مقاله انگلیسی تولید سبز و کارآمد فورفورال از شاخه ذرت از H-ZSM-5 با استفاده از γ-والرولاکتون به عنوان حلال

26 شهریور 1397 | 10:48

مقاله انگلیسی تولید سبز و کارآمد فورفورال از شاخه ذرت از H-ZSM-5 با استفاده از γ-والرولاکتون به عنوان حلال
عنوان فارسی مقاله: تولید سبز و کارآمد فورفورال از شاخه ذرت از H-ZSM-5 با استفاده از γ-والرولاکتون به عنوان حلال
عنوان انگلیسی مقاله: Green and efficient production of furfural from corn cob over H-ZSM-5 using γ-valerolactone as solvent
مجله/کنفرانس: Industrial Crops and Products
رشته های تحصیلی مرتبط: مهندسی صنایع
گرایش های تحصیلی مرتبط: سیستم های سلامت
کلمات کلیدی انگلیسی: Corn cob; Furfural; H-ZSM-5; γ-Valerolactone; Brønsted acid; Kinetics
نوع نگارش مقاله: پژوهشی - research
نمایه: scopus - master journals - JCR
DOI: doi.org/10.1016/j.indcrop.2018.04.065
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنالی
نوع مقاله: ISI
سال انتشار مقاله: 2018
ایمپکت فاکتور(IF): 3.849(2017)
شاخص H_index: 94
SJR: 1.091
شناسه ISSN: 0926-6690
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 8
کد محصول: EN106
فهرست انگلیسی مطالب
Abstract

Introduction

Materials and method
-Materials
-Catalyst and solvent preparation
-Catalyst characterization
-Furfural production process with H-ZSM-5 as catalyst in GVL
-Analytical methods of liquid phase
-Kinetic models

Results and discussion
-Raw material composition
-Acid sites analysis in H-ZSM-5 zeolites
-Temperatures and H-ZSM-5 concentrations on furfural yield in GVL
-Kinetics of the conversion of corn cob into fufural over H-ZSM-5
-Optimization of furfural formation from corn cob over H-ZSM-5 in GVL using kinetic models

Conclusion

References
نمونه متن انگلیسی
Abstract

γ-Valerolactone is an excellent green solvent for the conversion of lignocellulosic biomass into platform chemicals. A green and efficient production process of furfural from corn cob was investigated under mild reaction temperature (170–210 °C): γ-valerolactone as solvent, H-ZSM-5 as catalyst. A maximum furfural yield of 71.68% was obtained under 190 °C for 60 min with 35 g/L H-ZSM-5 (1.4 g H-ZSM-5/g corn cob).The high yield of furfural could be primarily explained by the highly catalytic activity of H-ZSM-5 and suppression of condensation reactions between intermediates and furfural molecular due to the solvent effect of γ-valerolactone. Infrared spectroscopy of pyridine adsorption was applied to measure the density of Brønsted and Lewis acid sites in the H-ZSM-5. The Brønsted acid sites density of H-ZSM-5 was 656 μmol/g. The results showed that Brønsted acid sites of H-ZSM-5 zeolite were critical components which was benefit for the furfural production. More significantly, the Saeman model was exploited to estimate the concentration of furfural which well agreed with the experimental data. Additionally, the activation energy for furfural production from corn cob was 67.67 kJ/mol, which was calculated by a modified Arrhenius equation. The model gave a profound knowledge in the furfural production process from corn cob with H-ZSM-5 zeolite in γ-valerolactone.
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