کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
68539 48517 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Alumina-supported potassium iodide as a heterogeneous catalyst for biodiesel production from soybean oil
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Alumina-supported potassium iodide as a heterogeneous catalyst for biodiesel production from soybean oil
چکیده انگلیسی

Biodiesel fuel, a promising alternative diesel fuel produced by a catalytic transesterification of vegetable oils, has become more attractive recently because of its environmental concerns and the fact that it is made from renewable resources. In this work, the transesterification of soybean oil with methanol has been studied in a heterogeneous system, using alumina loaded with potassium iodide as a solid base catalyst. After loading KI of 35 wt.% on alumina followed by calcination at 773 K for 3 h, the catalyst gave the highest basicity and the best catalytic activity for this reaction. The catalysts were characterized by means of XRD, IR, SEM and the Hammett indicator method. Moreover, the dependence of the conversion of soybean oil on the reaction variables such as the catalyst loading, the molar ratio of methanol to oil and the reaction time was studied. The conversion of 96% was achieved under the optimum reaction conditions. Besides, a correlation of the catalyst activity for the transesterification reaction with its basicity was proposed.

Biodiesel can be produced by transesterification of soybean oil to methyl esters using alumina-supported potassium iodide as a solid base catalyst in a heterogeneous manner. Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 255, Issues 1–2, 1 August 2006, Pages 1–9
نویسندگان
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