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undergraduate thesis
Određivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:936589
Tašner, Hrvoje
University of Zagreb
Faculty of Chemical Engineering and Technology

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

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Tašner, H. (2020). Određivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:936589

Tašner, Hrvoje. "Određivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:936589

Tašner, Hrvoje. "Određivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:936589

Tašner, H. (2020). 'Određivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:936589

Tašner H. Određivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:936589

H. Tašner, "Određivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:936589

Metadata
TitleOdređivanje utjecaja reakcijskih parametara na sintezu izobutilnih estera masnih kiselina
Title (english)Determining the influence of reaction parameters on the synthesis of isobutil fatty acid esters
AuthorHrvoje Tašner
MentorFabio Faraguna (mentor)
Committee memberFabio Faraguna (predsjednik povjerenstva)
Committee memberAnte Jukić (član povjerenstva)
Committee memberMarko Racar (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2020-09-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Abstract
Biodizel je ekološki prihvatljiva i održiva zamjena za petrokemijski dizel. Prema kemijskom sastavu biodizel obuhvaća monoalkilne estere masnih kiselina i jednostavnih alkohola. Sirovine za proizvodnju biodizela čine razna biljna i otpadna ulja poput suncokretovog, repičinog ulja te ulja kikirikija i soje, dok su od alkohola za sada najzastupljeniji metanol i etanol. U posljednje vrijeme istražuje se mogućnost korištenja i drugih alkohola poput butanola, izobutanoal i pentanola kao sirovina za proizvodnju biodizela. Biodizel se proizvodi reakcijom transesterifikacije ulja s alkoholom. U ovom radu obrađen je utjecaj četiri reakcijska parametra na bazno kataliziranu transesterifikaciju suncokretova ulja s izobutanolom uz kalijev hidroksid kao katalizator. Parametri čiji utjecaj je određivan su: vrijeme reakcije (1 - 3 h) , temperatura (40 - 80 °C), molarni omjer alkohola i ulja (6:1 - 12:1) te maseni udio katalizatora (1 - 3 %). Pomoću programskog paketa Desin-Expert 11 napravljen je Box-Behnkenov plan 28 pokusa. Rezultat svakog pokusa je iskorištenje reakcije. Iskorištenje je određeno pomoću 1H NMR analize reakcijske smjese. Na temelju eksperimentalnih rezultata napravljen je model ovisnosti iskorištenja o reakcijskim parametrima. Dobivenim modelom napravljena su tri slučaja optimizacije. Optimalni uvjeti za jedan od slučajeva su: vrijeme reakcije od 1 sat pri temperaturi od 71,98 uz omjer izobutnola i ulja 10,17:1 sa 1,72 % KOH katalizatora. Previđeno iskorištenje iznosi 99,69 %.
Abstract (english)
Biodiesel is ecologically acceptable a sustainable substitute for petrochemical diesel. By its chemical composition biodiesel is a mixture of monoalkyl esters of fatty acid and simple alcohols. Biodiesel is produced from different waste and cooking oils such as sunflower, castor, peanut and soybean oils. Nowadays, most used alcohols are methanol and ethanol. In recent times, other alcohols, such as butanol, isobutanol and pentanol, are being investigated for biodiesel production. Biodiesel is produced by the reaction of transesterifiction of oil with alcohol. In this paper, the influence of four reaction parameters on base catalysed transesterificaton of sunflower oil with isobutanol was studied. Potassium hydroxide was used as catalyst. Reaction parameters were: reaction time (1 - 3 h), temperature (40 - 80 °C), molar ratio of alcohol and oil (6:1 - 12:1) and mass percentage of catalyst (1 - 3 %). Using Desin-Experst software a Box-Behnken plan with 28 experiments was made. Result of every experiment was the biodiesel yield which was determined by 1H NMR spectroscopic analysis. Based on the experimental results, a model of the dependence that takes into account the yield on the reaction parameters was made. Using the model three optimisation cases were made. Optimal reaction parameters for one of those cases were: 1 h of reaction time at 71.98 °C using 10,17:1 ratio of isobutanol and oil and 1.72 % of KOH catalyst. The estimated yield was 99.69%.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:936589
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: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Advanced materials and technologies
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2023-05-09 08:51:54