Proizvodnja bioplina iz miskantusa u ovisnosti o veličini čestica sirovine

master's thesis

• Title (english): Biogas production from miscanthus in dependence of the particle size of raw material
• Author: Vedrana Petrić
• 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: 2021-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Većina bioplinskih postrojenja u EU koristi kukuruznu silažu kao kosupstrat u proizvodnji bioplina. Iako je proizvodnja bioplina iz kukuruzne silaže najučinkovitija i tehnički najnaprednija opcija, mogla bi rezultirati ozbiljnom konkurencijom između opskrbe energijom i hranom, što dugoročno nije poželjno. Iz tog razloga, energetski usjevi, poput miskantusa, predstavljaju idealno rješenje, što u gospodarskom, što u ekonomskom pogledu. U tom kontekstu, važno je utvrditi i razinu biorazgradivosti sirovine, ovisno o veličini ulazne čestice, budući da je za očekivati da ovaj parametar značajno utječe na dostupnost sirovine za proces digestije. Rezultati analiza su pokazali određene varijacije između parametara koji utječu na energetsku iskoristivost, odnosno sadržaj vode i pepela, sadržaj dobivenog bioplina i biometana u retencijskom periodu (danima). Dobiveni rezultati, potkrepljuju tvrdnju da veličina frakcija ulaznog supstrata utječe na proizvodnju bioplina i biometana. Uspoređujući s prethodno provedenim istraživanjima, može se zaključiti da , gledano s ekološkog i energetskog aspekta, miskantus može bitizamjena za kukuružnu silažu u procesu anaerobne digestije.

Abstract (english)

Most biogas plants in the EU use corn silage as a co-substrate in biogas production. Although biogas production from corn silage is the most efficient and technically advanced option, it could result in serious competition between energy supply and food, which is not desirable in the long run. For this reason, energy crops, such as miscanthus, are an ideal solution, both economically and economically. In this context, it is important to determine the level of biodegradability of the raw material, depending on the size of the input particles, since it is expected that this parameter significantly affects the availability of raw materials for the digestion process. The results of the analysis showed certain variations between the parameters that affect the energy efficiency, ie the content of water and ash, the content of the obtained biogas and biomethane in the retention period (days). The obtained results support the claim that the size of the input substrate fraction affects the production of biogas and biomethane. Comparing with previous research, it can be concluded that, from an ecological and energy point of view, miscanthus can be a substitute for corn silage in the process of anaerobic digestion.

• Keywords: miskantus; veličina čestice; bioplin
• Keywords (english): miscanthus; particle size; biogas
• Language: croatian
• URN:NBN: urn:nbn:hr:204:699423
• Study programme: Title: Agribusiness and Rural Development; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka agrobiznisa i ruralnog razvitka (magistar/ magistra inženjer/inženjerka agrobiznisa i ruralnog razvitka)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-12-21 08:38:01