Oxidation stability and risk evaluation of biodiesel

Abstract

This review describes oxidation and thermal stability and hazardous possibility of biodiesel by auto-oxidation. As it can be distributed using today?s infrastructure biodisel production has increased especially in the European Union. Biodiesel has many surpassing properties as an automotive fuel. Biodiesel is considered safer than diesel fuel because of the high flash point, but it has oxygen and double bond(s). Fatty acid methyl esters are more sensitive to oxidative degradation than fossil diesel fuel. The ability of producing peroxides is rather high, therefore we should care of handling of biodiesel.

Effect of temperature on the oxidation of soybean biodiesel

“…Biodiesel comprises a mixture of alkyl esters obtained by transesterification between a lipid-based feedstock, such as vegetable oils, animal fats, and/or waste cooking oils, and a short-chain alcohol using a catalyst (Giordani et al, 2008). In addition to the status of renewable energy resources, biodiesel presents some advantages compared to fossil fuel, such as its biodegradability, reduced exhaust emissions, higher cetane number, greater lubricity, and safer distribution and storage due to its higher flash point (Hoshino, 2007;Knothe, 2007;Monyem and Van Gerpen, 2001). Furthermore, the production and use of biodiesel has also focused on social inclusion and regional development by generating employment and income, as is the case in Brazil (Suarez, 2006).…”

The effect of synthetic antioxidants on the oxidative stability of biodiesel

“…This is widely presented as its main advantage [2]. In addition, biodiesel fuel is biodegradable [3][6] contains insignificant amounts of sulphur [1] and is considered safer than mineral diesel owing to its higher flash point [7]. Lubricity is an important issue because the moving parts in many fuel pumps are actually lubricated by the diesel fuel itself [1].…”

“…Monteiroa et al [26] reviewed analytical techniques for the characterization of biodiesels while Hoshino et al [7] reviewed the methods available for characterizing oxidative stability. Oxidation in the condensed phase is characterized by a seemingly quiescent induction period (IP) followed by a sudden increase in the rate.…”

Determination of SpontaneousIgnition of SSSR and Fish Meal duringTransport and Storage

“…Recently, there has been an increase in the trend to reduce waste generation as much as possible and carry out recycling and energy recovery to construct a recycling-oriented society (Hoshino, Iwata & Koseki, 2007;Shibata, Koseki & Shimizu). Even certain wastes that are difficult to recycle can be effectively used to the maximum by collecting heat energy generated by incineration in the form of electricity or steam.…”