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In this study, both the standardized Rancimat and thermoanalytical pressure differential scanning calorimetry (PDSC) methods were employed to investigate the effects of antioxidants on the oxidation stability of biodiesel. The differences in the antioxidant effectiveness between these phenolic compounds could be clearly distinguished by both methods. Results revealed that the efficiency of antioxidant...
In this paper, the PetroOXY method has been mainly used to determine the oxidation stability of biodiesel stabilized with five synthetic antioxidants. The differences in the antioxidant activity of these phenolic compounds could be clearly distinguished with this method. Pyrogallol (PY) and propyl gallate (PG) prove more efficient in inhibiting biodiesel oxidative degradation than butylated hydroxyanisol...
A nanofiber composite catalytic membrane for biodiesel production was prepared from phosphotungstic acid (PWA)/poly(vinyl alcohol) (PVA) via electrospinning on a substrate of non-woven fabric. The effects on the nanofiber structure and catalytic performance by PVA concentration and PWA content were studied, respectively. SEM images showed that the surface of PWA/PVA nanofibers was smooth and homogeneous...
This is a study on the feasibility of biodiesel preparation from a new and promising non-edible feedstock, Datura stramonium L. oil (DSO). First, important physical–chemical properties, such as oil content of seed (21.4wt%), acid value (7.93mgKOH/g) and fatty acid composition of expressed oil, were determined. Second, under the optimal two-step catalyzed reaction conditions, the maximum fatty acid...
Biodiesel is a renewable and environmentally friendly liquid fuel. However, the feedstock, predominantly crop oil, is a limited and expensive food resource which prevents large scale application of biodiesel. Development of non-food feedstocks are therefore, needed to fully utilize biodiesel’s potential. In this study, the larvae of a high fat containing insect, black soldier fly (Hermetia illucens)...
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