کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
209279 461664 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Petcoke-derived functionalized activated carbon as support in a bifunctional catalyst for tire oil hydroprocessing
ترجمه فارسی عنوان
کربن فعال شده از پت کک به عنوان یک پشتیبان در یک کاتالیزور بیفکنیک برای هیدروپارسینگ روغن تایر
کلمات کلیدی
روغن تایر، پردازش هیدرولیکی، هیدرود سولفوریزاسیون، کربن فعال، نفتا، دیزل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Activated carbons derived from petcoke as supports for NiMo hydrotreating catalyst
• Functionalized catalysts tested differently in tire pyrolysis oil hydrotreating.
• HNO3 functionalization enhances surface acidity by adding oxygen-bearing groups.
• The best catalyst removes 96.3% of sulfur and 11 wt% of gasoil.

The catalytic performance of three NiMo catalysts supported on tailored activated carbon (AC) supports has been studied for the hydroprocessing of tire oil for sulfur removal and conversion of heavier fractions towards lighter naphtha and diesel production. The supports have been obtained through physical activation of petcoke for different times, and in some cases functionalized via acid treatment with HNO3. The hydroprocessing runs have been carried out in a fixed bed reactor working in trickle bed regime at 275–375 °C, 65 bar and a space time of 0.16 h. The catalyst properties have been measured by ICP-AES, N2 adsorption–desorption isotherms, TPR, and tert-butylamine adsorption–desorption (TPD). A preliminary catalyst screening using a synthetic mixture of model compounds of tire oil was used to select the most active catalyst. This catalyst, which contained a support activated for 9 h and functionalized with HNO3, had an HDS conversion of up to 99.9%. In the hydroprocessing of real tire oil, the same NiMo/AC catalyst reached a steady sulfur removal of 96.3% and a heavy gasoil lump removal higher than 11 wt%, with complete olefin hydrogenation and a decreased content of naphthenes and aromatics in the products. The cetane number of the diesel fraction was also enhanced with this catalyst.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 144, April 2016, Pages 239–247
نویسندگان
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