NGHIÊN CỨU TỔNG HỢP HỆ XÚC TÁC Mg – Al hidrotanxit/ γ-Al 2 O 3 CHO PHẢN ỨNG ESTE CHÉO HOÁ MỠ ĐỘNG VẬT TẠO BIODIESEL

Tóm tắt

In this paper, presenting the results of study the integrated catalyst system Mg-Al hydrotetan on the basis of
-Al2O3 by co-precipitation method. The synthesized products were structurally determined by X-ray energy
dispersive spectroscopy. XRD results show that Mg-Al hydrotanoxide has been successfully integrated on
the γ-Al2O3 platform with a uniform degree of size grain, the peaks characterize the product clearly. The
synthesized hydrotanxit/γ- Al2O3 product was used as a catalyst for the cross-esterification of the treated
beef fat to produce biodiese, at 65oC within 8 hours for the amount of biodiesel to be obtained with high
efficiency. The biodiesel composition after the reaction was determined by GC-MS spectroscopy, showing
that the biodiesel composition is mainly methyl esters of specific fatty acids and contains few impurities.