کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
49219 46724 2016 4 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Microwave-assisted reduction of levulinic acid with alcohols producing γ-valerolactone in the presence of a Ru/C catalyst
ترجمه فارسی عنوان
کاهش لوولینیک اسید با الکل به کمک مایکروویو با تولید γ-valerolactone در حضور یک کاتالیزور RU/C
کلمات کلیدی
مایکروویو؛ هیدروژن؛ γ-والرولاکتون؛ اسید لووولینیک؛ آلکیل levulinates؛ روتنیم
Microwave; Hydrogenation; γ-Valerolactone; Levulinic acid; Alkyl levulinates; Ruthenium
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Ru catalyses reduction of levulinic acid with secondary alcohols to γ-valerolactone.
• Reaction rate increases under microwave irradiation compared to conventional heating.
• i-Propanol and 2-butanol are the best reductants for levulinic acid and its esters.
• The dehydrogenation–hydrogenation mechanism with Ru0 active species was proposed.
• Ru/C exhibited stability upon recycling.

γ-Valerolactone can be synthesized by reduction of levulinic acid and its esters in the presence of secondary alcohols as hydrogen donors and Ru/C as catalyst. The reaction rate increases when using microwave heating. Quantitative formation of γ-valerolactone was observed within 25 min at 160 °C under microwave heating based on levulinic acid and i-propanol. The reaction appears to proceed via a dehydrogenation–hydrogenation sequence.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 75, 5 February 2016, Pages 65–68
نویسندگان
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