Experimental Investigation of Different Extraction Methods for Producing Biofuel from Jatropha Seeds and Castor Seeds

Abstract

While energy production is highly dependent on fossil fuels, which consider the main source of global warming, biofuels would play a significant impact in diminishing such warming. In this paper, biooils were extracted from inedible seeds (Jatropha and Castor) using different continuous devices (solvents, screw presses, and hydraulic press-machines), aiming to achieve the highest oil’s yield of improved extraction properties at reduced time and energy. A wide range of engine speeds of 35, 60, 85, 110, and 135 rpm and preheating temperatures of 100, 125, 150, 175, 200, and 250°C were extensively studied to find their impact on the extraction properties. Results proved the ability of the screw press machine to extract the highest biooil yields from Jatropha and castor seeds. The optimum yield of Jatropha and castor were achieved at an extraction temperature range of 150-175°C at a motor speed of 135 rpm and a temperature range of 200-250°C at a motor speed of 35 rpm, respectively. Noteworthy, the yield of extracted castor oil is potentially solidified at low temperatures <100°C, leading oil samples to become like a dough. In contrast, lowering the temperatures of the Jatropha seeds improved the physical and chemical properties of the extracted oil. At a certain temperature (e.g., 100°C), the properties of both extracted and diesel oils are quite similar, which can be used directly in diesel engines.

The effect of temperature, time, and methanol concentration on enhancing the yield of biodiesel production of castor and rapeseed seeds via the Transesterification process

“…Nearly every nation in Europe cultivates it. To ascertain the full costs and advantages of biofuels, including their net energy production efficiency and the extent of related environmental and social implications, more research is necessary [9] [10] .…”

The performance of a developed diesel vehicle to run on WCO biodiesel at variable speeds and loads

“…Environmental issues and lack of fuel supplies mean that it is an appropriate time to look into acceptable sustainable alternative fuels (Altun et al 2011;Hasanin et al 2022;Ibrahim S.M.A. et al 2017;Khalaf et al 2023;Khater et al 2023). Most research has concentrated on non-edible vegetable oils to produce biodiesel due to edible vegetable oils being costly (Galushchak et al 2023;Ibrahim M.M.…”

Kernel-Based Biodiesel Production from Non-Edible Oil Seeds: Techniques, Optimization, and Environmental Implications

“…A high oil yield was obtained at a temperature of 175 • C and 135 rpm speed for Jatropha, while, for castor seed, a 250 • C preheating temperature with a 35 rpm screw rotation speed was optimal. The hydraulic press produces less oil from Jatropha and castor compared to other mechanical methods because of oil absorption [17]. Another common method used for extraction is solvent extraction, where n-hexane is employed.…”