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An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing

Biodiesel is increasingly being used in automotive and other engine applications because of its potential to contribute to the reduction of CO(2) and other harmful emissions. However, biodiesel is known to be more corrosive in contact with metallic components than petroleum diesel. This work explore...

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Autores principales: Matbouei, M., Weston, D.P., Liang, Xingzhong, Hainsworth, S.V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier Ltd. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7486612/
https://www.ncbi.nlm.nih.gov/pubmed/32952206
http://dx.doi.org/10.1016/j.fuel.2020.119063
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author Matbouei, M.
Weston, D.P.
Liang, Xingzhong
Hainsworth, S.V.
author_facet Matbouei, M.
Weston, D.P.
Liang, Xingzhong
Hainsworth, S.V.
author_sort Matbouei, M.
collection PubMed
description Biodiesel is increasingly being used in automotive and other engine applications because of its potential to contribute to the reduction of CO(2) and other harmful emissions. However, biodiesel is known to be more corrosive in contact with metallic components than petroleum diesel. This work explores the corrosion of aluminium, steel, brass and copper metallic coupons exposed to B100 biodiesel at 25, 80, 90, 100, 110 and 120 °C. The metals that were chosen are commonly found in automotive engines. The B100 in each experiment was sampled at 48, 100, 150, 200 and 270 h and examined by GCMS to determine compositional changes. It was found that corrosion rates for copper were 10x faster than brass and approximately 100x faster than for mild steel, Al7075 and Al1050. Activation energies for corrosion were calculated from mass loss and ICP, with good correlation between the two methods for Cu containing samples. By mass loss, the activation energies for Cu, Brass, Al7075 and Al1050 were calculated to be −47.9 kJ mol(−1), −85.4 kJ mol(−1), −86.7 kJ mol(−1) and −54.4 kJ mol(−1), respectively. By ICP analysis, the activation energies for Cu, Brass, and Al7075 were calculated to be −57.9 kJ mol(−1), −90 kJ mol(−1) and −140 kJ mol(−1), respectively. Corrosion rates in brass and copper samples were faster owing to the direct reaction of copper with the fatty acid. The copper was found to cause chain scission and greater degradation of the biodiesel.
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spelling pubmed-74866122020-09-14 An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing Matbouei, M. Weston, D.P. Liang, Xingzhong Hainsworth, S.V. Fuel (Lond) Full Length Article Biodiesel is increasingly being used in automotive and other engine applications because of its potential to contribute to the reduction of CO(2) and other harmful emissions. However, biodiesel is known to be more corrosive in contact with metallic components than petroleum diesel. This work explores the corrosion of aluminium, steel, brass and copper metallic coupons exposed to B100 biodiesel at 25, 80, 90, 100, 110 and 120 °C. The metals that were chosen are commonly found in automotive engines. The B100 in each experiment was sampled at 48, 100, 150, 200 and 270 h and examined by GCMS to determine compositional changes. It was found that corrosion rates for copper were 10x faster than brass and approximately 100x faster than for mild steel, Al7075 and Al1050. Activation energies for corrosion were calculated from mass loss and ICP, with good correlation between the two methods for Cu containing samples. By mass loss, the activation energies for Cu, Brass, Al7075 and Al1050 were calculated to be −47.9 kJ mol(−1), −85.4 kJ mol(−1), −86.7 kJ mol(−1) and −54.4 kJ mol(−1), respectively. By ICP analysis, the activation energies for Cu, Brass, and Al7075 were calculated to be −57.9 kJ mol(−1), −90 kJ mol(−1) and −140 kJ mol(−1), respectively. Corrosion rates in brass and copper samples were faster owing to the direct reaction of copper with the fatty acid. The copper was found to cause chain scission and greater degradation of the biodiesel. Elsevier Ltd. 2021-02-01 2020-09-12 /pmc/articles/PMC7486612/ /pubmed/32952206 http://dx.doi.org/10.1016/j.fuel.2020.119063 Text en © 2020 Elsevier Ltd. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Full Length Article
Matbouei, M.
Weston, D.P.
Liang, Xingzhong
Hainsworth, S.V.
An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing
title An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing
title_full An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing
title_fullStr An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing
title_full_unstemmed An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing
title_short An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing
title_sort investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and b100 biodiesel from used cooking oil in exposure testing
topic Full Length Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7486612/
https://www.ncbi.nlm.nih.gov/pubmed/32952206
http://dx.doi.org/10.1016/j.fuel.2020.119063
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