Intensification of liquid fuel production using Nano Fe Catalyst in GTL process

Document Type : Original Article

Authors

1 GAS Doctor of Engineering, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

2 Rasht Branch, Islamic Azad, Rasht, Iran

3 Research Institute of Petroleum Industry (RIPI), Tehran, Iran

20.1001.1.25885596.2020.5.1.4.4

Abstract

An experimental and computational fluid dynamic (CFD) investigation was carried out to intensify the production of gasoline in a bench-scale Fischer –Tropsch Synthesis (FTS) process. A cylindrical reactor with one preheating and one reaction zone was employed. The reactor temperature was controlled using a heat jacket around the reactor’s wall and dilution of the catalyst in the entrance of the reaction zone.  An axi-symmetric CFD model was developed and the non-ideality of the gas mixture was considered using Peng-Robinson equation of state. A kinetic model based on 25 chemical species and 23 reactions was utilized. The model validated against experimental measurements and the validated model employed to investigate the effects of operating conditions on the performance of the reactor. The optimum values of operating conditions including pressure, reactor temperature, GHSV and H2/CO ratio were determined for maximum reactor performance.

Keywords

Main Subjects

Article Title [فارسی]

افزایش راندمان تولید سوخت مایع با استفاده از کاتالیست نانو آهن در فرآیند تبدیل گازطبیعی به مایع

Authors [فارسی]

  • محمد ایرانی 1
  • ‌اصغر علیزاده داخل 2
  • یحیی زمانی 3

1 دکترای مهندسی گاز، پژوهشگاه صنعت نفت،‌ تهران،‌ ایران

2 گروه شیمی و مهندسی شیمی، واحد رشت، دانشگاه آزاد اسلامی،‌ رشت،‌ ایران

3 پژوهشگاه صنعت نفت،‌ تهران،‌ ایران

Abstract [فارسی]

در این مقاله یک بررسی تجربی و مطالعه CFD با هدف افزایش تولید بنزین با استفاده از فرآیند فیشر- تروپش در یک رآکتور در مقیاس رومیزی (بنچ) انجام گرفت. یک رآکتور استوانه‌ای با یک منطقه پیش گرمکن و یک منطقه واکنش بکار گرفته شد. دمایی رآکتور با استفاده از یک گرمکن کمربندی دور رآکتور، کنترل گردید. همچنین یک مدل CFD با تقارن و در نظرگرفتن غیر ایده‌آلی مخلوط گازی با استفاده از معادله حالت پنگ –رابینسون، توسعه داده شد. تعداد واکنش‌های به کار گرفته شده برای این مدل ۲۳ مورد بود. مدل توسعه داده شده با اطلاعات تجربی اعتبارسنجی گردید. مدل تایید شده برای بررسی اثر شرایط عملیاتی روی کارکرد رآکتور استفاده شد. مقادیر بهینه شرایط عملیاتی شامل فشار، دما، GHSV  ونسبت خوراک برای کارکرد بهینه رآکتور بدست آمدند.

Keywords [فارسی]

  • سنتز فیشر-تروپش
  • جی تی ال
  • رآکتور بستر ثابت
  • کاتالیست نانو آهن
  • سی اف دی
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