A Theoretical Study of the Falling Film Molecular Still

余国琮; 樊丽秋

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A Theoretical Study of the Falling Film Molecular Still

更新时间：2025-12-16

- A Theoretical Study of the Falling Film Molecular Still
- CIESC Journal Issue 1, (1979)
- 作者机构：
  
  天津大学化工系,沈阳化工学院化机系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 1979，
  
  Published：25 September 1979
- 稿件说明：
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余国琮, 樊丽秋. A Theoretical Study of the Falling Film Molecular Still[J]. CIESC Journal, 1979, (1).
DOI：

余国琮, 樊丽秋. A Theoretical Study of the Falling Film Molecular Still[J]. CIESC Journal, 1979, (1). DOI：

摘要

本篇结合传质微分方程

提出降膜式分子蒸馏设备的一维（径向）与二维（径向与轴向）扩散两种数学模型并求得其解。这两种数学模型的解析解与计算机解均与文献上的实验数据基本相符。文中并讨论了影响降膜式分子蒸馏器设计与操作的各种因素。

Abstract

Based on the partial differential equation of mass transfer

one dimensional (radical) and two dimensional (radical and axial) diffusion models of the falling film molecular still are developed and solved. The results of both analytical solutions and digital computations of these two models are on the whole in agreement with the experimental data taken from literatures. Factors affecting the design and operation of a falling film molecular still are discussed.

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