Design and Mass Transfer Characteristics of Rotating Screw Brush Horizontal Distillation Column

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Makoto Mizutani¹  Hirotake Katayama¹  Takeshi Kobayash¹ 

[1] Department of Materials Chemistry, Hosei University

关键词: Distillation;    Separation Efficiency;    Pressure Drop;    Liquid Holdup;    Rotary Packing;   

DOI  :  10.1252/jcej.33.689

来源: Maruzen Company Ltd

【 摘 要 】

References(14)Cited-By(5)A distillation column with an adjustable slope horizontal rectification section was constructed. A rotating screw brush was inserted into the section, which could be rotated from 0 to 600 rpm with an external motor.Distillation experiments were carried out using the system cyclohexane-heptane at total reflux at slopes of 0 (horizontal), 5 and 10 degrees. Separation efficiency for the horizontal column was the highest of the three orientations, and was obtained as HETP from 0.04 to 0.16 m at F-factor of 0.05 to 0.4 m/s(kg/m3)1/2 in the range of 100 to 600 rpm. The HETP for each slope was roughly constant at a rotation speed of more than 300 rpm.The values of the pressure drop were found to be equivalent to those of one seventh to one fifth of conventional packed columns.

【 授权许可】

Unknown