diplomsko delo
Lara Planinc (Author), Blaž Likozar (Mentor)

Abstract

Uporaba fosilnih goriv je vedno bolj nezaželena, saj so ta zaradi izčrpavanja zalog in njihovega prispevka k izpustom ogljikovega dioksida v okolje znana kot ne-trajnostna in dolgoročno škodljiva okolju. Ena izmed potencialno obnovljivih in ogljično nevtralnih alternativ naftnim gorivom je biodizel, pridobljen iz mikroalg. Mikroalge so celične tovarne, ki jih poganja sončna svetloba. Pretvarjajo ogljikov dioksid v potencialna biogoriva, hrano, krmo in visokovrednostne bioaktivne snovi. Ideja o uporabi mikroalg kot vira goriva ni nova, a jo danes zaradi trajnostnih razlogov jemljejo veliko resneje. Namen dela diplomske naloge je bil spremljanje porabe oziroma pretvorbe lipidov mikroalg s časom pri predhodno ugotovljenih optimalnih pogojih procesa proizvodnje biodizla. Reakcijo sem ustavljala ob različnih časih in pridobila časovno odvisne podatke. Sledila je GC-MS analiza končnega tekočega produkta reakcije. Analizirala sem tudi vsebnost intermediatov in reaktantov ob različnih časih. V programskem jeziku Matlab sem nato na podlagi pridobljenih eksperimentalnih podatkov s pomočjo implicitne Runge-Kutta formule z ODE 23 tb solverjem poskusila narediti ujemajoč matematični model.

Keywords

biomasa;mikroalge;hidrodeoksigenacija;biogoriva;biodizel;šaržni reaktor;matematični model;diplomska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [L. Planinc]
UDC: 66.092(043.2)
COBISS: 121517315 Link will open in a new window
Views: 20
Downloads: 14
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Other data

Secondary language: English
Secondary title: Influence of process time on liquefaction of algal biomass by deoxygenation
Secondary abstract: The use of fossil fuels is increasingly undesirable, as they are known as non-sustainable and long-term harmful to the environment due to depletion of reserves and their contribution to carbon dioxide emissions into the environment. The most similar potentially renewable and carbon-neutral alternative to petroleum fuels is biodiesel derived from microalgae, which meets the global needs of transport consumption. Microalgae are sunlight-driven cell factories that convert carbon dioxide to potential biofuels, foods, feeds and high-value bioactives. The idea of using microalgae as a source of fuel is not new, but it is now being taken much more seriously because of sustainability reasons. The main goal of the diploma thesis was monitoring the consumption or conversion of lipids of microalgae over time under previously determined optimal conditions of the biodiesel production process. I stopped the reaction at different times and obtained time-dependent data. GC-MS analysis of the final liquid reaction product followed. I also analyzed the content of intermediates and reactants at different times. In the Matlab programming language, I then tried to make an adequate mathematical model based on the obtained experimental data using the implicit Runge-Kutta formula with the ODE 23 tb solver.
Secondary keywords: biomass;microalgae;hydrodeoxygenation;biodiesel;mathematical model;Univerzitetna in visokošolska dela;
Type (COBISS): Bachelor thesis/paper
Study programme: 1000372
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemijsko inženirstvo
Pages: 49 str.
ID: 16306631