Abstract

Binary distillation in continuous contact equipment is an important section in the oil refinery. In order to provide information about the temperature of the phases as well as the compositions, the heat and mass transfer that are nonlinear should be solved simultaneously. In this research, the heat and mass transfer of the binary distillation in a vertical wetted wall column is solved using the Adomian Decomposition Method (ADM). To this aim, the three nonlinear equations of momentum, energy and mass transfer are solved simultaneously. The recursive relations and the Adomian polynomials are programmed in the Maple environment computer package with the accuracy digits set to 14 for the numerical calculation. Results of the ADM analysis are in agreement with the experiment data. The Effects of the Prandtl and Schmidt numbers on the temperature and the concentration distribution profiles are presented and discussed. The distribution of temperature was revealed shown to increase with an the increase of in the Prandtl number of the vapor, and distribution of while the concentration was demonstrated to decrease with the an increase in Schmidt number.

中文翻译：

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立式湿壁塔中通过Adomian分解法研究二元蒸馏的传输现象

摘要

连续接触设备中的二元蒸馏是炼油厂的重要环节。为了提供有关相的温度以及组成的信息，应同时解决非线性的传热和传质问题。在这项研究中，使用Adomian分解法（ADM）解决了立式湿壁塔中二元蒸馏的传热传质问题。为此，同时求解了动量，能量和质量传递的三个非线性方程。递归关系和Adomian多项式在Maple环境计算机软件包中进行编程，其精度数字设置为14以进行数值计算。ADM分析的结果与实验数据一致。提出并讨论了Prandtl和Schmidt数对温度和浓度分布曲线的影响。揭示出温度分布显示出随着蒸气的Prandtl数的增加而增加，而温度分布显示出浓度的随着施密特数的增加而减少。