Corrosion Rates of Stainless Steels in Renewable Biofuel Sources of Refined Rapeseed Oil, Waste Cooking Oil and Animal Waste Lard

Biofuels, like any high-affinity chemical mixtures; can cause tribological effects at interfaces with metallics (ferrous-nonferrous) and non-metallics due to medium assisted activation of corrosion by unsaturated components. The damages; corrosion and tribological effects on surfaces (abrasive wears and edge/cosmetic corrosion), also include contamination and biofuels replacement due to quality decrease. The most common phenomena include the oxidation of biodiesel which increases its affinity towards metallic counterparts, i.e. automotive parts or processing apparatus, via formation of peroxide compounds by oleic acid, linoleic acid, and linolenic acids. This corrosion receptive medium causes pitting; due to high water content and high electronegativity of dissolved oxygen, and galvanic corrosion; due to high electrical conductivity. The main factors for higher aggressive corrosivity of biofuels can be summarized as high electrical conductivity, polarity, solubility, and hygroscopicity. This paper closely reviews the materials deterioration in contact with biofuels and possible corrosions.

show abstract

Corrosion of brass subjected to cast-off cooking oil blended with diesel

Govindharajan¹,

Raman²,

Shanmugam³

et al. 2021

Materials Testing

View full text Add to dashboard Cite

With the aim of leaving a smaller ecological footprint and to develop fuels which will change the energy needs of the future in a sustainable manner, the present study aims at investigating the corrosion phenomenon of brass using biodiesel fuel from cast-off cooking oil (CCO) in various blending ratios with commercial diesel (5 %, 10 % and 20 %) on brass. The mechanism of corrosion of brass in biodiesel has not been adequately investigated, and in the literature there is still a drop in the knowledge of the corrosion of brass from which many diesel engine parts are made. The corrosion rate of brass has been evaluated by mass loss and electrochemical methods. As a complementary technique, conductivity was monitored before and after each test. Surface morphology was examined by optical microscope. The surface morphology of brass samples in NaCl was coated in dark deposits that indicated corrosion. Some pitting was found in O99, and no significant change was found in oil-diesel blends. There is a positive correlation between the corrosivity and conductivity of the test media. The wettability studies also assisted in determining the non-corrosive nature of biodiesel.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Corrosion Rates of Stainless Steels in Renewable Biofuel Sources of Refined Rapeseed Oil, Waste Cooking Oil and Animal Waste Lard

Cited by 3 publications

References 35 publications

Corrosion testing and evaluation of gas oil desulfurization reactor structure material in the presence of fatty acids

Corrosion testing and evaluation of gas oil desulfurization reactor structure material in the presence of fatty acids

Biofuels-related materials deterioration in biorefineries, transportation and internal combustion engines: a technical review

Corrosion of brass subjected to cast-off cooking oil blended with diesel

Contact Info

Product

Resources

About