Biodiesel Synthesis from the Used Cooking Oil Using CaO Catalyst Derived from Waste Animal Bones

The synthesis of biodiesel from the used cooking oil with CaO catalyst from waste animal bones has been investigated. The content of free fatty acids (FFA) in the used cooking oil was reduced by adsorption using activated charcoal from a salak peel. Biodiesel synthesis was carried out via transesterification using CaO catalyst. The CaO catalyst was obtained from waste animal bones calcined in the Ney Vulcan furnace. The effect of calcination temperature was studied in the range of 873‒1273 K. The effect of catalyst loading was investigated by varying within the range of 1‒9 wt %.

Alkali synthesis of fatty acid butyl and ethyl esters and comparative bench motor testing of blended fuels on their basis

Alkaline transesterification of sunflower oil by n-butanol and ethanol on alkoxide-containing dried solutions of potassium hydroxide has been carried out. Complex character of spontaneous dividing of butanolysis products, accompanying with formation of three different species of glycerol layers, was observed. One of the later was found to be high-alkaline pure glycerol.

Development of Heterogeneous Alkali Methoxide Catalyst from Fly Ash and Limestone

This study is aimed to use fly ash and limestone as raw materials for preparing alkali methoxide heterogeneous catalysts for transesterification of palm oil into biodiesel. The heterogeneous catalyst was synthesized from fly ash and limestone through wet and dry methods and calcined within 1073–1273 K. X-ray diffraction and scanning electron microscopy analyses indicated the well-dispersed presence of the Ca(OCH3)2 crystal over the fly ash and limestone framework, which was mixed using wet method and calcined at 1073 K (W-800).

Optimization of Biodiesel Production from Goat Tallow Using Alkaline Catalysts and Combining them with Diesel

In this research biodiesel is produced from goat tallow in the presence of homogenous catalysts such as KOH and NaOH using trans-esterification process. For this purpose, effect of several parameters such as temperature, reaction time, methanol to oil ratio, type and concentration of a catalyst has been investigated. The results showed that the maximum biodiesel yield (96 and 98 %) was obtained using NaOH and KOH, respectively, and optimal conditions were determined.

Кінетика екстрагування олії з насіння рижію посівного

Oil extraction kinetics from false flax (Camelina sativa) seeds that can be used as the raw material for biodiesel production has been studied. Results obtained in experiments enable to receive a high quality competitive raw material for derivation of biodiesel that satisfies the quality standards. Вивчено кінетику екстрагування олії з насіння рижію, яка може бути використана як сировина для виробництва біодизеля.

Application of Glutaraldehyde-Crosslinked Chitosan Membranes from Shrimp Shellwaste on Production of Biodiesel from Calophyllum Inophyllum Oil

The purification of biodiesel was performed using glutaraldehyde-crosslinked chitosan membrane to improve the quality and to reduce the cost of biodiesel production. Biodiesel was obtained by acid-based catalyzed transesterification of Calophyllum inophyllum oil. The results of this experiment showed that the amount of glycerol in biodiesel before the process is 0.3014±0.05 %. After the purification process performed for 1 h, the glycerol content in biodiesel has been reduced to 0.1429±0.09 %.