Fuel properties of biodiesel from vegetable oils and oil mixtures. Influence of methyl esters distribution

Adaptability of sunflower (Helianthus annuus L.) high oleic hybrids to different Italian areas for biodiesel production

“…Sunflower oil yield can be easily put in relation with potential production of biodiesel, since the ratio between weight of produced biodiesel and weight of sunflower oil in input reaches permanently 96-99%, when using the most common production processes based on catalysis with alkali (Antolin et al, 2002;Rashid et al, 2008;Martìnez et al, 2014). Hence, the quantities of potential oil per hectare reported in this paper can be approximately transformed in potential production of biodiesel obtained in a production chain where chemical extraction is used.…”

“…In general, all results of oleic acid content resulted to be higher than 80%; this issue is particularly important since studies highlight that the best results concerning yield of transesterification process and biodiesel quality are obtained using oils with high oleic acid contents (Martìnez et al, 2014). The results obtained in this paper demonstrate that the current high oleic sunflower hybrids permit to obtain an oil that is suitable for the biodiesel production in dif- where it is highlighted that the same does not happen with many of the conventional hybrids.…”

Implementation of palm biodiesel based on economic aspects, performance, emission, and wear characteristics

“…High spray penetration is responsible for such problems as engine deposit growth and thickening of lubricating oil. However, these effects can be reduced or eliminated by the transesterification of oil to methyl ester [51].…”

Moringa oleifera : A potential source for production of biodiesel and antioxidant additives

“…The high acid value is a typical characteristic of raw oils that did not pass by a refining process, such as the crude Karanja oil (31.24 mg KOH g À1 oil) and Moringa oil (8.62 mg KOH g À1 oil) [26][27][28], which can be considered as high value in comparison with other oil sources such as sunflower (1.90 mg KOH g À1 oil), rapeseed (0.71 mg KOH g À1 oil), and soybean oils (2.74 mg KOH g À1 oil). [29] The saponification index of 179 mg KOH/100 g, kinematic viscosity (40°C) of 44.5 mm 2 s À1 , induction period (oxidation stability) over than 60 h, of moisture content of 840 mg Kg À1 , and peroxide value of 10.4 meq Kg À1 were obtained. The high acidity and other factors, such as high moisture content, cause partial hydrolysis of triglycerides into free fatty acids, which interfere on the biodiesel production process by favoring saponification reactions.…”