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- Title
Analysis of a novel high-speed homogenizer technique for methyl ester production using waste cooking oil: Multi-objective optimization and energy analysis.
- Authors
Prajapati, Nirav; Kachhwaha, Surendra Singh; Kodgire, Pravin; Vij, Rakesh Kumar
- Abstract
While fossil fuels continue to be the predominant energy source, the use of renewable energy is consistently growing. Biodiesel, with its various advantages over traditional fossil fuels, stands out as a promising alternative fuel that is produced from a sustainable and abundant waste cooking oil (WCO) via a transesterification reaction (due to the low acid value of WCO) with alcohol (MeOH) and homogeneous catalyst (KOH) in a high-speed homogenizer. Biodiesel is produced in the industry using conventional mechanical stirring techniques, which are time-consuming and less efficient. It has been recently reported that high-speed homogenizers have the scale-up potential as per industrial requirements and can significantly reduce the transesterification/esterification reaction time. In the present investigation, the Taguchi technique has been applied for the design of experiments and multi-response process optimization using a composite desirability approach. The optimized values observed for yield, yield efficiency, and pour point were 99.18 ± 0.2%, 5.4 × 10–3 g/J, and − 14.9 ± 0.5 °C, respectively, at alcohol to oil molar proportion of 7:1, KOH amount of 0.5 wt%, rotor speed of 14000 rpm and 10 min of process time. The physicochemical properties of produced biodiesel were found within EN 14214 and ASTM D6751 standards limits. • Taguchi-based multi-optimization method applied for transesterification in a high-speed homogeniser. • Values of yield(99.2%), yield efficiency(0.0054 g/J) and pour point(14.9 0C) were optimized. • Process parameters were improved compared to mechanical stirring ones. • The properties of produced biodiesel match with ASTM and EN standards. • High-speed homogenizers are emerging as a scale-up potential with improved process variables.
- Subjects
EDIBLE fats &; oils; METHYL formate; FOSSIL fuels; ALTERNATIVE fuels; PROCESS optimization; PRODUCE trade
- Publication
Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers Part A, 2024, Vol 203, p478
- ISSN
0263-8762
- Publication type
Article
- DOI
10.1016/j.cherd.2024.01.038