Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method

This work examined the thermal behaviour of diesel engine produced soot and commercial carbon black using thermogravimetric analysis (TGA). It was found that during TGA analysis of the carbon matrices (at a temperature range commonly used for soot-in-oil content determination), a gradual mass loss o...

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Main Authors: Bredin, A., Larcher, A., Mullins, Benjamin
Format: Journal Article
Published: Elsevier Ltd 2011
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/18234
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author Bredin, A.
Larcher, A.
Mullins, Benjamin
author_facet Bredin, A.
Larcher, A.
Mullins, Benjamin
author_sort Bredin, A.
building Curtin Institutional Repository
collection Online Access
description This work examined the thermal behaviour of diesel engine produced soot and commercial carbon black using thermogravimetric analysis (TGA). It was found that during TGA analysis of the carbon matrices (at a temperature range commonly used for soot-in-oil content determination), a gradual mass loss occurred. This was attributed to pyrolysis effects and combustion processes occurring due to poor hydrodynamic design of some commercial thermobalances. This process resulted in a significant mass loss of the carbon during TGA. This finding may strongly effect soot-in-oil analysis conducted using current methods. Experiments were conducted using a range of soot-in-oil mixtures according to the widely used thermogravimetric standard method ASTM 5967-08 which showed a significant underestimation of the soot content in the oil as a result of carbon mass loss due to combustion and/or pyrolysis effects. An improved oil analysis method is proposed which provides a significantly increased accuracy of soot determination in lubricant oils.
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spelling curtin-20.500.11937-182342019-02-19T05:35:12Z Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method Bredin, A. Larcher, A. Mullins, Benjamin ASTM 5967 Lubricant Soot in Oil Oil Analysis This work examined the thermal behaviour of diesel engine produced soot and commercial carbon black using thermogravimetric analysis (TGA). It was found that during TGA analysis of the carbon matrices (at a temperature range commonly used for soot-in-oil content determination), a gradual mass loss occurred. This was attributed to pyrolysis effects and combustion processes occurring due to poor hydrodynamic design of some commercial thermobalances. This process resulted in a significant mass loss of the carbon during TGA. This finding may strongly effect soot-in-oil analysis conducted using current methods. Experiments were conducted using a range of soot-in-oil mixtures according to the widely used thermogravimetric standard method ASTM 5967-08 which showed a significant underestimation of the soot content in the oil as a result of carbon mass loss due to combustion and/or pyrolysis effects. An improved oil analysis method is proposed which provides a significantly increased accuracy of soot determination in lubricant oils. 2011 Journal Article http://hdl.handle.net/20.500.11937/18234 10.1016/j.triboint.2011.06.002 Elsevier Ltd fulltext
spellingShingle ASTM 5967
Lubricant
Soot in Oil
Oil Analysis
Bredin, A.
Larcher, A.
Mullins, Benjamin
Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method
title Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method
title_full Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method
title_fullStr Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method
title_full_unstemmed Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method
title_short Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis method
title_sort thermogravimetric analysis of carbon black and engine soot - towards a more robust oil analysis method
topic ASTM 5967
Lubricant
Soot in Oil
Oil Analysis
url http://hdl.handle.net/20.500.11937/18234