Cyclic Potentiometric Polarization and Resistance of Mild Steel in an Environment of Alcohols and their Blends with Gasoline

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F19%3A43917898" target="_blank" >RIV/60461373:22320/19:43917898 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/pdf/10.1021/acsomega.9b03264" target="_blank" >https://pubs.acs.org/doi/pdf/10.1021/acsomega.9b03264</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsomega.9b03264" target="_blank" >10.1021/acsomega.9b03264</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cyclic Potentiometric Polarization and Resistance of Mild Steel in an Environment of Alcohols and their Blends with Gasoline

Popis výsledku v původním jazyce

Nowadays, there is an effort to increase the more widespread use of biofuels that are a renewable energy source in transportation and an alternative to conventional, petroleum-based fuels. These biofuels include alcohols such as biomethanol, bioethanol and biobutanol that have a high octane number, but generally different physical and chemical properties than petroleum fuels. The different properties of alcohols may cause their low material compatibility with carbon steel. Here, we used cyclic potentiodynamic polarization (CPP) to study the behavior of carbon steel in an environment of alcohols and alcohol-gasoline blends (AGBs). Using CPP, we proved that the corrosion of mild steel can be significantly influenced by alcohol properties, such as the chain length, pKa, and solubility of oxygen and water. In the environment of pure alcohols (not blended by gasoline), a very good passivation ability of steel was proven, especially for n-butanol. In AGBs, steel corrosion can also be influenced by the gasoline amount. When these pure alcohols or their gasoline blends are contaminated by water containing chlorides and organic acids, the corrosion rate of carbon steel can increase by up to four orders of magnitude. In an anhydrous environment of alcohols, the CPP can give results with a very good informative value.

Název v anglickém jazyce

Cyclic Potentiometric Polarization and Resistance of Mild Steel in an Environment of Alcohols and their Blends with Gasoline

Popis výsledku anglicky

Nowadays, there is an effort to increase the more widespread use of biofuels that are a renewable energy source in transportation and an alternative to conventional, petroleum-based fuels. These biofuels include alcohols such as biomethanol, bioethanol and biobutanol that have a high octane number, but generally different physical and chemical properties than petroleum fuels. The different properties of alcohols may cause their low material compatibility with carbon steel. Here, we used cyclic potentiodynamic polarization (CPP) to study the behavior of carbon steel in an environment of alcohols and alcohol-gasoline blends (AGBs). Using CPP, we proved that the corrosion of mild steel can be significantly influenced by alcohol properties, such as the chain length, pKa, and solubility of oxygen and water. In the environment of pure alcohols (not blended by gasoline), a very good passivation ability of steel was proven, especially for n-butanol. In AGBs, steel corrosion can also be influenced by the gasoline amount. When these pure alcohols or their gasoline blends are contaminated by water containing chlorides and organic acids, the corrosion rate of carbon steel can increase by up to four orders of magnitude. In an anhydrous environment of alcohols, the CPP can give results with a very good informative value.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

ACS Omega

ISSN

2470-1343

e-ISSN

—

Svazek periodika

4

Číslo periodika v rámci svazku

25

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

21548-21558

Kód UT WoS článku

000503370500076

EID výsledku v databázi Scopus

2-s2.0-85076236106