جداسازی دی اکسیدکربن/ نیتروژن با استفاده از غشای آلیاژی ABS/PEG

نوع مقاله: مقاله پژوهشی

چکیده

میزان گاز گلخانه‌ای دی اکسیدکربن در اتمسفر زمین رو به افزایش می‌باشد. جداسازی این گاز از منابع اصلی تولید کننده آن نظیر نیروگاه‌ها، صنایع فولاد و سایر صنایع شیمیایی به‌دلیل افزایش اثرات مخرب گازهای گلخانه‌ای مورد توجه فراوانی قرار گرفته است. در این راستا، با توجه به مزایای غشاهای پلیمری برای جداسازی گازها به روش آلیاژسازی، غشاهای آلیاژی از اکریلونیتریل-بوتادین-استایرن (ABS) و پلی اتیلن گلایکول (PEG) تهیه شده است. سپس اثر افزودن ترکیب درصدهای مختلف پلی اتیلن گلایکول افزوده شده به ABS بر تراوایی و گزینش‌پذیری گازهای دی اکسیدکربن و نیتروژن، بررسی گردید. همچنین، اثر فشار بر تراوایی دی اکسیدکربن مورد مطالعه قرار گرفت. نتایج حاصل نشان می‌دهد که تراوایی دی اکسیدکربن در غشای آلیاژی ساخته شده از ABS و 10 درصد وزنی 20000PEG، دارای مطلوب‌ترین خواص جداسازی بوده و میزان تراوایی دی اکسیدکرین و گزینش پذیری دی اکسیدکربن/نیتروژن آن در مقایسه با غشای ABS افزایش مطلوبی یافته است.

کلیدواژه‌ها


عنوان مقاله [English]

Separation of CO2/N2 by ABS/PEG Blend Membrane

چکیده [English]

Greenhouse CO2 gas content is increasing in the atmosphere. Separation of CO2 from emission sources generated by power plants, steel works and various chemical industries has attracted global attention as a result of the enhanced greenhouse destructive effects. Considering the advantages of gas separation polymeric membranes by blending method for membrane preparation, acrylonitrile-butadiene-styrene/Poly (ethylene glycol) blend membranes have been prepared. Then, the effect of incorporating different PEG contents into ABS on the permeability/selectivity of CO2/N2 was investigated. Additionally, the effect of pressure on CO2 permeability has been studied. The results showed that CO2 permeability in the ABS/PEG20000 (10 wt %) had the most suitable gas separation properties. In addition, the CO2 permeability and CO2/N2 selectivity values of this membrane increased significantly in comparison with neat ABS membrane

کلیدواژه‌ها [English]

  • Separation
  • Carbon Dioxide/Nitrogen
  • Permeability
  • Blend Membrane
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