Esterification of levulinic acid to ethyl levulinate biodiesel catalyzed by highly active hierarchically structured Ti-Beta zeolite
محل انتشار: دومین کنفرانس کاتالیست انجمن شیمی ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 316
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شناسه ملی سند علمی:
ICCO02_207
تاریخ نمایه سازی: 3 اردیبهشت 1399
چکیده مقاله:
The nanosized Ti-containing zeolite Beta has been prepared by a two-step post-synthesis approach, which consists of creating vacant T sites with associated silanol groups by dealumination of H-Beta and subsequent titanation of the resulting Si-Beta with Titanium isopropoxide. The samples were characterized by X-ray powder diffraction, N2 adsorption–desorption isotherms, field emission scanning electron microscopy, and Fourier transform infrared spectroscopy. The hierarchically structured Ti-Beta zeolite, with a significant mesopore volume (Vmeso = 0.39 cm³/g) and large surface area (513 m2/g), and without loss of microporosity and crystallinity, was found to play a crucial role in liquid phase esterification of levulinic acid with ethanol.
کلیدواژه ها:
نویسندگان
Fatemeh Imani
Faculty of Chemistry, Kharazmi University, Tehran, Iran
Roozbeh Javad Kallbasi
Faculty of Chemistry, Kharazmi University, Tehran, Iran