Effect of storage-induced FAME compositional changes on physicochemical properties and thermal conversion of microemulsion biofuels; Fuel; Vol. 427, Pt. E
| Parent link: | Fuel.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 427, Pt. E.— 2027.— Article number 139955, 14 p. |
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| Other Authors: | , , , |
| Summary: | Title screen This experimental study focuses on the changes to the component composition of rapeseed oil, distilled tall oil, and tall oil fatty acids biodiesel during storage. These changes define the density, dynamic viscosity, ignition, combustion, and anthropogenic emissions of microemulsion fuels prepared with biodiesel as an additive. Density of fresh FAME samples ranged from 880 to 935 kg/m3 at 25°C, with noticeable decrease after storage for RO and DTO samples. Dynamic viscosity of rapeseed FAME was closest to diesel fuel, while DTO and FATO FAME viscosities were approximately twice as high. After storage, significant changes were observed: 13% increase in saturated fatty acid methyl esters in rapeseed FAME; 11–17% change in fatty acid concentrations across all samples; 37% variation in oxygen-containing hydrocarbons in rapeseed FAME. Biodiesel is produced by transesterification using methanol and an alkaline catalyst. Microemulsion blends stabilized with a 9:1 mixture of non-ionic surfactants (Neonol AF 9–6 and isoamyl alcohol) are based on diesel fuel, an 8 wt% bio-additive, and 3.5 wt% distilled water. The findings demonstrate the significant effect of biodiesel microemulsification on fuel ignition and combustion under temperature conditions comparable to those in real power plants. Furthermore, microemulsification reduces harmful emissions by 40–70%, depending on the type of biodiesel used. 10–16% decrease in ignition delay at temperatures above 800°C. These results demonstrate the feasibility of using microemulsion fuel containing biodiesel additives in existing power plants Текстовый файл AM_Agreement |
| Language: | English |
| Published: |
2027
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| Subjects: | |
| Online Access: | https://doi.org/10.1016/j.fuel.2026.139955 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=687727 |