Methyl esters produced by transesterification of vegetable oils are the main components of biodiesel, an alternative … environmentally friendly processes to produce biodiesel. In this work, Zn,Al-mixed oxides with different Al/(Al + Zn) molar ratios … were studied as catalysts for the transesterification of soybean oil with methanol. TPD-CO2 (temperature programmed …

phosphate CuVOP resulted very active in the transesterification reaction for biodiesel production. … fluorescence) etc. Moreover, soybean oil was used as feedstock for producing biodiesel, and biodiesel was produced by CuVOP …-catalyzed transesterification process. Response surface methodology was employed to statistically evaluate and optimize the conditions for the …

the response is the biodiesel yield. Soybean heterogeneous transesterification is strongly affected by the methanol …The transesterification reaction of soybean oil with methanol is studied with different γAl2O3 heterogeneous catalysts … biodiesel yield. Finally, the industrial application of the soybean biodiesel as determined through the study of the quality …

catalytic activity of these nanoparticles toward biodiesel production from Sunflower oil through transesterification was studied … certain catalyst concentration, temperature and reaction time, highest yield of biodiesel (86.9%) is attained. The fuel … cycles of transesterification. …

of the extracted raw oil, without any refinement, for biodiesel production. Castor was seeded, plants grew and seeds were … manually harvested after 2 years. Mechanical and chemical oil extraction procedures were evaluated. Biodiesel was produced by … homogenous alkaline transesterification and experimental planning was conducted to evaluate the influence of temperature and …

This study aimed at using a non-edible NO (neem oil) for biodiesel production by modeling and optimizing the two … of 36 min and temperature of 60 °C using RSM (response surface methodology). For biodiesel synthesis, ANN (artificial … biodiesel) yield of 98.7% while RSM quadratic model gave the condition as temperature of 59.91 °C, KOH of 1.01%, methanol …

chemical plant as a transesterification agent and sodium hydroxide as a catalyst. The yield and heating value of the biodiesel …In this study, we produced biodiesel by utilising waste cooking oil as a raw material, unrefined methanol produced by a … produced with unrefined methanol were respectively 1.09% and 0.23 MJ/kg higher than those of the biodiesel prepared with pure …

Effects of variation in biodiesel fuel properties on engine performance are not completely understood and there is a … need for further research. A review of literature studies on biodiesel engine performance and emissions is presented here … reported on the effects of biodiesel oxidation, and antioxidant additives. It is well known that physical properties of …

This work focuses on the development of heterogeneous catalysts for biodiesel production from high free fatty acid (FFA …) containing Jatropha curcas oil (JCO). Solid base and acid catalysts were prepared and tested for transesterification in a batch …-step simultaneous esterification and transesterification. More soap formation was found to be the main problem for calcium oxide (CaO …

Heterogeneous basic catalysts can be used for biodiesel production. The performances of several types of such materials …