期刊
RENEWABLE ENERGY
卷 212, 期 -, 页码 320-332出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2023.05.016
关键词
Blended oil biodiesel; Transesterification via synchronized ultrasound; and microwave; Process optimization; Activation energy; Fuel properties
The current study investigates the application of synchronized ultrasound and microwave for biodiesel production using Ricinus communis oil and used cottonseed cooking oil blends. The study focuses on process optimization, kinetic analysis, and energy analysis, aiming to improve the fuel properties. The effects of oil/methanol proportion, CaO %, RCO + UCCO blend ratio, and reaction time are examined. The use of blended oil proportion as a process parameter is deliberated for the first time. The optimized conditions result in biodiesel with a yield of 92.11 +/- 0.06% and improved fuel properties.
Current novel work investigates synchronized ultrasound and microwave (MW + US) applications with an appropriation of Ricinus communis oil (RCO) and used cottonseed cooking oil (UCCO) blends for biodiesel production. The study aims at process optimization, kinetic and energy analysis of biodiesel production where fuel properties improved. The effect of oil/methanol proportion, CaO %, RCO + UCCO blend ratio, and reaction time is examined using Box-Behnken investigational design. The appropriation of blended oil proportion as a process parameter has been deliberated for the first time. The optimized conditions were methanol:oil ratio: 9.7:1; CaO wt%: 2.8 wt%, reaction time: 12.3 min, and 59:41 of RCO:UCCO blend proportion with highest biodiesel yield of 92.11 +/- 0.06%. The blended oil transesterification kinetics followed the pseudo-first-order, with activation energy 1.8 times lower than the conventional process. Blended oil biodiesel showed -7.5% enhanced calorific value and two-time viscosity reduction than RCO biodiesel. Fuel properties found equivalent to ASTM-D6751 biodiesel standards.
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