TY - JOUR
TI - Evaluation of trimethyl borate and triethyl borate as fuel additives for enhancing physicochemical properties of canola and peanut oil biodiesels
AU - Aydin Fatih
AU - Güzel Balikçioğlu Ayşegül
JN - Thermal Science
PY - 2026
VL - 30
IS - 3
SP - 2155
EP - 2170
PT - Article
AB - Biodiesel is a promising alternative to conventional fossil fuels; however,  its physicochemical properties often require enhancement to improve  performance and stability. This study investigates the effects of trimethyl  borate (TMB) and triethyl borate (TEB) as additives to improve biodiesel  fuel characteristics. Canola oil and peanut oil biodiesels were synthesized  using the transesterification process. Subsequently, 1% and 2% TMB and TEB  were added to the biodiesels, and their physicochemical properties were  analyzed. The density, kinematic viscosity, cetane number, flash point, cold  flow properties, calorific value, and corrosion behavior were evaluated. The  addition of TMB reduced kinematic viscosity by up to 15.7% in peanut  biodiesel and 6.1% in canola biodiesel. Cold flow properties also improved,  with pour point reductions of up to 2.1°C for peanut biodiesel and 1.9°C for  canola biodiesel. However, slight decreases in calorific value (up to 1.7%)  and flash point (up to 15°C) were observed. All samples maintained excellent  corrosion resistance (1a rating). These findings demonstrate that TMB and  TEB can effectively enhance biodiesel flow properties and viscosity,  particularly benefiting cold climate applications.
DO - 10.2298/TSCI251011241A
ER -