小颗粒滴流床反应器中持液量及液相轴向扩散

CIESC Journal

小颗粒滴流床反应器中持液量及液相轴向扩散

葛世英,李盘生,梁之荣,闵恩泽

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

出版日期:1989-06-25 发布日期:1989-06-25

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)

Online:1989-06-25 Published:1989-06-25

摘要/Abstract

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:

葛世英,李盘生,梁之荣,闵恩泽. 小颗粒滴流床反应器中持液量及液相轴向扩散 [J]. CIESC Journal.

Liang Zhirong, Ge Shiying, Min Enze and Li Pangsheng (East China Institute of Chemical Technology, Shanghai). Liquid Holdup and Axial Dispersion in Trickle Bed Reactor[J]. .