prikaz prve stranice dokumenta Matematičko modeliranje aldolne adicije u različitim tipovima reaktora
  Download
PDF 964.27 KB
undergraduate thesis
Matematičko modeliranje aldolne adicije u različitim tipovima reaktora
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. urn:nbn:hr:149:609215
Sokač, Tea
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

Sokač, T. (2015). Matematičko modeliranje aldolne adicije u različitim tipovima reaktora (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:609215

Sokač, Tea. "Matematičko modeliranje aldolne adicije u različitim tipovima reaktora." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:609215

Sokač, Tea. "Matematičko modeliranje aldolne adicije u različitim tipovima reaktora." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:609215

Sokač, T. (2015). 'Matematičko modeliranje aldolne adicije u različitim tipovima reaktora', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 23 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:609215

Sokač T. Matematičko modeliranje aldolne adicije u različitim tipovima reaktora [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2015 [cited 2024 November 23] Available at: https://urn.nsk.hr/urn:nbn:hr:149:609215

T. Sokač, "Matematičko modeliranje aldolne adicije u različitim tipovima reaktora", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:149:609215

Metadata
TitleMatematičko modeliranje aldolne adicije u različitim tipovima reaktora
Title (english)Mathematical modeling of aldol addition in different types of reactors
AuthorTea Sokač
MentorĐurđa Vasić-Rački (mentor)
Committee memberĐurđa Vasić-Rački (predsjednik povjerenstva)
Committee memberZvjezdana Findrik Blažević (član povjerenstva)
Committee memberMarija Vuković Domanovac (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2015-09-03, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Reaction Engineering
Abstract
U ovom radu je numerički na temelju razvijenog modela implementiranog u programu SCIENTIST, ispitivana aldolna adicija dihidroksiacetona na N-Cbz-3-aminopropanala koju katalizira enzim D – fruktoza – 6 – fosfat aldolaza (FSA). Isto tako je istraživana ova reakcija spojena s oksidacijom N-Cbz-3-aminopropanola u N-Cbz-3-aminopropanala u kaskadnu reakciju. Oksidacija alkohola koju katalizira alkohol dehidrogenaza (ADH), je provedena uz regeneraciju koenzima NAD+ s enzimom NADH oksidaza. Modeli su razvijeni za šaržni, kotlasto protočni i reaktor s dotokom. Potrebni kinetički parametri su uzeti iz literature. Dobiveni rezultati pokazuju da konverzija mjerodavnog reaktanta u šaržnom reaktoru kod aldolne adicije ovisi o količini FSA enzima, te o početnom omjeru dva reaktanta Konverzija u protočno kotlastom reaktoru raste s vremenom zadržavanja, a u reaktoru s dotokom konverzija s povećanjem brzine dotoka opada. U kaskadnoj reakciji oksidacija alkohola plus aldolna adicija, iskorištenje na aldolu u šaržnom reaktoru raste s povećanjem koncentracije dihidroksiacetona, a opada s povećanjem koncentracije alkohola. Iskorištenje ovisi o stabilnosti enzima u reakcijama. Iskorištenje na aldolu ovisi o vremenu zadržavanja u kotlasto protočnom reaktoru, a o brzini dotoka u reaktoru s dotokom. Najveće iskorištenje na aldolu je moguće ostvariti u šaržnom reaktoru uz suvišak dihidroksiacetona.
Abstract (english)
In this work, with developed model in SCIENTIST, aldol addition of dihydroxyacetone (DHA) to N-Cbz-3-aminopropanal, which is catalyzed by enzyme D-fructose-6-phosphate aldolase (FSA), is numerical examined. Also this reaction connected with oxidation N-Cbz-3- aminopropanola in N-Cbz-3-aminopropanal is study in cascade reaction. Oxidation of alcohol, which is catalyzed by alcohol dehydrogenaese (ADH), is examined with regeneration coenzyme NAD+ with enzyme NADH oxidase. Models are developed for batch,fed-batch and continuously stirred tank (CSTR) reactor. Kinetic parameters were taken from literature. Results are demonstrating that conversion of limited reactant in batch reactor in aldol addition depends on concentration of FSA enyzme and on starting ratio of two reactants. Conversion in CSTR increases with residence time and in fed-batch reactor it decreases when the flow is growing. In cascade reaction, oxidation of alcohol plus aldol addition, yield on aldol in batch reactor increases when the concetration of dihydroxyacetone increases and it decreases when the concetration of alcohol increases. Yield of the reaction depend on stability of enzymes. Yield on aldol depends on residence time in CSTR and in fed-batch reactor it depends on the flow. The maximum yield on aldol is possible to reach in batch reactor with excess of dihydroxyacetone (DHA).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:609215
Study programmeTitle: Environmental Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2016-09-20 14:15:52