Material Compatibility of Fatty Acid Methyl Esters on Fuel Supply System of CI Engines

The interaction of fuel supply system materials with fatty acid methyl esters needs to be evaluated as the chemical characteristics of biodiesel are different than fossil diesel. The unfavourable properties like oxidation stability, acidity and corrosiveness of biodiesel fuels needs to be analysed f...

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Bibliographic Details
Published in:Materials today : proceedings 2018, Vol.5 (5), p.11678-11685
Main Authors: Mathew, Bineesh C., Thangaraja, J.
Format: Article
Language:English
Subjects:
Fuel system
Hydrogenation
Material compataibilty
Transestirification
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Summary:The interaction of fuel supply system materials with fatty acid methyl esters needs to be evaluated as the chemical characteristics of biodiesel are different than fossil diesel. The unfavourable properties like oxidation stability, acidity and corrosiveness of biodiesel fuels needs to be analysed for their application with automotive fuel systems. Materials including ferrous and non-ferrous alloys and elastomers are directly in contact with the fuels in the supply system. Further, the automobile manufacturers do not provide warranty for the higher blends of biodiesel (B50 to B100) in the existing diesel engines. Also biodiesel are hygroscopic in nature and the impurities like excess methanol, moisture and glycerine particles from trans-esterification process contribute to the higher corrosion rate. The increased water content, due to improper washing also induces microbial growth which causes adverse effect on the automotive parts. The current paper discusses an overview about the material compatibility of biodiesel fuels with the components like fuel tank, filter, injector, fuel lines and also recommends a feasible production process called hydrogenation to overcome some of these issues.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2018.02.137