Amines as Steel Corrosion Inhibitors in Ethanol-Gasoline Blends

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43927550" target="_blank" >RIV/60461373:22310/24:43927550 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22320/24:43927550 RIV/60461373:22810/24:43927550

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0016236123032957" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016236123032957</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2023.130681" target="_blank" >10.1016/j.fuel.2023.130681</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Amines as Steel Corrosion Inhibitors in Ethanol-Gasoline Blends

Popis výsledku v původním jazyce

Several amines with different chemical structures were tested as corrosion inhibitors for carbon steel in ethanol-gasoline blends (EGBs) using electrochemical methods. The electrochemical measurements were supplemented by surface analyses (SEM, XPS) and static corrosion tests. The findings established that the inhibition efficiency or passivation of steel in the tested EGBs was significantly influenced by the chemical structure and related physical properties of the amines. This inhibitory efficiency was somewhat dependent on the polarity of the corrosion environment and the formation of a corrosively aggressive aqueous microphase on the steel surface. Among the tested inhibitors, hexamethylenediamine, ethylenediamine, diethylenetriamine, triethylenetetramine, and piperazine exhibited the highest effectiveness. Using these amines, polarization resistances in the order of magnitude of MΩ∙cm2 were measured. The electrochemical results highlighted the superior efficiency of these amines, which was higher than 96% even at concentrations as low as 25 mg/L. At concentrations of 100 mg/L, these amines were able to compensate for 500 mg/L of the acetic acid and 20 mg/L of sodium chloride in the EGBs. The highest polarization resistance and efficiency of 9 MΩ∙cm2 and of 99.9%, respectively, were measured on mild steel in the presence of hexamethylenediamine. Its high efficiency was also confirmed during the immersion test, where an efficiency of 97.6% was found after three months of exposure.

Název v anglickém jazyce

Amines as Steel Corrosion Inhibitors in Ethanol-Gasoline Blends

Popis výsledku anglicky

Several amines with different chemical structures were tested as corrosion inhibitors for carbon steel in ethanol-gasoline blends (EGBs) using electrochemical methods. The electrochemical measurements were supplemented by surface analyses (SEM, XPS) and static corrosion tests. The findings established that the inhibition efficiency or passivation of steel in the tested EGBs was significantly influenced by the chemical structure and related physical properties of the amines. This inhibitory efficiency was somewhat dependent on the polarity of the corrosion environment and the formation of a corrosively aggressive aqueous microphase on the steel surface. Among the tested inhibitors, hexamethylenediamine, ethylenediamine, diethylenetriamine, triethylenetetramine, and piperazine exhibited the highest effectiveness. Using these amines, polarization resistances in the order of magnitude of MΩ∙cm2 were measured. The electrochemical results highlighted the superior efficiency of these amines, which was higher than 96% even at concentrations as low as 25 mg/L. At concentrations of 100 mg/L, these amines were able to compensate for 500 mg/L of the acetic acid and 20 mg/L of sodium chloride in the EGBs. The highest polarization resistance and efficiency of 9 MΩ∙cm2 and of 99.9%, respectively, were measured on mild steel in the presence of hexamethylenediamine. Its high efficiency was also confirmed during the immersion test, where an efficiency of 97.6% was found after three months of exposure.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Fuel

ISSN

0016-2361

e-ISSN

1873-7153

Svazek periodika

361

Číslo periodika v rámci svazku

Duben

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

21

Strana od-do

130681

Kód UT WoS článku

001150081500001

EID výsledku v databázi Scopus

2-s2.0-85181654290