Abstract
In this study, anhydrous ethanol fuel samples obtained from pipelines dedicated to the ethanol fuel transport and from multi-product pipelines were tested by standard slow strain stress tests and API 5L X65 notched specimens. The fractures of the specimens were observed by optical and scanning electron microscopes. The metallographic examination of a normal section of the fracture surface was carried out. It was observed that the ethanol samples from multi-product pipelines were more aggressive than the ethanol fuel from dedicated pipeline samples. On the other hand, ethanol fuel from dedicated pipeline samples presented quasi-cleavage fractures which have not been seen before in the literature. Nowadays, it has been known that Brazilian Midwest is producing fuel ethanol from second crop corn. This study sheds light on a possible change in the Brazilian fuel ethanol matrix that in the past was predominantly composed of sugar cane ethanol and is currently receiving the contribution of corn ethanol in order to avoid any transport and storage system failure.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call