Papers by Sugiarto Poniso
The objective of this study was to investigate in situ transesterification process allowing to re... more The objective of this study was to investigate in situ transesterification process allowing to realize directly biodiesel production from jatropha seeds. The influence of moisture content (0.5, 2, 3 and 4 %) and particle size (10, 20 and 35 mesh) of jatropha seeds was examined to determine the best performance of the biodiesel production yield and its quality. Generally, the moisture content and particle size of jatropha seeds affected biodiesel production yield. An increase of biodiesel production yield was observed as moisture content and particle size of jatropha seeds were decreased. Highest biodiesel production yield (71 %) was obtained under seed moisture content of 0.5 % and particle size of 35 mesh. Effect of the moisture content and particle size of jatropha seeds on biodiesel quality was less important. In all experiments tested, the biodiesel quality was very good. The acid value was below 0.3 mg KOH/g of biodiesel, water and sediment content was very poor ( 210 mg KOH/g ...
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Papers by Sugiarto Poniso