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master's thesis
Sinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. urn:nbn:hr:149:544246
Mišetić, Mislav
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Mišetić, M. (2021). Sinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:544246

Mišetić, Mislav. "Sinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:544246

Mišetić, Mislav. "Sinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:544246

Mišetić, M. (2021). 'Sinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:544246

Mišetić M. Sinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2021 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:544246

M. Mišetić, "Sinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:149:544246

Metadata
TitleSinteza aditiva za snižavanje tecišta na osnovi maleinskog anhidrida za dizelsko i biodizelsko gorivo
Title (english)Synthesis of pour point additives based on maleic anhydride for diesel and biodiesel fuel
AuthorMislav Mišetić
MentorFabio Faraguna (mentor)
Committee memberFabio Faraguna (predsjednik povjerenstva)
Committee memberAnte Jukić (član povjerenstva)
Committee memberMirela Leskovac (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2021-09-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Cilj ovog rada bio je provesti sintezu šest polimernih aditiva na osnovi maleinskog anhidrida i ispitati kako sintetizirani aditiv djeluje na niskotemperaturna svojstva dizelskog i biodizelskog goriva. Reakcijom polimerizacije sintetizirani su polimeri poli(maleinski anhidrid-ko-vinil-acetat) koristeći pri tome različite množinske omjere polaznih monomera (MA:VA=50:50 i 80:20). Nakon pročišćavanja uslijedila je funkcionalizacija polimernih molekula tijekom koje dolazi do otvaranja anhidridnog prstena i vezanja alkilnog lanca alkohola (heksanol, oktanol, dodekanol) na polimer reakcijom esterifikacije. Korištenjem triju alkohola ispitano je kako duljina alkilnog lanca alkohola utječe na topljivost polimernog aditiva u gorivu te na svojstva aditiviranog goriva. Čistoća polimernih aditiva nakon sinteze i tijekom pročišćavanja praćena je infracrvenom spektroskopijom s Fourierovom transformacijom (FTIR) i nuklearnom magnetskom rezonancijom (NMR). Kromatogafijom na propusnom gelu (GPC) određene su krivulje raspodjele molekulskih masa i prosjeci molekulskih masa pripremljenih aditiva. Diferencijalnom pretražnom kalorimetrijom (DSC) snimljeni su termogrami mješavina MAVA aditiva i goriva na temelju kojih je potvrđeno kako dodatak aditiva ima veći utjecaj na sniženje temperatura početka i maksimuma kristalizacije dizela u odnosu na biodizel. Prema standardiziranim ispitnim metodama izvršena su mjerenja temperature tečenja (ASTM D 5950) i filtrabilnosti (EN 116) aditiviranih goriva iz kojih se zaključuje kako polimerni aditivi s dodekanolom ne utječu na filtrabilnost, ali snižavaju tecište dizelskog goriva. Najveći utjecaj na niskotemperaturna svojstva vidljiv je u slučaju korištenja aditiva s omjerom monomera 80:20 i dodekanolom kao sredstvom za funkcionalizaciju koji je snizio temperaturu tečenja dizelskog goriva za 21 °C. U slučaju korištenja biodizela, izmjereno je kako aditiv može smanjiti točku tečenja i točku filtrabilnosti goriva za do 3 °C.
Abstract (english)
The aim of this study was to synthesize six polymer additives based on maleic anhydride in order to investigate how additives can improve low-temperature properties of diesel and biodiesel fuel. Polymerisation of poly(maleic anhydride-co-vinyl acetate) was performed with different molar ratios of monomers (MA:VA=50:50 and 80:20). After the synthesis and purification of polymers functionalization step was performed during which the anhydride ring opened and the alkyl chain of the alcohol (hexanol, octanol, dodecanol) was chemically bonded to the polymer. Three alcohols were used to examin how length of the alkyl chain of alcohol affects solubility of polymer additive in the fuel and also how it affects fuel properties. Purity of polymer additives after synthesis and during purification was examined by analysis of FTIR and 1H NMR spectrum. GPC analysis was used to determine the molecular weight distribution curves and the averages of molecular weights of prepared additives. DSC thermograms of mixtures of MAVA additives and fuels indicate that addition of additives has a greater impact on lowering the onset temperature and the temperature of first crystallization maximum of diesel fuel compared to biodiesel fuel. According to standardized test methods, measurements of pour point (ASTM D 5950) and cold filter plugging point (EN 116) were performed. It is concluded that polymer additives with dodecanol do not affect filterability, but they lower pour point of diesel fuel. The biggest influence on low-temperature properties is seen in the case of using additives with monomer ratio of 80:20 and dodecanol as a functionalization agent that lowered pour point of diesel fuel by 21 °C. In the case of biodiesel, it has been measured that additive can reduce pour point and cold filter plugging point by up to 3 °C.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:544246
ProjectNumber: UIP-2019-04-5242
Title: Razvoj funkcionalnih biogoriva i (bio)aditiva te ispitivanje primjenskih svojstava mješavina s mineralnim gorivima
Title: Development of functional biofuels and (bio)additives and characterization of blends with mineral fuels
Acronym: FunBioFA
Leader: Fabio Faraguna
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: UIP
Study programmeTitle: Chemical Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2023-04-17 12:23:07