
In the reaction process of carbonate desulfurization lead paste
the produced PbCO
3
is easily wrapped in the outer periphery of PbSO
4
to form a product layer
hindering the mass transfer process. Therefore
it is necessary to break the PbCO
3
product layer. In this work
the rotor stator-reinforced reactor was selected as the enhanced desulfurization reactor for the purpose of breaking the PbCO
3
product layer and promoting mass transfer. The breakage process of the PbCO
3
product layer generated during the PbSO
4
desulfurization was modeled. Computational fluid dynamics simulation to the rotation conditions was carried out to theoretically analyze the fluid flow characteristics of PbSO
4
slurry and the wall shear stress affecting the breakage of PbCO
3
product layer. By optimizing the rotation conditions
the distribution ratio of effective rotor wall shear stress range achieved 96.1%
and the stator wall shear stress range reached 99.15% under a rotation of 2000 r·min
-1
. The research work provides a reference for analysis of the mechanism of product layer breakage in the PbSO
4
desulfurization process
and gives a clea
r and intuitive systematic study on the fluid flow characteristics and wall shear stress of the desulfurization reactor.
关键词
Keywords
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