Fluid Mechanics and Transport Phenomena

Process intensification of catalytic hydrogenation of ethylanthraquinone with gas-liquid microdispersion

  1. J. Tan,
  2. J. S. Zhang,
  3. Y. C. Lu,
  4. J. H. Xu,
  5. G. S. Luo*

Article first published online: 8 JUN 2011

DOI: 10.1002/aic.12670

Issue

AIChE Journal

AIChE Journal

Volume 58, Issue 5, pages 1326–1335, May 2012

Additional Information

How to Cite

Tan, J., Zhang, J. S., Lu, Y. C., Xu, J. H. and Luo, G. S. (2012), Process intensification of catalytic hydrogenation of ethylanthraquinone with gas-liquid microdispersion. AIChE J., 58: 1326–1335. doi: 10.1002/aic.12670

Author Information

  1. Dept. of Chemical Engineering, The State Key Lab of Chemical Engineering, Tsinghua University, Beijing 100084, China

*Dept. of Chemical Engineering, The State Key Lab of Chemical Engineering, Tsinghua University, Beijing 100084, China

Publication History

  1. Issue published online: 6 APR 2012
  2. Article first published online: 8 JUN 2011
  3. Accepted manuscript online: 28 APR 2011 11:31AM EST
  4. Manuscript Revised: 18 APR 2011
  5. Manuscript Received: 8 JAN 2011

Funded by

  • National Natural Science Foundation of China. Grant Numbers: 20876084, 21036002
  • National Basic Research Program of China. Grant Number: 2007CB714302

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

View Full Article (HTML) Get PDF (1652K)

Keywords:

  • gas-liquid;
  • hydrogenation;
  • microdispersion;
  • mass transfer

Abstract

In this article, to miniaturize the hydrogenation reactor and make the H2O2 production with more safety a gas-liquid microdispersion system was generated to intensify the process of catalytic hydrogenation of ethylanthraquinone by passing the gas-liquid microdispersion system through a generally packed bed reactor. A microdispersion device with a 5 μm pore size microfiltration membrane as the dispersion medium has been developed and microbubbles in the size of 10–100 μm were successfully generated. The reaction and mass transfer performance was evaluated. The conversion of ethylanthraquinone as much as 35% was realized in less than 3.5 s. The overall volume mass transfer coefficient in the microdispersion reaction system reached in the range of 1–21 s−1, more than two orders of magnitude larger than the values in normal gas-liquid trickle-bed reactors. A mathematical model in the form of Sh = 2.0 + 54.7Sc1/3We1/2ϕ1/10 has been firstly suggested, which can well predict the overall mass transfer coefficient. © 2011 American Institute of Chemical Engineers AIChE J, 2012

View Full Article (HTML) Get PDF (1652K)