The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends

 

Show simple item record

dc.contributor.advisor Woolard, Chris en_ZA
dc.contributor.author Vukeya, Hundzukani en_ZA
dc.date.accessioned 2015-09-30T13:42:58Z
dc.date.available 2015-09-30T13:42:58Z
dc.date.issued 2015 en_ZA
dc.identifier.citation Vukeya, H. 2015. The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/14132
dc.description.abstract Biodiesel can be used in diesel engines without significant modification of the engine prior to use because it has properties similar to those of petroleum diesel. Biodiesel, however, exhibits lower stability compared to petroleum diesel. Small differences in fuel properties such as component concentration or total acidity can lead to the formation of deposits which can reduce engine performance and increase maintenance requirements and costs. Thermo-oxidative stressing was performed in two reactor systems in this study. For comparative purposes both sets of experiments were performed at 140° C. The systems used were a quartz crystal microbalance (QCM) in which oxygen was limited and open glass flasks under flowing air (unlimited oxygen). To simplify analysis, diesel model compound systems were used in which full boiling range diesel was replaced with single compounds representing the classes of compounds found in petroleum diesel. The model compounds were n-hexadecane, tetralin and decalin. Fuel analysis was performed using gas chromatography (GC) with mass spectrometric (MS) and flame ionisation (FID) detection. Further analytical methods included Fourier transform infrared (FTIR) and ultraviolet-visible (UV-Vis) spectroscopy as well as electrospray ionisation-mass spectrometry (ESI-MS). en_ZA
dc.language.iso eng en_ZA
dc.subject.other Chemical Engineering en_ZA
dc.title The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Department of Chemical Engineering en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc (Eng) en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Vukeya, H. (2015). <i>The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/14132 en_ZA
dc.identifier.chicagocitation Vukeya, Hundzukani. <i>"The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2015. http://hdl.handle.net/11427/14132 en_ZA
dc.identifier.vancouvercitation Vukeya H. The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2015 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/14132 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Vukeya, Hundzukani AB - Biodiesel can be used in diesel engines without significant modification of the engine prior to use because it has properties similar to those of petroleum diesel. Biodiesel, however, exhibits lower stability compared to petroleum diesel. Small differences in fuel properties such as component concentration or total acidity can lead to the formation of deposits which can reduce engine performance and increase maintenance requirements and costs. Thermo-oxidative stressing was performed in two reactor systems in this study. For comparative purposes both sets of experiments were performed at 140° C. The systems used were a quartz crystal microbalance (QCM) in which oxygen was limited and open glass flasks under flowing air (unlimited oxygen). To simplify analysis, diesel model compound systems were used in which full boiling range diesel was replaced with single compounds representing the classes of compounds found in petroleum diesel. The model compounds were n-hexadecane, tetralin and decalin. Fuel analysis was performed using gas chromatography (GC) with mass spectrometric (MS) and flame ionisation (FID) detection. Further analytical methods included Fourier transform infrared (FTIR) and ultraviolet-visible (UV-Vis) spectroscopy as well as electrospray ionisation-mass spectrometry (ESI-MS). DA - 2015 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 T1 - The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends TI - The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends UR - http://hdl.handle.net/11427/14132 ER - en_ZA


Files in this item

This item appears in the following Collection(s)

Show simple item record