Corrosion Aggressiveness of Ethanol-Gasoline and Butanol-Gasoline Blends on Steel: Application of Electrochemical Impedance Spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F22%3A43922924" target="_blank" >RIV/60461373:22320/22:43922924 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acs.energyfuels.1c03680" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.energyfuels.1c03680</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.energyfuels.1c03680" target="_blank" >10.1021/acs.energyfuels.1c03680</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Corrosion Aggressiveness of Ethanol-Gasoline and Butanol-Gasoline Blends on Steel: Application of Electrochemical Impedance Spectroscopy

Popis výsledku v původním jazyce

Nowadays, bioalcohols are promising renewable alternative fuels to gasoline in road transport. One of the most crucial issues of many alcohol fuels is limited information about their compatibility with fuel line materials such as steel. This study aims to evaluate the corrosion aggressiveness of alcohol-gasoline blends to mild and stainless steel. Two alcohol-gasoline blend types were tested: ethanol- and butanol-gasoline blends. These fuels were tested in a pure (noncontaminated) and contaminated form. The corrosion studies were performed using electrochemical impedance spectroscopy in a planar, two-electrode arrangement. We found out that the stainless steel was highly corrosion resistant in all the tested fuels while the mild steel exhibited very good corrosion resistance only in the pure alcohol-gasoline blends. However, the mild steel corrosion resistance decreased considerably after contamination, especially in the case of butanol-gasoline blends, and the highest mild steel corrosion rate was measured in the contaminated B85 fuel with 6 vol. % of water having the lowest value of polarization resistance of 128 kcm2. Furthermore, pitting corrosion was observed in the B40 and higher fuels even at short exposure times, and, once being contaminated, butanol-gasoline blends were found to be more aggressive to the mild steel.

Název v anglickém jazyce

Corrosion Aggressiveness of Ethanol-Gasoline and Butanol-Gasoline Blends on Steel: Application of Electrochemical Impedance Spectroscopy

Popis výsledku anglicky

Nowadays, bioalcohols are promising renewable alternative fuels to gasoline in road transport. One of the most crucial issues of many alcohol fuels is limited information about their compatibility with fuel line materials such as steel. This study aims to evaluate the corrosion aggressiveness of alcohol-gasoline blends to mild and stainless steel. Two alcohol-gasoline blend types were tested: ethanol- and butanol-gasoline blends. These fuels were tested in a pure (noncontaminated) and contaminated form. The corrosion studies were performed using electrochemical impedance spectroscopy in a planar, two-electrode arrangement. We found out that the stainless steel was highly corrosion resistant in all the tested fuels while the mild steel exhibited very good corrosion resistance only in the pure alcohol-gasoline blends. However, the mild steel corrosion resistance decreased considerably after contamination, especially in the case of butanol-gasoline blends, and the highest mild steel corrosion rate was measured in the contaminated B85 fuel with 6 vol. % of water having the lowest value of polarization resistance of 128 kcm2. Furthermore, pitting corrosion was observed in the B40 and higher fuels even at short exposure times, and, once being contaminated, butanol-gasoline blends were found to be more aggressive to the mild steel.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Energy &amp; Fuels

ISSN

0887-0624

e-ISSN

1520-5029

Svazek periodika

36

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

2616-2629

Kód UT WoS článku

000797928000023

EID výsledku v databázi Scopus

2-s2.0-85125230991