Corrosion Behavior of Al in Ethanol-Gasoline Blends

被引：6

作者：

Brito-Franco, Alfredo ^{[1
]}

Uruchurtu, Jorge ^{[1
]}

Rosales-Cadena, Isai ^{[1
]}

Lopez-Sesenes, Roy ^{[2
]}

Alonso Serna-Barquera, Sergio ^{[1
]}

Alfredo Hernandez-Perez, Jose ^{[1
]}

Rocabruno-Valdes, Caroline ^{[1
]}

Gonzalo Gonzalez-Rodriguez, Jose ^{[1
]}

机构：

[1] Univ Autonoma Estado Morelos, Ctr Invest Ingn & Ciencias Aplicadas, Cuernavaca 62209, Morelos, Mexico

[2] Univ Autonoma Estado Morelos, Fac Ciencias Quim & Ingn, Cuernavaca 62209, Morelos, Mexico

来源：

ENERGIES | 2020年 / 13卷 / 21期

关键词：

Al; ethanol– gasoline blends; corrosion behavior; FUEL; STEEL; CRACKING; INHIBITOR; ALLOYS; WATER;

D O I：

10.3390/en13215544

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The corrosion behavior of pure aluminum (Al) in 20 v/v% ethanol-gasoline blends has been studied using electrochemical techniques. Ethanol was obtained from different fruits including sugar cane, oranges, apples, or mangos, whereas other techniques included lineal polarization resistance, electrochemical noise, and electrochemical impedance spectroscopy for 90 days. Results have shown that corrosion rates for Al in all the blends were higher than that obtained in gasoline. In addition, the highest corrosion rate was obtained in the blend containing ethanol obtained from sugar cane. The corrosion process was under charge transfer control in all blends; however, for some exposure times, it was under the adsorption/desorption control of an intermediate compound. Al was susceptible to a localized, plotting type of corrosion in all blends, but they were bigger in size and in number in the blend containing ethanol obtained from sugar cane.

引用

页数：17

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