The Use of Amines as Steel Corrosion Inhibitors in Butanol-Gasoline Blends

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F24%3A43929223" target="_blank" >RIV/60461373:22320/24:43929223 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/24:43929223

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0016236124015618" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016236124015618</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2024.132413" target="_blank" >10.1016/j.fuel.2024.132413</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Use of Amines as Steel Corrosion Inhibitors in Butanol-Gasoline Blends

Popis výsledku v původním jazyce

Butanol is an interesting component used for blending gasoline fuels. However, the polar nature of butanol allows the solubility of water and ionic compounds in butanol-gasoline blends (BGBs) making them aggressive to mild steel. Amines, such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentaamine, morpholine, piperazine, and hexamethylenediamine, were tested as corrosion inhibitors for mild steel in BGBs. Additionally, the influence of the acetic acid and sodium chloride concentrations on the inhibition efficiency was examined. Electrochemical impedance spectroscopy and potentiodynamic polarization were employed for the measurements, complemented by static immersion testing and an XPS surface analysis. The highest inhibition efficiency was demonstrated for diethylenetriamine, triethylenetetramine, and hexamethylenediamine, achieving a value of 95 % or more at a concentration of 100 mg/L. The formation of ionic pairs involving protonated amines and chlorides was also confirmed. The XPS analysis revealed a very thin passive layer of iron oxides, which may form in the presence of amines, protecting mild steel in BGBs.

Název v anglickém jazyce

The Use of Amines as Steel Corrosion Inhibitors in Butanol-Gasoline Blends

Popis výsledku anglicky

Butanol is an interesting component used for blending gasoline fuels. However, the polar nature of butanol allows the solubility of water and ionic compounds in butanol-gasoline blends (BGBs) making them aggressive to mild steel. Amines, such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentaamine, morpholine, piperazine, and hexamethylenediamine, were tested as corrosion inhibitors for mild steel in BGBs. Additionally, the influence of the acetic acid and sodium chloride concentrations on the inhibition efficiency was examined. Electrochemical impedance spectroscopy and potentiodynamic polarization were employed for the measurements, complemented by static immersion testing and an XPS surface analysis. The highest inhibition efficiency was demonstrated for diethylenetriamine, triethylenetetramine, and hexamethylenediamine, achieving a value of 95 % or more at a concentration of 100 mg/L. The formation of ionic pairs involving protonated amines and chlorides was also confirmed. The XPS analysis revealed a very thin passive layer of iron oxides, which may form in the presence of amines, protecting mild steel in BGBs.

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

374

Číslo periodika v rámci svazku

Říjen

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

132413

Kód UT WoS článku

001267882800001

EID výsledku v databázi Scopus

2-s2.0-85198266225