کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
49206 46724 2016 5 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst
ترجمه فارسی عنوان
استری کردن فاز بخار اسید لولولینیک روی کاتالیزور ZrO2 / SBA-15
کلمات کلیدی
ZrO2 / SBA-15؛ اصلاح لوولینیک اسید؛ آلکیل لووالینت؛ γ-والرولاکتون؛ کاهش MPV
ZrO2/SBA-15; Esterification; Levulinic acid; Alkyl levulinate; γ-valerolactone; MPV reduction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Impregnation method was adopted to prepare ZrO2/SBA-15 catalysts.
• Levulinic acid esterification in vapor phase for the first time was tested.
• Catalyst with 7 wt% ZrO2 loading exhibited good activity to yield methyl levulinate.
• Steady activity was found over 7 wt% ZrO2 catalyst during 10 h time on stream study.
• Increase in the alcohol chain length favors the formation of γ-valerolactone.

ZrO2/SBA-15 catalysts with different ZrO2 loadings prepared by impregnation method were tested for the esterification of levulinic acid in a fixed-bed reactor in vapor phase conditions at atmospheric pressure for the first time and found that the catalyst with 7 weight percent ZrO2 exhibited 100% conversion of levulinic acid and 96% selectivity to methyl levulinate due to the presence of more number of moderate acidic sites. It is interesting to observe the formation of γ-valerolactone as the alcohol chain length increases at the expense of alkyl levulinate, through MPV reduction mechanism.

Graphical abstract7 weight % ZrO2/SBA-15 catalyst exhibits good activity in the esterification of levulinic acid under vapor phase conditions.Figure optionsDownload full-size imageDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 75, 5 February 2016, Pages 1–5
نویسندگان
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