Electrochemical Study of Mild Steel Resistance in Butanol-Gasoline and Ethanol-Gasoline Blends

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F21%3A43922075" target="_blank" >RIV/60461373:22320/21:43922075 - isvavai.cz</a>

Result on the web

<a href="https://pubs.acs.org/doi/pdf/10.1021/acs.energyfuels.1c02565" target="_blank" >https://pubs.acs.org/doi/pdf/10.1021/acs.energyfuels.1c02565</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.energyfuels.1c02565" target="_blank" >10.1021/acs.energyfuels.1c02565</a>

Result language

angličtina

Original language name

Electrochemical Study of Mild Steel Resistance in Butanol-Gasoline and Ethanol-Gasoline Blends

Original language description

This work deals with studying mild steel corrosion resistance in ethanol-gasoline and butanol-gasoline blends (EGBs and BGBs, respectively) with an alcohol content of 10–100 vol. %. These fuels were tested in two forms: pure (non-contaminated), and purposely contaminated with water and trace amounts of acids, chlorides, and sulfate ions. Electrochemical methods, such as open circuit potential, electrochemical impedance spectroscopy, and polarization characteristics measurement in three-electrode arrangements were used for the study. A three-month-long static immersion test was performed as a supplementary method. The obtained results showed that the contamination led to an increase in aggressiveness of the tested fuels against the mild steel. This effect was surprisingly more noticeable for the BGBs, in which the corrosion rate increased by up to three orders of magnitude compared with their non-contaminated form. For the EGBs with an ethanol content of 60 vol. % or more (E60 and higher), an initial quasi-passive state was observed, which was not persistent. Pitting corrosion was observed especially in the E100 fuel and in the fuels containing 40 vol. % or more of butanol (B40 and higher). The E10 and B10 fuels showed very low corrosion aggressiveness even after the contamination. In the B10 fuel, the lowest mild steel corrosion rates were measured, which corresponded to the lowest corrosion current densities (3.6 × 10-3 µA.cm-2) and the highest polarization resistance (13.7 M.cm2).

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Energy &amp; Fuels

ISSN

0887-0624

e-ISSN

—

Volume of the periodical

35

Issue of the periodical within the volume

23

Country of publishing house

US - UNITED STATES

Number of pages

18

Pages from-to

"19507–19524"

UT code for WoS article

000750883400052

EID of the result in the Scopus database

2-s2.0-85119445148