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author:

Wu, Yanxiang (Wu, Yanxiang.) [1] | Wang, Liang'en (Wang, Liang'en.) [2] | Zhao, Zhishan (Zhao, Zhishan.) [3] | Tan, Tian'en (Tan, Tian'en.) [4]

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Abstract:

The mass transfer in catalyst capsule is analysed. It is pointed out that the wetting incompletion of catalyst beads and the concentration gradient within the catalyst capsule reduce catalyst efficiency. The effectiveness factor of catalyst capsule equals to the product of ηx and ηc. The former, the effective wetting rate of catalyst beads, represents the influences of wetting incompletion of catalyst on catalyst efficiency, the latter represents that of concentration gradient. A two-dimensional model is established and an equation to calculate ηc is given. It is indicated that ηc is influenced not only by radial diffusion, but also by axial liquid flow. The influence of diffusion resistance on effectiveness factor is greatly weakened by axial liquid flow.

Keyword:

Axial flow Catalysts Distillation Flow of fluids Mass transfer Mathematical models Wetting

Community:

  • [ 1 ] [Wu, Yanxiang]Dept. of Chem. Eng., Fuzhou Univ., Fuzhou 350002, China
  • [ 2 ] [Wang, Liang'en]Dept. of Chem. Eng., Fuzhou Univ., Fuzhou 350002, China
  • [ 3 ] [Zhao, Zhishan]Dept. of Chem. Eng., Fuzhou Univ., Fuzhou 350002, China
  • [ 4 ] [Tan, Tian'en]Dept. of Chem. Eng., Fuzhou Univ., Fuzhou 350002, China

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Source :

Journal of Chemical Industry and Engineering (China)

ISSN: 0438-1157

CN: 11-1946/TQ

Year: 2002

Issue: 5

Volume: 53

Page: 503-507

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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