Hidrotermalna karbonizacija digestata nakon proizvodnje bioplina iz energetskih kultura

master's thesis

• Title (english): Hydrothermal carbonization of digestate after biogas production from energy crops
• Author: Marin Pleško
• Mentor: Vanja Jurišić (mentor)
• Committee member: Vanja Jurišić (predsjednik povjerenstva)
• Committee member: Ana Matin (član povjerenstva)
• Committee member: Nikola Bilandžija (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Agricultural Technology, Storage and Transport); Zagreb
• Defense date and country: 2024-07-23, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Hidrotermalna karbonizacija (HTC) je proces koji se najčešće koristi kao predtretman za
tretman lignocelulozne biomase te komunalnog otpada, odnosno sirovina s visokim udjelom vode,
a kako bi se izbjegao proces sušenja, koji čini značajni ekonomski trošak. HTC je tehnologija koja
može osigurati novi vid iskorištenja velikih količina digestata proizvedenih u bioplinskim
postrojenjima. Procesom hidrotermalne karbonizacije nastaje hidrougljen (HC), čija svojstva su
približna onim niskokvalitetnog ugljena ili treseta. Za potrebe ovog istraživanja HTC procesa uzeti
su digestati dobiveni nakon proizvodnje bioplina iz poljoprivrednih energetskih kultura miskantus,
divlje proso i divovska trska. Cilj istraživanja bio je utvrditi ogrjevne vrijednosti HC nastalih iz tih
sirovina te utvrditi parametre važne s pozicije njegovog daljnjeg iskorištavanja. Rezultati
istraživanja su ukazali da je divlje proso najpogodnija sirovina za proizvodnju HC zbog najveće
gornje ogrjevne vrijednosti.

Abstract (english)

Hydrothermal carbonization (HTC) is a process commonly used as a pretreatment for
lignocellulosic biomass and municipal waste, specifically for raw materials with high water
content, in order to avoid the drying process, which incurs significant economic costs. HTC is a
technology that can provide a new way to utilize the large quantities of digestate produced in
biogas plants. The hydrothermal carbonization process results in the production of hydrochar
(HC), whose properties are similar to those of low-quality coal or peat. For the purposes of this
research, HTC processes utilized digestates obtained after biogas production from agricultural
energy crops such as miscanthus, switchgrass, and giant reed. The aim of the research was to
determine the calorific values of HC produced from these raw materials and to identify the
parameters important for its further utilization. Research results have indicated that switchgrass is
the most suitable raw material for the production of HC due to its highest gross calorific value.

• Keywords: hidrotermalna karbonizacija; hidrougljen; miskantus; divovska trska; divlje proso
• Keywords (english): hydrothermal carbonization; hydrochar; miscanthus; Arundo; switchgrass
• Language: croatian
• URN:NBN: urn:nbn:hr:204:262892
• Study programme: Title: Renewable energy sources in agriculture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra obnovljivih izvora energije u poljoprivredi (magistar/magistra obnovljivih izvora energije u poljoprivredi)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2024-08-28 08:48:55