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

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• 作者：Yuan ZHOU ; Muthanna AL-DAHHAN ; Milorad DUDUKOVIC ; Hui LIU
• 关键词：monolith reactor ; phase distribution ; optical fiber probe ; liquid saturation
• 刊名：Chinese Journal of Chemical Engineering
• 出版年：2012
• 出版时间：August, 2012
• 年：2012
• 卷：20
• 期：4
• 页码：693-700
• 全文大小：339 K

文摘

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.