Effect of Distributor Design on Gas-Liquid Distribution in Monolithic Bed at High Gas/Liquid Ratios

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (4): 693-700.

• CATALYSIS, KINETICS AND REACTORS • Previous Articles Next Articles

Effect of Distributor Design on Gas-Liquid Distribution in Monolithic Bed at High Gas/Liquid Ratios

ZHOU Yuan¹, AL-DAHHAN Muthanna², DUDUKOVIC Milorad³, LIU Hui¹

1. Beijing University of Chemical Technology, Beijing 100029, China;
2. Missouri University of Science and Technology, Rolla, MO 65409, USA;
3. Washington University in St.Louis, MO 63130, USA

Received:2011-12-11 Revised:2012-06-21 Online:2012-09-15 Published:2012-08-28
Supported by:
Supported by the State-funded Postgraduates' Overseas Study Program of China Scholarship Council (CSC)

Effect of Distributor Design on Gas-Liquid Distribution in Monolithic Bed at High Gas/Liquid Ratios

周媛¹, AL-DAHHAN Muthanna², DUDUKOVIC Milorad³, 刘辉¹

1. Beijing University of Chemical Technology, Beijing 100029, China;
2. Missouri University of Science and Technology, Rolla, MO 65409, USA;
3. Washington University in St.Louis, MO 63130, USA

通讯作者: AL-DAHHAN Muthanna, E-mail:aldahhanm@mst.edu;LIU Hui, E-mail:hliu@mail.buct.edu.cn
基金资助:
Supported by the State-funded Postgraduates' Overseas Study Program of China Scholarship Council (CSC)

Abstract

Abstract: Experiments were carried out to investigate the liquid flow distribution at high gas/liquid ratios in a cold model monolith bed of a 0.048 m diameter with 62 cells per cm².Three types of distributor for the liquid distribution were used to evaluate their distribution performance.Local liquid saturation in individual channels was measured using 16 single-point optical fiber probes mounted inside the channels.The results indicate that 1) The optical fiber probe technique can measure phase distribution in the monolith bed;2) Liquid saturation distribution along the radial direction of the monolith bed is not uniform and the extent of non-uniformity depends on the distributor design and phase velocities;and 3) The tube array distributor provides superior liquid distribution performance over the showerhead and nozzle distributors.

Key words: monolith reactor, phase distribution, optical fiber probe, liquid saturation

摘要： Experiments were carried out to investigate the liquid flow distribution at high gas/liquid ratios in a cold model monolith bed of a 0.048 m diameter with 62 cells per cm².Three types of distributor for the liquid distribution were used to evaluate their distribution performance.Local liquid saturation in individual channels was measured using 16 single-point optical fiber probes mounted inside the channels.The results indicate that 1) The optical fiber probe technique can measure phase distribution in the monolith bed;2) Liquid saturation distribution along the radial direction of the monolith bed is not uniform and the extent of non-uniformity depends on the distributor design and phase velocities;and 3) The tube array distributor provides superior liquid distribution performance over the showerhead and nozzle distributors.

关键词: monolith reactor, phase distribution, optical fiber probe, liquid saturation

ZHOU Yuan, AL-DAHHAN Muthanna, DUDUKOVIC Milorad, LIU Hui. Effect of Distributor Design on Gas-Liquid Distribution in Monolithic Bed at High Gas/Liquid Ratios[J]. Chin.J.Chem.Eng., 2012, 20(4): 693-700.

周媛, AL-DAHHAN Muthanna, DUDUKOVIC Milorad, 刘辉. Effect of Distributor Design on Gas-Liquid Distribution in Monolithic Bed at High Gas/Liquid Ratios[J]. Chinese Journal of Chemical Engineering, 2012, 20(4): 693-700.

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Effect of Distributor Design on Gas-Liquid Distribution in Monolithic Bed at High Gas/Liquid Ratios

Effect of Distributor Design on Gas-Liquid Distribution in Monolithic Bed at High Gas/Liquid Ratios

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