Yu Kang1; Wang Weijie1; Zhang Tao2; Yong Yumei1; Yang Chao1
Source Publicationchinesejournalofchemicalengineering
AbstractFive different internals were designed, and their effects on phase holdup and backmixing were investigated in a gas–liquid concurrent upflow reactor where the spherical alumina packing particles of three diameters (3.0, 4.5 and 6.0?mm) were slightly expanded under the conditions of varied superficial gas velocities (6.77?×?10 ?2 - 3.61?×?10 ?1 ?m·s ?1 ) and superficial liquid velocities (9.47?×?10 ?4 - 2.17?×?10 ?3 ?m·s ?1 ). The experimental results show that the gas holdup increases with the superficial gas velocity and particle size, opposite to the variational trend of liquid holdup. When an internal component is installed amid the upflow reactor, a higher gas holdup, a less liquid holdup and a larger Peclet number characterizing the weaker backmixing are obtained compared to those in the bed without internals under the same operating conditions. Additionally, the minimal backmixing is observed in the reactor equipped with the internals with a novel multi-step design. Finally, empirical correlations were proposed for estimating gas holdup, liquid holdup and Peclet number with the relative deviations within 11%, 12% and 25%, respectively.
Document Type期刊论文
2.PetroChina Petrochemical Research Institute
First Author Affilication中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Yu Kang,Wang Weijie,Zhang Tao,et al. effectsofinternalsonphaseholdupandbackmixinginaslightlyexpandedbedreactorwithgasliquidconcurrentupflow[J]. chinesejournalofchemicalengineering,2019,27(10):2273.
APA Yu Kang,Wang Weijie,Zhang Tao,Yong Yumei,&Yang Chao.(2019).effectsofinternalsonphaseholdupandbackmixinginaslightlyexpandedbedreactorwithgasliquidconcurrentupflow.chinesejournalofchemicalengineering,27(10),2273.
MLA Yu Kang,et al."effectsofinternalsonphaseholdupandbackmixinginaslightlyexpandedbedreactorwithgasliquidconcurrentupflow".chinesejournalofchemicalengineering 27.10(2019):2273.
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