]*>","")" /> 规整填料在加压精馏中的传质性能

CIESC Journal

• 化工学报 • 上一篇    下一篇

规整填料在加压精馏中的传质性能

刘春江,王利东,袁希钢,余国琮   

  1. 天津大学化学工程研究所、国家重点精馏分离实验室!天津300072,天津大学化学工程研究所、国家重点精馏分离实验室!天津300072,天津大学化学工程研究所、国家重点精馏分离实验室!天津300072,天津大学化学工程研究所、国家重点精馏分离实验室!天津300072
  • 出版日期:2001-01-25 发布日期:2001-01-25

MASS TRANSFER CHARACTERISTICS IN HIGH PRESSURE DISTILLATION COLUMN PACKED WITH STRUCTURED PACKING

LIU Chunjiang,WANG Lidong, YUAN Xigang and YU Guocong(K. T. Yu) (Chemical Engineering Research Center, Tianjin University, Tianjin?300072,China)   

  • Online:2001-01-25 Published:2001-01-25

Abstract: Experiments were conducted in the high pressure distillation column containing corrugated structured packing of Mellapak 250Y under operating pressure from 0.3 MPa to 2 MPa, using n -butane and n -pentane mixture as the separating material. The height equivalent to a theoretical plate (HETP) was evaluated from the measured n -butane liquid concentration profile along the packing. After carefully analyzed, the HETP may be reasonably divided into two parts. The first part is the ideal height of mass transfer unit, which is caused by the mass transfer resistance between vapor and liquid. Another part is the height of backmixing unit (HBU), which is caused by the backmixing of vapor and liquid. The parameters of HBU correlation were evaluated by the experimental data. The present HETP correlation was used to predict the experimental results in literature, and well agreement was found between them.

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