Title:
Impact of Oxidized Biodiesel/fresh Biodiesel on Determination of Induction Period by EN14112
Author(s):
Silva, V.F., Pissurno, E.C.G., Fonseca, M.G., Cunha, V.S., Batista, L.N.
Document(s):
Paper
Abstract:
Oxidation stability is the main characteristic to determine shelf life of biodiesel or oxidation status. For European legislation, the induction period of biodiesel, determined by EN14112, should be upper to 6h. This work intends verify if EN14112 can be used to determine a presence of inadequate biofuels into fresh biodiesel. Was determined impact on induction period when oxidized biofuel is blended with fresh biodiesel. Fresh soybean methyl biodiesel (FSB) with antioxidant was used as base and five years old soybean (FYO) methyl biodiesel and soybean methyl biodiesel oxidized into Rancimat (ROX) was used to make blends. Results show blends with 30% of mass of FYO biodiesel and 5% of ROX will be approved by European legislation. It is a great problem although high induction period, chromatography results shows presence of 2,4 decadienal, hexanoic acid, 8¬hidroxy octanoate among others degradation products into blends. ROX presents worst results because content of oxidative compounds is higher than FYO; it was probably caused by volatile compounds of FYO got out of solution along of years. Presence of oxidation products increase of insoluble and gums formations, impacting shelf life and changing combustion characteristics. Therefore, is important complementary analysis or improve EN14112 to detection this unwished products.
Keywords:
biodiesel, oxidation, quality, storage
Topic:
Biomass Policies, Markets and Sustainability
Subtopic:
Standardisation
Event:
20th European Biomass Conference and Exhibition
Session:
5BO.3.3
Pages:
1992 - 1995
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-5BO.3.3
Price:
FREE
