Design of MultiComponent Distillation Column by Approximate & Rigorous Method using MATLAB

This is chemical engineering project report on design of multi component distillation column by approximate and rigorous method using MATLAB. This project describes the methodology to separate three components (hexane, heptane and octane) by approximate and rigorous method. Approximate method includes three steps for the calculation of minimum stages, minimum reflux ratio and calculation of actual number stages for the distillation column. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such projects and seminar.

The creation of a mixture of chemical species from the separate species is a spontaneous process that requires no energy input. The inverse process, separation of a chemical mixture into pure components, is not a spontaneous process and thus requires energy. A mixture to be separated may be single or multiphase. If it is multiphase, it is usually advantageous to first separate the phases.

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The feed and products may be vapor, liquid, or solid; one or more separation operations may be taking place; and the products differ in composition and may differ in phase. In each separation operation, the mixture components are induced to move into different, separable spatial locations or phases by any one or more of the five basic separation methods.

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Generally, chemical process industries involve distillation of a mixture of several components rather than that of a binary mixture. Designing by approximate and rigorous method gives an initial analysis of a multi component distillation column design. To start designing with these methods, distillate and bottom recoveries must be pre decided.

Approximate method gives minimum number of stages, minimum reflux ratio, actual reflux ratio and ideal number of stages. Rigorous method gives temperature and concentration of component on each tray. The results obtained from these methods are than analyzed to determine the correct specifications for the operations of a real distillation column. This is done by experience from past or from literature work.


Author:- Ganga Rautela, Nirmala Bhatt, Nisha Bhutt, Ravisha Goswami, Mamta Nainwal


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