CO Separation from Syngas by Multiwall Carbon Nanotube
سال انتشار: 1390
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 931
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شناسه ملی سند علمی:
JR_IJEE-3-1_006
تاریخ نمایه سازی: 1 اردیبهشت 1393
چکیده مقاله:
In this study the equilibrium uptakes of hydrogen and carbon dioxid as the main constituents of syngas by the multi-walled carbon nanotube (MWCNT) were investigated at the temperature range of 288-318K and pressure up to 40 bars. The results have shown that temperature had much less effect on the adsorptionof H on MWCNT than adsorption of CO . Several model isotherms such as Langmuir and Freundlich were 2 2 examined to fit the equilibrium uptake data. The kinetics of H and CO adsorption on MWCNT were also 2 2 investigated and the results revealed a fast sorption kinetic for both gas adsorption on MWCNT. Isosteric heatof adsorption was evaluated based on the Clausius-Clapeyron equation at different temperatures. Small valuesof isosteric heat of adsorption confirmed that although the adsorption of H and CO on MWCNT were 2 2 exothermic, but the heat of adsorption was too low, therefore the process of adsorption of both gases on the MWCNT used in this study is physisorption.
کلیدواژه ها:
نویسندگان
Soodabeh Khalili
Department of Chemical Engineering, Babol University of Technology, Babol, Iran
Ali Asghar Ghoreyshi
Department of Chemical Engineering, Babol University of Technology, Babol, Iran
Mohsen Jahanshahi
Department of Chemical Engineering, Babol University of Technology, Babol, Iran