کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1734046 1016150 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on the use of MgAl hydrotalcites as solid heterogeneous catalysts for biodiesel production
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Study on the use of MgAl hydrotalcites as solid heterogeneous catalysts for biodiesel production
چکیده انگلیسی

This paper, reports experimental work on the use of new heterogeneous solid basic catalysts for biodiesel production: double oxides of Mg and Al, produced by calcination, at high temperature, of MgAl lamellar structures, the hydrotalcites (HT). The most suitable catalyst system studied are hydrotalcite Mg:Al 2:1 calcinated at 507 °C and 700 °C, leading to higher values of FAME also in the second reaction stage. One of the prepared catalysts resulted in 97.1% Fatty acids methyl esters (FAME) in the 1st reaction step, 92.2% FAME in the 2nd reaction step and 34% FAME in the 3rd reaction step. The biodiesel obtained in the transesterification reaction showed composition and quality parameters within the limits specified by the European Standard EN 14214. 2.5% wt catalyst/oil and a molar ratio methanol:oil of 9:1 or 12:1 at 60–65 °C and 4 h of reaction time are the best operating conditions achieved in this study. This study showed the potential of Mg/Al hydrotalcites as heterogeneous catalysts for biodiesel production.


► Use of solid basic catalysts for biodiesel production: double oxides of Mg and Al.
► Catalysts resulted in 97.1% Fatty acids methyl esters (FAME) in the 1st reaction step, 92.2% FAME.
► Biodiesel obtained in the transesterification reaction showed composition and quality parameters within the requested limits.
► Study showed the potential of Mg/Al hydrotalcites as heterogeneous catalysts for biodiesel production.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 36, Issue 12, December 2011, Pages 6770–6778
نویسندگان
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