بررسی مایعات یونی و سایر عوامل مؤثر بر فرایند گوگردزدایی اکسیداسیونی

نوع مقاله: علمی ترویجی

نویسندگان

1 مدیر پروژه/ پژوهشگاه صنعت نفت

2 کارشناس ارشد فرایند/ پژوهشگاه صنعت نفت

3 پژوهنده ارشد/ پژوهشگاه صنعت نفت

چکیده

احتراق محصولات نفت خام مانند گازوئیل و بنزین موجب مشکلات جدی و گسترده و آلودگی‌های زیست محیطی می‌شوند. یکی از اهداف مهم در پالایشگاه‌ها حذف گوگرد یا تبدیل مواد گوگردی به مواد بی‌ضرر است و مقررات سخت‌گیرانه‌ای برای به حداقل رساندن این آلاینده‌ها از قبیل اکسیدهای گوگردی در نظر گرفته‌شده‌ است. از روش‌های کاهش ترکیبات گوگردی در فراورده‌های نفتی می‌توان به گوگردزدایی هیدروژنی گوگردزدایی جذبی ، گوگردزدایی بیولوژیکی و گوگردزدایی اکسیداسیونی اشاره نمود. در میان انواع روش‌های اشاره شده فرایند گوگردزدایی اکسیداسیونی به دلیل سادگی فرایند، عدم نیاز به هیدروژن، شرایط عملیاتی ملایم و هزینه نسبتاً کمتر موردعلاقه بسیاری از محققین قرارگرفته است. در این مقاله به کاتالیست‌ها و مایعات یونی استفاده‌شده در این فرایند و همچنین درصد گوگردزدایی آن‌ها در شرایط مختلف عملیاتی به‌صورت گسترده پرداخته‌شده است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigation of ionic liquids and other effective parameters on oxidative desulfurization process

نویسندگان [English]

  • Khashayar Sharifi 1
  • Mostafa Sepah vandi 2
  • Behrouz Nonahal 3
1 Project Manager/Research Institute of Petroleum Industry
2 Senior Process engineer/ Research Institute of Petroleum Industry
3 Senior Researcher/ Research Institute of Petroleum Industry
چکیده [English]

Combustion of crude oil products such as gasoline and gasoil cause serious and extensive environmental pollution. One of the main objectives in refineries is to eliminate sulfur or to convert sulfur compounds to harmless materials and strict restrictions have been introduced on the reduction of emission of pollutants such as sulfur oxide. Nowadays, various methods of sulfur reduction processes are being used in petroleum cuts: hydrodesulfurization (HDS); adsorption desulfurization (ADS); biodesulfurization (BDS); oxidative desulfurization (ODS). Among the mentioned methods, researchers have shown a great interest in oxidative desulfurization (ODS) method because of simplicity of the process, no need of hydrogen, moderate operational condition and less capital and operational cost. In this article a thorough and comparative investigation has been made on using different catalysts and ionic liquids on the performance of oxidation process and percentage rate of desulfurization in various operating conditions.

کلیدواژه‌ها [English]

  • Desulfurization oxidation
  • catalyst
  • Ionic liquid
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