RSM optimization of ultrasound-assisted melia dubia oil extraction with green solvents and their suitability for diesel engine applications

Purushothaman Paneerselvam, Mebin Samuel Panithasan and Gnanamoorthi Venkadesan

Renewable Energy, 2024, vol. 222, issue C

Abstract: Melia-dubia, a member of the neem family, is recognized as a promising biodiesel feedstock due to its higher oil content. Hence, this study uses an ultrasound-assisted extraction method to focus on oil extraction from Melia-dubia seeds. Response surface methodology using a 3-factor, 3-level Box-Behnken design (BBD) optimized the oil yield using environmentally friendly solvents such as 2-Methyl tetrahydrofuran, Cyclopentyl methyl ether, and ethanol. They were utilized in the range of 4–8 mL/g. A maximum of 50.5 % yield was achieved using 2-methyl tetrahydrofuran solvent at the solvent-to-solid ratio of 6.98 mL/g at an extraction time of 87.6 min. Furthermore, the GCMS reveals the presence of higher levels of palmitic and linoleic acids in Melia-dubia oil. The obtained biodiesel was tested in a single-cylinder diesel engine at different BMEP values, where the MD20 blend exhibited a 3.75 % increase in brake thermal efficiency compared to diesel at higher BMEP conditions. Additionally, CO and smoke emissions demonstrated significant reductions of 13.08 % and 27.1 % for MD10, as well as 9.83 % and 16.78 % for MD20 blends, respectively, to the baseline diesel fuel. However, it is worth noting that there was a slight increase in NOx emissions for all blends compared to diesel.

Keywords: Melia dubia; Optimization; Green solvents; Ultrasound assisted extraction; Biodiesel; Exhaust emission (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148123018402
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:222:y:2024:i:c:s0960148123018402

DOI: 10.1016/j.renene.2023.119925

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().