A Short-Cut Approach on Batch Distillation Column Design


To overcome the uncertainty shortcomings that the batch distillation column design must be derived from an empirical or semi-empirical method in many cases, a new shortcut design approach is proposed to determine the number of theoretical and actual plates and the height of the batch distillation column. The effects of batch distillation column equipment characteristics on yield proportion are examined and studied, as well as the relationships between maximal yield proportion and column equipment parameters. With the help of the separation difficulty defined, the limit loss proportion method determines the minimum number of theoretical plates, and the actual number of theoretical plates and height are calculated using the redundancy coefficient found to complete the whole design as shown in the computational sample. According to research, the actual number of theoretical plates and the height of a batch distillation column with a column diameter of 0.6 m in an alcohol mixture separation system of the example supplied are 17 and 5.1 m, respectively. Furthermore, after treating neighbouring components as multiple binary component systems, the technique may be applied to the construction of batch distillation columns with a multi-component liquid mixture separation system. Finally, based on the concept presented, recent trends in the extension and application of separation difficulty in separation engineering investigation areas are expounded, and potential hot spots such as the relationships between the entropy value and separation difficulty for a hybrid system are predicted.

Author(s) Details:

Wenfeng Hao,
Department of Applied Chemistry, School of Renewable Energy, Shenyang Institute of Engineering, Shenyang 110136, China and  Graduate School, School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China and  Liaoning Key Laboratory of Chemical Separation Technology, College of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110136, China and  Center for Natural Gas Hydrate Research, CAS Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China and State Key Laboratory of Fine Chemicals, Institute of Adsorption and Inorganic Membrane, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China.

Please see the link here: https://stm.bookpi.org/PCSR-V1/article/view/6757

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