<p>Abstract: Biodiesel is renewable fuel sources that has the same properties with diesel fuel. It is<br />usually produced from transesterification of vegetable oil with alcohol. Transesterification can be<br />done by homogen or heterogen catalyst. ZnO-based heterogen catalyst can produce a high purity<br />biodiesel. The particle size is made into the nano size. Fe<br />2<br />O<br />3<br />was added to ZnO nanoparticle<br />matrix to make it easier to separate from the product. The purpose of this research was to obtain<br />catalytic and separation performance of nanocomposite ZnO/Fe<br />2<br />O<br />3<br />. After being activated, it was<br />mixed with methanol, stirred in reactor and heated until 65<br />C. At the same time, waste cooking<br />oil at 65<br />o<br />o<br />C was added to the reactor. Reaction was carried out for 3 hours at constant temperature<br />of 65<br />C. Then the product was separated. The top layer was methyl ester, and the bottom layer<br />was glycerol. The product and catalyst were separated by magnet. The separated catalyst was<br />collected as catalyst recovery. The glycerol was analyzed to determine the reaction convertion.<br />Methyl ester was analyzed using GC-MS method. The result showed that the catalyst recovery<br />decreased from 76,4% to 65,3% and the convertion from GC-MS was 66,11% for 6 hours.<br />o<br />Keywords: transesterification,nanocomposite ZnO/Fe<br />2<br />O<br />3<br />catalyst, catalyst recovery, reaction<br />convertion, GC-MS.</p>
Comparison of performance of biodiesels of mahua oil and gingili oil in dual fuel engine
