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Torefikacija biomase v šaržnih reaktorjih
ID Korošec, Erik (Author), ID Likozar, Blaž (Mentor) More about this mentor... This link opens in a new window

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Abstract
Zaloge fosilnih goriv se hitro manjšajo, zato je pomembno najti alternativne metode pridobivanja goriva iz obnovljivih virov. Kot ena izmed rešitev se pojavlja biomasa, ki v svoji prvotni obliki še nima vseh želenih lastnosti učinkovitega goriva. Pri tem nam lahko pomaga proces torefikacije, s katero se bom ukvarjal v svojem delu. Namen diplomskega dela je bil torej preučiti proces torefikacije biomase. Izvedel bom poskuse v šaržnih reaktorjih z in brez dodatka H-beta zeolita pri različnih zadrževalnih časih ter reakcijskih temperaturah. Preveril bom vpliv torefikacije na masni izkoristek in termično stabilnost trdnega produkta s pomočjo TGA. Prav tako bom z uporabo GC-MS pridobil rezultate o vsebnosti spojin v kapljevinskem produktu. Z dobljenimi rezultati sem ugotovil, da se z naraščanjem reakcijske temperature in zadrževalnega časa viša izguba mase ter termična stabilnost trdnega vzorca. Za pridobivanje levulinske kisline so optimalne visoke reakcijske temperature in zadrževalni časi z dodatkom H-beta zeolita, za etanol pa nizke brez dodatka katalizatorja.

Language:Slovenian
Keywords:biomasa, torefikacija, H-beta zeolit, levulinska kislina
Work type:Bachelor thesis/paper
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2024
PID:20.500.12556/RUL-158982 This link opens in a new window
Publication date in RUL:26.06.2024
Views:79
Downloads:10
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Secondary language

Language:English
Title:Biomass torrefaction in batch reactors
Abstract:
Fossil fuel reserves are quickly decreasing, so it is important to find alternative methods of extracting fuel from renewable sources. As one of solutions appears biomass, which does not possess desirable fuel characteristics in its pure form. This is where torrefaction comes in, so I will engage with it in my thesis. The purpose of my thesis is to examine biomass torrefaction. I will conduct experiments in batch reactors with and without the addition of H-beta zeolite, applying different holding times and reaction temperatures. I will check the effect of torrefaction on mass yield and thermal stability using TGA. I will also use GC-MS to gain results about product distribution in liquid product. After obtaining results, I concluded that increasing reaction temperature and holding time results in higher weight loss and thermal stability of solid product. High reaction temperatures and retention times with the addition of H-beta zeolite are optimal to produce levulinic acid while low reaction temperatures without the addition of a catalyst are optimal for ethanol.

Keywords:biomass, torrefaction, H-beta zeolite, levulinic acid

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