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›› 2001, Vol. 1 ›› Issue (3): 0-0.

• 3 •    

Experimental Investigation of Pressure Drop Hysteresis in a Cocurrent Gas–Liquid Upflow Packed Bed

XU Hong-bin, MAO Zai-sha   

  1. Institute of Chemical Metallurgy，Chinese Academy of Sciences，Beijing l00080, China
  • 出版日期:2001-06-20 发布日期:2001-06-20

Preliminary Study on the Reaction of Bentonite and Alkalis

CAO Ji-lin1, ZHANG Yong-jie1, LI Lin2, DI Li-hui1, ZHANG Li-jing1, SONG Bao-jun1   

  1. Institute of Chemical Metallurgy，Chinese Academy of Sciences，Beijing l00080, China
  • Online:2001-06-20 Published:2001-06-20

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摘要： Extensive experimental work on hysteresis in a cocurrent gas–liquid upflow packed bed was carried out with three kinds of packings and the air–water system. However, only when packed with small glass beads (f1.4 mm) was the bed pressure drop hysteresis observed. Two more liquids with different liquid properties were employed to further examine the influence of parameters on pressure drop hysteresis. The similarity of pressure drop hysteresis in packed beds was concluded in combination of experimental evidence reported in literature.

关键词: gas/liquid/solid packed column, cocurrent upflow, pressure drop hysteresis, experimental investigation

Abstract: Extensive experimental work on hysteresis in a cocurrent gas–liquid upflow packed bed was carried out with three kinds of packings and the air–water system. However, only when packed with small glass beads (f1.4 mm) was the bed pressure drop hysteresis observed. Two more liquids with different liquid properties were employed to further examine the influence of parameters on pressure drop hysteresis. The similarity of pressure drop hysteresis in packed beds was concluded in combination of experimental evidence reported in literature.

Key words: bentonite, solid reaction, thermogravimetry, sodium carbonate, sodium hydroxide

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