Comparative Study of Membrane and Absorption Processes Performance and their Economic Evaluation for CO۲ Capturing from Flue Gas
Publish place: Gas Processing، Vol: 7، Issue: 2
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_GPJU-7-2_003
تاریخ نمایه سازی: 23 مرداد 1400
Abstract:
As the main aim of this study, simulation and economic assessment of membrane technologies in comparison absorption process for CO۲capturing from specified flue gas was conducted. For this purpose, the PRO/II v.۱۰ software and Aspen Process Economic Analyzer v.۱۰ were used. In this simulation, the flue gas flow rate is ۸۱۶۲ kmole/h and the concentration of CO۲ in flue gas is ۸-۲۲% mole. The objective function in the simulation of CO۲ capturing is to remove ۸۵% of CO۲ from the flue gas stream. The amount of required solvent and membrane surface, as well as various costs such as equipment costs, installed costs, total capital cost, total utility cost and total operating cost for different concentrations of CO۲ in flue gas (۸-۲۲% mol.) was assessed for both membrane-based and absorption-based units. For CO۲ selectivity and permeability values of ۲۸ and ۱۰۹۷ barrer, respectively, the total capital cost in the membrane-based process is very higher than the absorption process. So, the total capital cost of the membrane unit was about ۲.۳ times higher than the total capital cost of the absorption process. In a low concentration of CO۲, the total utility cost and total operating cost of the membrane-based process were about ۲.۲ times higher than the absorption process. However, by increasing the CO۲ concentration the difference between these costs in two processes decreased. By analyzing the selectivity effects on the total capital costs, it is obtained that with a selectivity value of ۲۸۰ and the same permeability the costs of the membrane-based process became comparable to the costs of the absorption process.
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Authors
Mostafa Jafari
Department of Chemical Engineering, University of Tehran, Tehran, Iran
Kamran Ghasemzadeh
Faculty of Chemical Engineering, Urmia University of Technology, Urmia, Iran
Taher Yusefi Amiri
Department of chemical engineering, Faculty of Engineering, University of Zanjan, Zanjan, Iran
Angelo Basile
ITM-CNR, c/o University of Calabria, via P. Bucci cubo ۱۷/C, ۸۷۰۳۶ Rende (CS), Italy
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