Sulfation of metal-organic framework (MOF) nanocatalyst for esterification of oleic acid with methanol to produce biodiesel
- سال انتشار: 1402
- محل انتشار: مجله مدیریت و مهندسی بهداشت محیط، دوره: 10، شماره: 3
- کد COI اختصاصی: JR_EHEM-10-3_010
- زبان مقاله: انگلیسی
- تعداد مشاهده: 98
نویسندگان
Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran
Corresponding author: Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran
چکیده
Background: Metal-organic frameworks (MOFs) represent tremendous potential as heterogeneous catalyst in renewable energy production. In this study, biodiesel production using the modified MOF nanocatalyst was investigated in the esterification reaction. Methods: MOF nanocatalyst was prepared using solvothermal method and modified through sulfation process. The nanocatalysts was characterized by XRD, FT-IR, FE-SEM, TEM, N۲ adsorption-desorption, and NH۳-TPD techniques. The performance of the nanocatalysts was evaluated in the esterification reaction of free fatty acid (FFA) at different operating conditions. Results: The results showed the high crystallinity, appropriate textural properties (۹۹۵.۶ m۲g-۱), well-adjusted acidity, and high hydrophobicity. The sulfation degree of ۴ cc g-۱ resulted in the best nanocatalyst, which led to the highest FFA conversion (۹۷%) at the optimal conditions: methanol to FFA ratio of ۱۰:۱, ۳wt.% nanocatalyst, ۱۶۰ °C, and ۶ hours. Surprisingly, the developed nanocatalyst had a great reusability while the conversion reduction was only ۸% after six sequence cycles. Conclusion: These results proved the high capability of the developed nanocatalyst in the esterification reaction to produce biodiesel.کلیدواژه ها
Esterification, Methanol, Fatty acids, Metal-organic frameworksاطلاعات بیشتر در مورد COI
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