کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
685013 889032 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of free fatty acid in waste frying oil by esterification with methanol on zeolite catalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Removal of free fatty acid in waste frying oil by esterification with methanol on zeolite catalysts
چکیده انگلیسی

The removal of free fatty acid (FFA) in waste frying oil by esterification with methanol was conducted using various zeolite catalysts. The ZSM-5 (MFI), mordenite (MOR), faujasite (FAU), beta (BEA) zeolites, and silicalite were employed with different Si/Al molar ratio in the reaction. The effects of acidic properties and pore structure of the zeolite catalysts were discussed relating to the conversion of the FFA. The MFI zeolite induced an improvement of the removal efficiency of FFA by cracking to the FFA in its pore structure due to its narrow pore mouth. The catalytic activity for FFA removal was lowered with decreasing of acid strength of the zeolites. The strong acid sites of zeolites induced the high conversion of FFA comparatively. The acid strength and pore structure of acidic zeolites affected the catalytic activity in FFA removal.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 99, Issue 16, November 2008, Pages 7438–7443
نویسندگان
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