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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2012, Volume 63, Issue 9,





DIANA CURSARU, SONIA MIHAI
Corrosion Behaviour of Automotive Materials
in Biodiesel from Sunflower Oil

Abstract:

The effect of biodiesel fuel synthesized by catalytic transesterification of the fatty glycerides existing into sunflower oil in the presence of methanol, on the corrosion properties of mild carbon steel, stainless steel and Monel steel was investigated and compared with those of classic diesel fuel. It was also studied the effect of the replacement of different (1, 5 and 10) volume percents of classic diesel fuel with biodiesel on the corrosion rates of the metals. The corrosion behaviour of biodiesel, diesel fuel or mixtures biodiesel-diesel fuel was evaluated by conventional electrochemical techniques. It was found that the corrosion rates of the metals immersed in commercial diesel fuel were relatively lower than corresponding to the corrosion rates of the metals immersed in biodiesel. In addition, it was observed that by rising the percent of biodiesel in diesel fuel the corrosion raises. The corrosion rates of mild carbon steel, stainless steel and Monel steel in biodiesel were decreased in order. Keywords: biodiesel, corrosion, automotive materials, engine parts


Issue: 2012, Volume 63, Issue 9
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