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undergraduate thesis
Hidroliza drvne biomase
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. urn:nbn:hr:149:802445
Pavlek, Emilija
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

Pavlek, E. (2021). Hidroliza drvne biomase (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:802445

Pavlek, Emilija. "Hidroliza drvne biomase." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:802445

Pavlek, Emilija. "Hidroliza drvne biomase." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:802445

Pavlek, E. (2021). 'Hidroliza drvne biomase', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 June 2024, https://urn.nsk.hr/urn:nbn:hr:149:802445

Pavlek E. Hidroliza drvne biomase [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2021 [cited 2024 June 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:802445

E. Pavlek, "Hidroliza drvne biomase", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:149:802445

Metadata
TitleHidroliza drvne biomase
Title (english)Hydrolysis of wood biomass
AuthorEmilija Pavlek
MentorMarin Kovačić (mentor)
Committee memberMarin Kovačić (predsjednik povjerenstva)
Committee memberAna Lončarić Božić (član povjerenstva)
Committee memberAna Vrsalović Presečki (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2021-07-16, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Povećanje potražnje za energijom širom svijeta i sve veća eksploatacija primarnih energetskih izvora rezultira osiromašenjem zaliha fosilnih goriva. Alternativa konvencionalnim gorivima upotreba je obnovljivih izvora energije kao što je biomasa za dobivanje biogoriva nove generacije. Fermentacija biomase u alkohol jedna je od najrazvijenijih metoda kemijske konverzije biomase, a prethode joj postupci hidrolize pogodni za dobivanje šećera. Za ovaj rad ključan je upravo korak koji prethodi fermentaciji, hidroliza, provedena u blagim uvjetima s koncentriranom sumpornom kiselinom kao katalizatorom. Nakon određenog vremena hidroliza je rezultirala produktom kojeg odlikuje kristalna struktura i bijela boja, a karakteriziran je termogravimetrijskom analizom i infracrvenom spektroskopijom s Fourierovom transformacijom. Rezultati dobiveni karakterizacijom, potvrđuju funkcionalne skupine karakteristične za šećere, međutim ukazuju i na znatnu prisutnost anorganskih soli preostalih nakon neutralizacije kiselinom.
Abstract (english)
Increasing energy demand around the world and exploitation of primary energy sources results in the depletion of fossil fuel stocks. An alternative to conventional fuels is the use of renewable energy sources such as biomass to produce next-generation biofuels. Fermentation of biomass into alcohol is one of the most developed method of chemical conversion of biomass, and it is preceded by hydrolysis processes suitable for obtaining sugar. Crucial to this work is precisely the step preceding fermentation, hydrolysis, carried out under mild conditions with concentrated sulfuric acid as a catalyst. After some time, the hydrolysis resulted in a product characterized by a crystalline structure and white color, and was characterized by thermogravimetric analysis and infrared spectroscopy with Fourier transform. The results obtained by characterization, confirm the functional groups of characteristics for sugars, however, indicate the significant presence of inorganic salts remaining after acid neutralization.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:802445
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
Access conditionsAccess restricted to students and staff of home institution
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Created on2023-04-12 11:25:07