Liquid Holdup and Axial Dispersion in Trickle Bed Reactor

Liang Zhirong; Ge Shiying; Min Enze and Li Pangsheng(East China Institute of Chemical Technology; Shanghai)

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Liquid Holdup and Axial Dispersion in Trickle Bed Reactor

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- Liquid Holdup and Axial Dispersion in Trickle Bed Reactor
- CIESC Journal Issue 3, (1989)
- 作者机构：
  
  华东化工学院,华东化工学院,化工部科学技术研究总院,石油化工科学研究院 ,上海,上海
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 June 1989，
  
  Published：25 June 1989
- 稿件说明：
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Liang Zhirong, Ge Shiying, Min Enze and Li Pangsheng(East China Institute of Chemical Technology, et al. Liquid Holdup and Axial Dispersion in Trickle Bed Reactor[J]. CIESC Journal, 1989, (3).
DOI：

Liang Zhirong, Ge Shiying, Min Enze and Li Pangsheng(East China Institute of Chemical Technology, et al. Liquid Holdup and Axial Dispersion in Trickle Bed Reactor[J]. CIESC Journal, 1989, (3). DOI：

摘要

本文研究了小颗粒滴流床反应器中持液量和液相轴向扩散.在液体表现流速6.15×10~(-3)-2.37×10~(-2)m/s、气体表观流速7.07×10~(-3)-0.56m/s范围内

用4种气液系统和6种填料

在298±1K下

同时得到压降和动持液量数据

并得到动持液量的关联式:B_d=h_d/ε_B=2.23Re_(?)~(0.41)(Ga_(?)~(?))~(0.31)(a_td_p/ε_B)Re_(?)~(-0.066)结果表明

三叶草形催化剂床层的持液量比相应尺寸的圆柱形高.此外

在温度298±1K下

应用玻璃球填料及4种不同气液系统

在低相互作用区(滴流区)

用脉冲法测得液相RTD曲线

并得到Pe_l的关联式:Pe_l=0.117(Re_l/h_d)~0.62Ga_l~(-0.092)

Abstract

The liquid hold up and axial dispersion in a trickle bed reactor were studied in this investigation. In the range of liquid superficial velocity 6.15× 10-3-2.37×10-2m/s and gas superficial velocity 7.07×10-3-0.56m/s

pressure drop and liquid hold up were obtained simultaneously using four gas-liquid systems and six kinds of packing at 298±1K. In the experimental range used

the dynamic holdup data could be correlated by: The results showed that the liquid hold up in trickle beds with three-lobe particles was higher than that with cylindrical particles ot equivalent sizes. Curves of liquid phase residence time distribution under trickle flow conditions were plotted and interpreted in terms of dispersion model. The results were correlated by:

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