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undergraduate thesis
Kako sintetizirati biodizel iz otpadnog taloga kave
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. urn:nbn:hr:149:791648
Gorički, Viktorija
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

Gorički, V. (2019). Kako sintetizirati biodizel iz otpadnog taloga kave (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:791648

Gorički, Viktorija. "Kako sintetizirati biodizel iz otpadnog taloga kave." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:791648

Gorički, Viktorija. "Kako sintetizirati biodizel iz otpadnog taloga kave." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:791648

Gorički, V. (2019). 'Kako sintetizirati biodizel iz otpadnog taloga kave', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:791648

Gorički V. Kako sintetizirati biodizel iz otpadnog taloga kave [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2019 [cited 2024 December 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:791648

V. Gorički, "Kako sintetizirati biodizel iz otpadnog taloga kave", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:149:791648

Metadata
TitleKako sintetizirati biodizel iz otpadnog taloga kave
Title (english)How to synthesize biodiesel from waste coffee grounds
AuthorViktorija Gorički
MentorAleksandra Sander (mentor)
Committee memberAleksandra Sander (predsjednik povjerenstva)
Committee memberJasna Prlić Kardum (član povjerenstva)
Committee memberJuraj Šipušić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2019-09-11, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Biodizel je ekološki prihvatljivo obnovljivo gorivo koje se može koristiti u dizelskim motorima. Početna sirovina najčešće su biljna ulja. U ovom radu razmatra se mogućnost dobivanja biodizela iz ulja ekstrahiranog iz otpadnog taloga kave te svježih zrna kave. Proizvodnja biodizela iz otpadnog ulja uključuje: prikupljanje i sušenje otpadnog taloga kave, ekstrakciju ulja iz prikupljene sirovine nakon čega slijedi pročišćavanje niskotemperaturnim eutektičkim otapalom te u konačnici konverzija u biodizel koji također zahtjeva pročišćavanje od zaostalih nečistoća, alokohola i glicerola pomoću niskotemperaturnog eutektičkog otapala. Obje istražene sirovine sadrže bliske koncentracije ulja a ulje iz svježeg zrna kave ima veći udio slobodnih masnih kiselina. Koncentracije metilnih estera masnih kiselina u oba sintetizirana biodizela ne ovise o tome je li biodizel sintetiziran iz svježeg zrna ili otpadnog taloga kave iako je koncentracija slobodnog i ukupnog glicerola nešto veća u biodizelu dobivenom iz svježeg zrna kave. Niskotemperaturno eutektičko otapalo na bazi kalijeva karbonata uspješno reducira koncentraciju slobodnih masnih kiselina a ono na bazi kolin klorida glicerol i gliceride.
Abstract (english)
Biodiesel is an environmentally friendly renewable fuel that can be used in diesel engines. The most common feedstock is vegetable oil. This paper explores the possibilities of producing biodiesel from waste coffee grounds and fresh coffee beans. Biodiesel production from waste coffee oil involves: collection and drying of waste coffee grounds, oil extraction from collected feedstock followed by purification with deep eutectic solvent and ultimately conversion to biodiesel and purification from residual impurities, alcohol and glycerol using deep eutectic solvent. While both feedstocks had similar oil content, oil from fresh coffee beans contained higher amounts of free fatty acids. Concentrations of fatty acid methyl esters were similar for both feedstocks, but the biodiesel synthesised from fresh coffee beans oil had more glycerol and glycerides. Potassium carbonate based deep eutectic solvent successfully reduced free fatty acid content in feedstocks and choline chloride based solvent reduced concentrations of glycerol and glycerides in biodiesel.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:791648
Study programmeTitle: Chemical Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
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Created on2023-02-15 08:18:13