Evaluation Of The Effect Of Ethyl Alcohol Content In A Ternary Ethanol/Biodiesel/Diesel System-Reference-Cited by-同舟云学术

Evaluation Of The Effect Of Ethyl Alcohol Content In A Ternary Ethanol/Biodiesel/Diesel System

Published:2024-06-01 Issue:2 Volume:27 Page:19-26
ISSN:1301-9724
Container-title:International Journal of Thermodynamics
language:en
Short-container-title:

Author:

Nogueira Duarte Lindemberg De Jesus¹^ORCID,Medeiros Gilson¹^ORCID,De Oliveira Humberto Neves Maia¹^ORCID,Barros Neto Eduardo Lins De¹^ORCID,Da Silva Rayandson Raimundo¹^ORCID,Bezerra Jessyca¹^ORCID

Affiliation:

1. federal university of rio grande do norte

Abstract

Increasing concern about climate change and the need to reduce dependence on fossil fuels have driven the search for more sustainable energy alternatives. One way to reduce emissions is by adding oxygenated compounds such as biodiesel and alcohols to diesel fuel. However, this can lead to phase separation between the fuels and have serious consequences for engine performance. In this context, the present study aimed to evaluate the effect of ethanol content on the miscibility of components in mixtures containing ethanol + biodiesel + diesel through the study of liquid-liquid equilibrium. The results from ternary phase diagrams revealed that the amount of water present in ethanol has a significant effect on the miscibility of the mixture components, with larger biphasic regions observed in systems with lower ethanol content. For the 95% ethanol diagram, the reliability of experimental data on equilibrium lines was assessed through the Othmer-Tobias and Hand correlations, which showed correlation coefficients (R²) of 0.996 and 0.995, respectively. The results obtained from the NRTL and UNIQUAC thermodynamic models demonstrated excellent agreement with the experimental data, with a deviation of only 1.78 and 0.78% for the NRTL and UNIQUAC models.

Publisher

International Centre for Applied Thermodynamics (ICAT)

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