Room: Poster Area
Date: Tuesday, 19 May 2026
Time: 15:00 - 16:00 CEST
Session code 5AV.2
Innovation in advanced processes for biofuels production: materials, mechanisms, and performances (part 1)
Chemical Speciation of Biodiesel Particulates: Evidence of Multicausal Aggregation in Commercial Samples from the Brazilian Marquet
Short Introductive summary
Particulate contamination in biodiesel is a critical factor affecting fuel operability, particularly under storage and handling conditions. Although standardised methods such as ASTM D7321 quantify insoluble material, they provide limited insight into its chemical nature, restricting interpretation of precipitation phenomena, especially when fuels remain within conventional quality specifications. This limitation is particularly relevant in high-variability systems such as Brazil, where feedstock diversity and distribution conditions amplify compositional complexity. Particulate contamination may arise from interactions among chemically distinct species with physicochemical behaviours, as well as from the presence of poorly miscible contaminants. This study addresses this challenge through chemical speciation of particulate residues, providing a more robust basis for interpreting contamination mechanisms and their impact on fuel operability.
Presenter
Pedro PRATES
LEC-UFMG, Chemistry Dpt., BRAZIL
Presenter's biography
Scientist with a PhD in Chemical Engineering and over 18 years of experience spanning applied research, industry and higher education. Current work focuses on biofuels, including fuel quality, oxidative stability, particulate contamination, and the effects of feedstock diversity on fuel performance.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
P. Prates-Valério, LEC-UFMG, Belo Horizonte, BRAZIL
V.M.D. Pasa, LEC-UFMG, Belo Horizonte, BRAZIL
Session reference: 5AV.2.20