A Highly Effective Antioxidant and Artificial Marker for Biodiesel

摘要: Biodiesel is composed of saturated and unsaturated methyl esters fatty acids formed via transesterification vegetable oil or animal fat. This chemical nature makes biodiesel much more susceptible to oxidation autoxidation during long-term storage than conventional petrodiesel. Increasing resistance therefore requires the use antioxidants. paper investigates effectiveness N,N′-di-sec-butyl-p-phenylenediamine (1) as a antioxidant improve oxidative stability soybean, sunflower canola biodiesel. Results indicate that induction period for soybean significantly improved with addition only 0.2 ppm 1, reaching specification (6 h by Rancimat test). For biodiesel, 2.0 1 was necessary. additive also shown be efficiently detected easy ambient sonic-spray ionization mass spectrometry technique, indicating its analogues derivative...