کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6764811 | 1431584 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly efficient conversion of glucose into methyl levulinate catalyzed by tin-exchanged montmorillonite
ترجمه فارسی عنوان
تبدیل غلظت گلوکز به متیل لووالین کاتالیز شده توسط مونتموریلونیت مبادله شده با قلع
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کلمات کلیدی
گلوکز، متیل لووالینت، مونتموریلونیت، قلع،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Tin-exchanged montmorillonite catalysts were prepared by an ion exchange method and examined as solid acid catalysts. The synthesized catalysts were characterized by X-ray fluorescence spectroscopy, inductively coupled plasma optical emission spectroscopy, N2 adsorption-desorption analysis, powder X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, NH3 temperature-programmed desorption analysis, and pyridine adsorption Fourier transform infrared spectroscopy. Subsequently, the catalysts were examined for use in the conversion of glucose into methyl levulinate in methanol. A high yield of methyl levulinate of 59.7% was obtained upon conversion of 0.3â¯g glucose in 24â¯g methanol over 0.15â¯g catalyst at 220â¯Â°C under 2â¯MPa N2 for 6â¯h. The recyclability of the catalyst was also examined, and the conversions of glucose and methanol remained mostly unchanged under repeated usage of the catalyst in five catalytic runs; in contrast, the yield of methyl levulinate decreased slightly. The excellent catalytic performance of the tin-exchanged montmorillonite catalyst was attributed to a combination of the presence of a large amount of acidic sites and balanced amounts of Lewis and Brønsted acid sites on the catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 120, May 2018, Pages 231-240
Journal: Renewable Energy - Volume 120, May 2018, Pages 231-240
نویسندگان
Jie Liu, Xue-Qian Wang, Bei-Bei Yang, Chun-Ling Liu, Chun-Li Xu, Wen-Sheng Dong,