شبیه‌سازی استخراج ترکیبات آروماتیکی از برش روغنی در تماس دهنده دیسک دوار

نوع مقاله : پژوهشی

نویسندگان

1 استاد مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اراک، اراک

2 دکتری مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اراک، اراک

3 کارشناسی ارشد مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اراک، اراک

چکیده

در این تحقیق، فرآیند استخراج مایع-مایع آروماتیک‌ها از روغن روانکار SAE 30 توسط فورفورال با استفاده از خواص فیزیکی (چگالی، وزن مخصوص و ضریب شکست) شبه جزء (پارافین، نفتن و آروماتیک) و پارامترهای مدل NRTL مورد مطالعه قرار گرفته است. دمای استخراج (348 و 338، 328 درجه کلوین) و نسبت حجمی حلال به خوراک (1، 4 و 7) به منظور تعیین مقادیر بهینه بررسی شدند. نتایج مدل‌سازی نشان داد که با افزایش نسبت حلال به خوراک و دمای استخراج، درصد وزنی فورفورال و بازده فاز باقیمانده کاهش می‌یابد. دقت مدل با شبیه‌سازی استخراج تک مرحله‌ای و با استفاده از نرم افزار ASPEN HYSYS سنجیده شد. توافق خوبی میان مقادیر پیش‌بینی شده و آزمایشگاهی بازده، میزان فورفورال، درصد ترکیبات و خواص فیزیکی فاز باقیمانده و استخراج‌ شده حاصل شد. حداکثر خطا بین مقادیر محاسبه شده و مقادیر صنعتی ترکیبات شبه جزء کمتر از %2 است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Simulation of Aromatic Compounds Extraction from Lube Cut in Rotating Disc Contactor

نویسندگان [English]

  • Alireza Fazlali 1
  • Vahab Ghaleh Khondabi 2
  • Abas Nazari 3
1 Professor of Chemical Engineering, Faculty of Engineering, Arak University, Arak
2 Professor of Chemical Engineering, Faculty of Engineering, Arak University, Arak
3 M. Sc. of Chemical Engineering, Faculty of Engineering, Arak University, Arak
چکیده [English]

In this investigation, the liquid-liquid extraction process of aromatics from SAE 30 lube oil by furfural using the calculated physical properties (density, specific gravity, and refractive index) of pseudo-component (paraffinic, naphthenic, and aromatic) and the NRTL parameters has been studied. The extraction temperature (328, 338, and 348 °K) and the solvent to feed volume ratios (1, 4, and 7) were examined in order to determine their optimum values. The modeling results demonstrated that by increasing the solvent to feed ratio and the extraction temperature, the weight percentage of furfural and the yield of raffinate phase decrease. The accuracy of the model was checked by simulating single-stage extractions using ASPEN HYSYS. Good agreement was found between predicted and experimental values of yield, furfural content, composition, and physical properties for raffinates and extracts. The maximum errors between calculated values and industrial values of pseudo-component contents are less than 2%.

کلیدواژه‌ها [English]

  • Furfural
  • Liquid-liquid Extraction
  • Lubricating Oil
  • Phase Equilibria
  • Rotating Disc Contactor

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