Structural insights and antioxidant analysis of a tri-methoxy chalcone with potential as a diesel-biodiesel blend additive

The durability and stability of biofuels are ongoing problems in fuels research, particularly in the case of biodiesel and diesel-biodiesel blends. Problems such as poor oxidation stability and lower energy availability, which affect consumption, emissions, and energy efficiency, limit the consolida...

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Bibliographic Details
Published in:Fuel processing technology 2022-03, Vol.227, p.107122, Article 107122
Main Authors: Moreira, Cauã A., Faria, Eduardo C.M., Queiroz, Jaqueline E., Duarte, Vitor S., Gomes, Marcelo do N., da Silva, Aline M., de Paula, Renata Layse G., Franco, Chris H.J., Cavalcanti, Eduardo H. de S., de Aquino, Gilberto L.B., Napolitano, Hamilton B.
Format: Article
Language:English
Subjects:
Additives
Antioxidant additive
Antioxidants
Biodiesel fuels
Biofuels
Diesel fuels
Diesel-biodiesel blends
Energy efficiency
Mixtures
Molecular modeling
New technology
Oxidation
Stability
Storage and oxidation stability
Thermal analysis
Tri-methoxy chalcone
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Summary:The durability and stability of biofuels are ongoing problems in fuels research, particularly in the case of biodiesel and diesel-biodiesel blends. Problems such as poor oxidation stability and lower energy availability, which affect consumption, emissions, and energy efficiency, limit the consolidation of these fuels in the global energy matrix. In this context, new technologies have been explored to minimize the negative points associated with the use of these fuels, such as additives, which are compounds that minimize these problems and generate better energy efficiency and emission levels. In the present work, an examination is presented of chalcones as a potential antioxidant additive to diesel-biodiesel blends. A comprehensive study with structural description, theoretical calculations, thermal analysis, and scale-up study, allied to the oxidation of a commercial additive with a tri-methoxy chalcone was performed to demonstrate the potential of this molecule. •Chalcone molecule presents a potential protection against oxidation of diesel-biodiesel blends;•Mixtures formed by diesel-biodiesel show good values of stability to oxidation Rancimat;•Small tri-methoxy chalcone additive concentrations increase the oxidation stability of diesel-biodiesel blends;•Structural insights of a tri-methoxy chalcone explain its potential antioxidant additive to diesel-biodiesel blends.
ISSN:0378-3820
1873-7188
DOI:10.1016/j.fuproc.2021.107122