Torefikacija biomase v šaržnih reaktorjih

diplomsko delo

Erik Korošec (Author), Blaž Likozar (Mentor)

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.

Keywords

torefikacija;H-beta zeolit;levulinska kislina;diplomska dela;

Data

Language:	Slovenian
Year of publishing:	2024
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[E. Korošec]
UDC:	66.04(043.2)
COBISS:	202639107
Views:	92
Downloads:	12
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Biomass torrefaction in batch reactors
Secondary 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.
Secondary keywords:	biomass;torrefaction;H-beta zeolite;levulinic acid;Biomasa;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:	1 spletni vir (1 datoteka PDF (45 str.))
ID:	24473667