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Ag/bauxite nanocomposites have been prepared using in situ reduction of aqueous AgNO3 solution in a bauxite matrix and investigated for the transesterification of sunflower oil with methanol in order to study their potential as heterogeneous catalysts. The prepared nanocopmosites were characterized by XRD, SEM, EDX, FT-IR, and TG- DTA. The Central Composite Design of the Response Surface Methodology...
In this work, five different types of calcium oxide-based catalysts supported gold nanoparticles (AuNPs) (named as nanocatalyst), including commercial CaO, egg shell, mussel shell, calcite, and dolomite were prepared and used in biodiesel synthesis. The optimal conditions of transesterification process were observed at 65°C with a methanol to oil molar ratio of 9:1, a reaction time of 3h and a catalyst...
Although biodiesel has been known as an alternative fuel with specific advantages, it has also been investigated as a bio-solvent. In this study, biodiesel was applied as a bio-solvent for expanded polystyrene (EPS) and the kinetics of polymers’ dissolution in biodiesel was also investigated. Physicochemical parameters such as solubility parameters of EPS and biodiesel as well as polymer–solvent interaction...
Energy recovery has been found to be a promising approach for disposal of polymer waste such as expanded polystyrene (EPS) which entraps large volume of air. Biodiesel known as an advantageous alternative fuel possesses bio-solvent attributes and is feasible to be used for energy recovery from EPS. In this study, maximum EPS dissolution value in biodiesel was calculated and a homogenous fuel composition...
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