Characterization and kinetics of diesel-biodiesel blends by non-isothermal thermal analysis techniques

KÖK M. V., Güresci E. T., Varfolomeev M. A., Nurgaliev D. K.

Petroleum Science and Technology, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1080/10916466.2024.2337411
  • Dergi Adı: Petroleum Science and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Environment Index, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Biodiesel, combustion, diesel, kinetic analysis, thermogravimetry
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

This study investigated the combustion-pyrolysis characteristics and kinetics of blends consisting of diesel and biodiesel at varying concentrations. To assess these characteristics, thermogravimetry (TG-DTG) and a differential scanning calorimeter (DSC) were employed as innovative tools for energy source evaluation. The experimental trials were conducted in two distinct atmospheres, namely nitrogen and air, to elucidate the pyrolysis and combustion properties of the diesel-biodiesel blends. Key parameters were systematically identified and analyzed, including reaction regions, peak temperatures, heat flow rates, and mass losses within the reaction intervals. Furthermore, various kinetic methods, encompassing both differential and integral-based approaches, were utilized to determine the kinetic parameters of the reactions, specifically the activation energy and Arrhenius constant. In the air atmosphere, the activation energy values exhibited a range of 22.1–58.8 kJ/mol, while in the nitrogen atmosphere, they exhibited variability within the range of 15.6–44.5 kJ/mol.