استفاده از نانوذرات مغناطیسی عامل‌دار شده با مایعات یونی جهت حذف ترکیبات گوگردی آروماتیک بنزین

نوع مقاله: مقاله پژوهشی

نویسندگان

پژوهشگاه صنعت نفت، گروه تجزیه و ارزیابی مواد

چکیده

در سال‌های اخیر قوانین سخت گیرانه‌ای جهت کاهش میزان گوگرد در سوخت‌ها به تصویب رسیده است. فناوری استفاده از نانوذرات مغناطیسی اکسید آهن در حذف آلاینده‌ها حرکت جدیدی است که نسبت به روش‌های قبلی اقتصادی‌تر و کارآمدتر می‌باشد. در این تحقیق، نانوجاذب مغناطیسی جدیدی از طریق اصلاح سطح نانوذرات اکسید آهن توسط مایع یونی سنتز گردید و جهت حذف مغناطیسی ترکیبات گوگردی آروماتیک از بنزین مورد مطالعه و بررسی قرار گرفت. خصوصیات نانوجاذب توسط روش‌‌‌های پراش اشعه XRD) X)، میکروسکوپ الکترونی عبوری (TEM) و طیف‌سنجی مادون قرمز تبدیل فوریه (FTIR) بررسی گردید. در ادامه، عوامل مؤثر بر فرآیند گوگردزدایی بهینه شد و تحت شرایط بهینه، مطالعات بر روی یک نفت الگو و یک نمونه‌ واقعی انجام شد. نتایج نشان داد که مایع یونی تثبیت شده، قابلیت حذف ترکیبات گوگردی آروماتیک را دارا بوده و یک جاذب مناسب جهت گوگردزدایی عمیق محسوب می‌شود. نانوجاذب استفاده شده از طریق اعمال میدان مغناطیسی و شستشو با حلال تتراکلریدکربن قابلیت احیا شدن و استفاده مجدد را داراست.

کلیدواژه‌ها


عنوان مقاله [English]

Application of Magnetic Nanoparticles Functionalized with Ionic Liquids for the Removal of Aromatic Sulfur Containing Compounds from Gasoline

نویسندگان [English]

  • Tahereh Poursaberi
  • Mostafa Hassanisadi
  • Kamran Torkestani
  • Elgam KarimiZand
Research Institute of Petroleum Industry (RIPI)
چکیده [English]

During recent years some strict regulations are established to reduce the sulfur content of the fuels. Magnetic iron oxide nanotechnology has started a new trend which is more efficient and economic than the conventional methods. Herein, the magnetic removal of aromatic sulfur compounds from gasoline has been investigated. In the present work, a novel magnetic nanosorbent through surface modification by an ionic liquid was synthesized and characterized by XRD, TEM, and FTIR techniques. Effective parameters were optimized and studies were carried out on a model oil and a real sample under optimal conditions. It was found that the supported ionic liquid was well efficient in the removal of aromatic sulfur containing compounds and was a promising sorbent in deep desulfurization treatments. The used sorbent could be regenerated through convenient magnetic decantation and stripping by carbon tetrachloride.

کلیدواژه‌ها [English]

  • Ionic liquid
  • Magnetite
  • Gasoline
  • Desulfurization
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