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

• 作者: 徐红彬 毛在砂
• 来源期刊: 过程工程学报
• 学科: 工学
• 关键词: gas/liquid/solid packed column cocurrent upflow pressure drop hysteresis experimental investigation
• 年，卷（期）: 2001,（3）
• 所属期刊栏目: 流动与传递
• 页码范围: 239-242
• 页数: 4页
• 分类号: TQ053.5
• 语种: 中文
• DOI: 10.3321/j.issn:1009-606X.2001.03.003

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 (φ1.4 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.