Effects of storage under different conditions on the fuel properties of biodiesel admixtures derived from waste frying and canola oils

Effect of Biodiesel Mixture Derived from Waste Frying-Corn, Frying-Canola-Corn and Canola-Corn Cooking Oils with Various ‎Ages on Physicochemical Properties

“…Three different biodiesel fuels, namely, waste frying methyl ester (WFME), waste canola methyl ester (WCAME) and waste corn methyl ester (WCOME), were prepared by a methanol-based transesterification process. The production of biodiesel was discussed in Reference [30]. The detailed specifications of the three pure biodiesels including the fatty acid composition and most important properties are summarized in Tables 1 and 2.…”

“…The chemical composition of the biodiesel samples is presented in Table 1. The analysis of biodiesel characteristics by gas chromatography is discussed in Reference [30]. The properties of the biodiesels are shown in Table 2 and compared with biodiesel specifications according to ASTM D6751.…”

“…The properties were measured at various temperature ranges, i.e., high temperature ranges between 20-80 • C in intervals of 10 • C and low-temperature ranges of −10-20 • C in intervals of 2 • C. The weighing was performed with a electronic balance with a precision of ± 0.1 mg. To reduce the experimental error, the test was repeated three-four times, and then the average was calculated. The experimental setup used to measure the biodiesel and density at various temperature ranges is described in References [30,31].…”

“…The measurements of Cloud point (CP), Pour Point (PP) and Cold Filter Plugging Point (CFPP) were made according to ASTM D2500 [34], ASTM D97 [35] and ASTM D6371 [36], respectively. For a greater degree of accuracy, PP measurements were made with a resolution of 1 • C instead of the specified increment of 3 • C. The description of the CP and PP measurement process is explained in Reference [30]. Additionally, the description of the CFPP measurement procedure is explained in Reference [37].…”

“…Therefore, the aim of this study was to expand on the previous analyses on the subject [30,31] specifically: a) the effect of a long-term storage period of eight months for WCME1 and 30 months for WCME2 at a constant temperature on biodiesel properties was explored, b) the influence of the blending of WCME1, WCME 2 and WCME3 on biodiesel properties including viscosity, density and cold flow properties was investigated, c) the accuracy of generalized correlations in the prediction of kinematic viscosity and density for wide ranges of temperature and volume fraction was improved and d) the predictive capability of obtained correlations in estimating the properties of biodiesel blends in terms of kinematic viscosity and density were examined. To the best of the authors' knowledge, this is the first study to investigate the properties of a biodiesel mixture derived from waste frying-corn, frying-canola-corn and canola-corn cooking oils with various ages.…”