Simulation of Heat Integrated Multi-effect Distillation Columns

سال انتشار: 1386
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,325

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شناسه ملی سند علمی:

ICHEC05_027

تاریخ نمایه سازی: 7 بهمن 1386

چکیده مقاله:

Heat integration of distillation columns with focus on multi-effect distillation, where the column pressures are adjusted such that the cooling (energy removal) in one column can be used as heating (energy input) in another column, is studied in this paper. The emphasis of the work is on the energy savings of such arrangements, looked at mainly in terms of capital and operating costs. Two cases have been simulated using a rigorous simulation program to verity the results, a non-integrated base case and a multi-effect arrangement. Then two distillation columns in sequence have been studied to see if it was suitable for integration using a multi-effect arrangement in order to reduce costs and also the effect of changing pressure, reflux ratio, number of trays and other parameters are considered on design and costs. Based on theoretical considerations and economically evaluated rigorous case studies for ternary mixtures it is demonstrated that multi-effect distillation has a much lower overall energy requirement and total cost than a conventional distillation arrangement.

کلیدواژه ها:

Distillation column sequencing- Heat integration- Multi effect distillation- Utility optimization

نویسندگان

Salahi

Computer Aided Process Engineering Lab (CAPE), Department of Chemical Engineering, Iran University of Science and Technology, IUST, Tehran, Iran

Kasiri

Computer Aided Process Engineering Lab (CAPE), Department of Chemical Engineering, Iran University of Science and Technology, IUST, Tehran, Iran

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