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undergraduate thesis
Predobrada sirovine za sintezu biodizela kolonskom ekstrakcijom
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. urn:nbn:hr:149:555180
Bikić, Antonija
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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Bikić, A. (2021). Predobrada sirovine za sintezu biodizela kolonskom ekstrakcijom (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:555180

Bikić, Antonija. "Predobrada sirovine za sintezu biodizela kolonskom ekstrakcijom." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:555180

Bikić, Antonija. "Predobrada sirovine za sintezu biodizela kolonskom ekstrakcijom." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:555180

Bikić, A. (2021). 'Predobrada sirovine za sintezu biodizela kolonskom ekstrakcijom', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:555180

Bikić A. Predobrada sirovine za sintezu biodizela kolonskom ekstrakcijom [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2021 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:555180

A. Bikić, "Predobrada sirovine za sintezu biodizela kolonskom ekstrakcijom", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:149:555180

Metadata
TitlePredobrada sirovine za sintezu biodizela kolonskom ekstrakcijom
Title (english)Pretreatment of feedstocks for biodiesel synthesis by column extraction
AuthorAntonija Bikić
MentorAleksandra Sander (mentor)
Committee memberAleksandra Sander (predsjednik povjerenstva)
Committee memberJasna Prlić Kardum (član povjerenstva)
Committee memberMarijana Kraljić Roković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2021-07-02, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Biodizel se dobiva reakcijom transesterifikacije triglicerida, najčešće iz svježih i otpadnih biljnih ulja te životinjskih masti. Predmet istraživanja ovog rada je otpadno jestivo ulje odnosno njegova predobrada s ciljem smanjenja sadržaja slobodnih masnih kiselina koje su u ulju prisutne kao posljedica njegove termičke obrade. Sirovina mora sadržavati manje od 1% slobodnih masnih kiselina da bi bila pogodna za bazično kataliziranu transesterifikaciju, u suprotnom može doći do saponifikacije te smanjene konverzije triglicerida u alkilne estere masnih kiselina. Početnoj sirovini izmjerena je gustoća, površinska napetost te međupovršinska napetost između sirovine i otapala korištenog za pročišćavanje. Sirovina je nakon toga pročišćena kolonskom ekstrakcijom u Karrovoj koloni pomoću eutektičkog otapala na bazi kalijeva karbonata. Uzorci ulja su nakon izlaska iz kolone centrifugirani kako bi se osigurala potpuna separacija ulja i otapala te im je titracijom određen kiselinski broj. Praćeni su utjecaji hidrodinamičkih uvjeta te masenog omjera ulja i otapala na efikasnost ekstrakcije.
Abstract (english)
Biodiesel is produced by transesterification of triglycerides with alcohol, most commonly from fresh and waste edible oils and animal fats. The research topic of this work is waste edible oil and its pretreatment with the purpose of reducing the content of free fatty acids. During heat treatment, such as cooking, the acidity of the oil often increases. Feedstock for base-catalyzed transesterification must contain less than 1% of free fatty acids to avoid saponification and to assure good conversion of triglycerides to fatty acid alkyl esters. The feedstock was characterized by measuring its density, surface tension and interfacial tension between the oil and the solvent used for purification. It was then purified via continuous extraction in a Karr extraction column with a potassium carbonate-based deep eutectic solvent. After leaving the column, the oil samples were centrifuged to completely separate the solvent from the oil and the content of free fatty acids was determined by titration. The influences of hydrodynamic conditions and mass ratio of solvent to oil on extraction efficiency were investigated.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:555180
ProjectNumber: KK.01.1.1.04.0070
Title: Razvoj sustava za ispitivanje višefaznih strujanja i izgaranja s ciljem povećanja istraživačkih aktivnosti znanstvenog i poslovnog sektora
Acronym: RESIN
Leader: Milan Vujanović
Jurisdiction: Croatia
Funder: MRRFEU
Funding stream: Nema
Study programmeTitle: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Environmental chemistry and green 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 conditionsOpen access
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Created on2023-03-23 09:35:46