Journal
FUEL
Volume 295, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2021.120542
Keywords
Biodiesel; Waste cooking oil; Wheat bran ash; Water scale; Eco-efficiency
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The study investigated the transesterification of waste cooking oil using methanol and modified wheat bran ash as the catalyst, resulting in a biodiesel purity of 93.6%. This suggests that wheat bran ash could serve as a viable option for biodiesel purification.
This study investigated the transesterification of waste cooking oil using methanol and modified wheat bran ash and CaO as the catalyst. Under a simple solid-state reaction, mixing, and well grinding, wheat bran ash and water scale from distillation unit were employed to prepare the catalyst at 700 degrees C during 4 h of calcination in the air. X-ray diffraction, scanning electron microscopy, and fourier-transform infrared spectroscopy were utilized to characterize the catalyst. According to the experimental results, most XRD peaks characterized by CaO. A bio-diesel purity of 93.6% was obtained under an optimal condition, i.e. methanol to oil volume ratio of 1.46:1, a catalyst content of 11.66 wt%, and a temperature of 54.6 degrees C during 114.21 min. Therefore, as a wheat processing byproduct, wheat bran ash could serve as a proper option for the purification of biodiesel.
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