Matematičko modeliranje dvostupanjskog kontinuiranog procesa proizvodnje bioetanola

master's thesis

• Title (english): Mathematical modelling of two-step continuous process of bioethanol production
• Author: Mario Dukić
• Mentor: Predrag Horvat (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology); Zagreb
• Defense date and country: 2012-04-11, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

Bioetanol je obnovljivi izvor energije koji se primjenjuje kao gorivo ili dodatak gorivima. U proizvodnji bioetanola jedna od najčešćih sirovina jest šećerna repa zbog visokog udjela saharoze. Za fermentaciju šećera iz šećerne repe primjenjuje se tehnološka operacija ekstrakcije. U ovom radu je provedena kontinuirana ekstrakcija i fermentacija šećera iz šećerne repe u koloni za ekstrakciju i bioreaktoru s mješalom pri različitim parametrima procesa (temperatura, vrijeme zadrţavanja i koncentracija biomase). Eksperimentalni podaci pri temperaturi 36 °C, vremenu zadržavanja od 20 min i koncentraciji biomase od 30 g/L bili su uspoređeni s vrijednostima izračunatim primjenom matematičkog modela koji je izrađen za reaktor prvog stupnja odnosno ekstrakcijsku kolonu te su pokazali relativno dobar stupanj sukladnosti, što znači da je model verbalno i matematički ispravno postavljen.

Abstract (english)

Bioethanol is the renewable source of energy that can be applied as a fuel or an additive to fuels. In bioethanol production sugar beet is frequently used because of its high sucrose content. Technological operation of extraction is being used for fermentation of sugar from sugar beet. In this thesis a continuous extraction and beet sugar fermentation in extraction colon and stirred-tank bioreactor has been done under the various set of parameters (temperature, retention time and biomass concentration). Experimental data under the temperature of 36°C, retention time of 20 min and biomass concentration of 30 g/L have been compared to the values made by mathematical model application that has been made for firstdegree-reactor (extraction colon), and yet shown relatively good and degree of complementary. The model therefore has a correct verbal and mathematical background.

• Keywords: bioetanol; šećerna repa; kvasac; ekstrakcija; matematičko modeliranje
• Keywords (english): bioethanol; sugar beet; yeast; extraction; mathematical modelling
• Language: croatian
• URN:NBN: urn:nbn:hr:159:352739
• Study programme: Title: Bioprocess Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva (magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-05-08 10:41:03