A Comprehensive Review on Advantages and Issues of Nanotechnology in the Oxidative Desulfurization Method for the Production of Ultra-Clean Fuels

Document Type : Review Article


1 M.Sc., Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, P.O. Box 98164-161, Zahedan, Iran

2 Assistant Professor, Department of chemical engineering, Faculty of engineering, University of Sistan and Baluchestan, P.O. Box 98164-161, Zahedan, Iran



Today, producing clean fuel oil is one of the major challenges in the world. One of the factors that causes environmental pollution is the sulfur compounds in crude oil. In today's world, there are strict rules for reducing the amount of sulfur in fuel. There are several ways to remove sulfur compounds from fuels, such as hydrodesulfurization (HDS), extractive distillation, biodesulfurization, adsorption desulfurization, and oxidative desulfurization (ODS). Some refractory sulfur compounds that are not removed from the fuel oil by the HDS can be easily removed by oxidation method. Nowadays, the ODS method is known as a complement to the HDS method. In the oxidation method, sulfur compounds are converted to the corresponding sulfonates by catalysts and oxidants and then separated from the feed by polar solutions or adsorbents. Various researches have been done on the Catalysts and oxidants of the ODS method. In this study, a comprehensive review has been carried out on the application of nanotechnology in the oxidative desulfurization method. Based on previous researches and available articles, nanocatalysts used in the oxidation process can be classified into five groups; polyoxometalates, transition metal oxide, carbon materials, ionic liquids and metal-organic frameworks (MOF). Also, different nanocatalysts and oxidants and optimal conditions to achieve the highest conversion percentage for the removal of sulfur compounds were investigated.


Main Subjects

Article Title [Persian]

مروری جامع بر مزایا و مسائل نانوتکنولوژی در روش گوگردزدایی اکسایشی برای تولید سوخت‌های فوق تمیز

Authors [Persian]

  • زهرا مباشری 1
  • سید حسین زهدی فسائی 2

1 دانشجوی کارشناسی ارشد، گروه مهندسی شیمی، دانشکده مهندسی شهید نیکبخت، دانشگاه سیستان و بلوچستان، زاهدان، ایران، صندوق پستی ۹۸۱۵۵-۱۶۱

2 استادیار، گروه مهندسی شیمی، دانشکده مهندسی شهید نیکبخت، دانشگاه سیستان و بلوچستان، زاهدان، ایران، صندوق پستی ۹۸۱۵۵-۱۶۱

Abstract [Persian]

امروزه تولید سوخت پاک یکی از چالش‌های بزرگ در جهان است. یکی از عواملی که باعث آلودگی محیط‌زیست می‌شود، ترکیبات گوگردی موجود در نفت خام است. در دنیای امروز قوانین سخت‌گیرانه‌ای برای کاهش میزان گوگرد در سوخت وجود دارد. روش‌های مختلفی برای حذف ترکیبات گوگرد از سوخت‌ها وجود دارد، مانند گوگردزدایی هیدروژنی (HDS)، تقطیر استخراجی، گوگردزدایی زیستی، گوگردزدایی جذبی و گوگردزدایی اکسایشی (ODS). برخی از ترکیبات گوگردی که توسط روش گوگردزدایی هیدروژنی از سوخت حذف نمی‌شوند را می‌توان به‌راحتی با روش اکسیداسیون حذف کرد. امروزه روش گوگردزدایی اکسایشی به‌عنوان مکمل روش گوگردزدایی هیدروژنی شناخته می‌شود. در روش گوگردزدایی اکسایشی، ترکیبات گوگردی توسط کاتالیزورها و اکسیدکننده‌ها به سولفونات‌های مربوطه تبدیل می‌شوند و سپس توسط محلول‌ها یا جاذب‌های قطبی از خوراک جدا می‌شوند. تحقیقات مختلفی بر روی کاتالیزورها و اکسیدکننده‌های روش گوگردزدایی اکسایشی انجام شده است. در این مطالعه مروری جامع بر روی کاربرد نانوتکنولوژی در روش گوگردزدایی اکسایشی انجام شده است. بر اساس تحقیقات قبلی و مقالات موجود، نانوکاتالیست‌های مورد استفاده در فرآیند اکسیداسیون را می‌توان به پنج گروه طبقه‌بندی کرد: پلی اکسومتالات‌ها، اکسید فلزات واسطه، مواد کربنی، مایعات یونی و چارچوب‌های فلزی-آلی (MOF). همچنین نانوکاتالیست‌ها و اکسیدکننده‌های مختلف و شرایط بهینه برای دستیابی به بالاترین درصد تبدیل برای حذف ترکیبات گوگردی مورد بررسی قرار گرفت.

Keywords [Persian]

  • نانوکاتالیست
  • گوگردزدایی اکسایشی
  • نفت کوره
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