Diesel Fuel Oxidation Stability: A Comparative Study

A Comparison of the Stability Performance of Blends of Paraffinic Diesel and Petroleum-Derived Diesel, with RME Biodiesel Using Laboratory Stability Measurement Techniques

“…Most of these techniques are conducted at elevated temperatures (to shorten the analysis time). These techniques may not necessarily correlate with field experience [5], as the degradation mechanisms applicable under the higher temperature conditions, typical of these accelerated tests, may not be representative of those under normal conditions.…”

“…This is speculated to be due to the oxidised FAME, which acts as an effective solvent, dissolving the deposits. Hartikka et al [5] used a slightly different test (ASTM D5304) to assess the stability of the soy biodiesel/FT diesel blends. The principles, however, are similar.…”

“…Based on visual assessment and determination of the 2 values, there appears to be no relationship between the Rancimat and the ASTM D2274 results. Reference [5] indicated that the correlation between EN ISO 12205 (equivalent to ASTM D2274) and the PetroOxy test is weak for HVO blends, with the PetroOxy test being able to distinguish better between fuels having different stabilities. Interestingly, apart from two "outliers, " the data points all lie in a very small envelope (despite the clear absence of some kind of correlation and probably due to the insensitivity of the method as stated below).…”

“…There are some contradictory conclusions in literature on the stability of FAME/paraffinic diesel blends. The majority of authors indicate good stability [5][6][7] but Mushrush et al [8] indicated that blends of soy biodiesel and FT diesel were unstable under oxidative conditions. Mushrush et al evaluated samples using the ASTM D5304 test.…”

Ανάπτυξη Μικροοργανισμών Στην Εφοδιαστική Αλυσίδα Των Πετρελαιοειδών Και Επιπτώσεις Από Τη Χρήση Ανανεώσιμων Υποκατάστατων

“…Οι τιμές του χρόνου επαγωγής των παραφινικών καυσίμων βρέθηκε να είναι παρόμοια σε όλες τις περιπτώσεις ενώ συμβατικό ντήζελ κίνησης ήταν το πιο σταθερό μεταξύ των εξεταζόμενων καυσίμων. (Hartikka, et al, 2013;.…”