Zbrinjavanje posliježetvenih ostataka uljarice procesom pirolize

master's thesis

• Title (english): Disposing postharvested remains of oilseeds by the process of pyrolysis
• Author: Iva Gelo
• Mentor: Vanja Jurišić (mentor)
• Committee member: Vanja Jurišić (predsjednik povjerenstva)
• Committee member: Ana Matin (član povjerenstva)
• Committee member: Ana Pospišil (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Sustainable Technologies and Renewable Energy Sources); Zagreb
• Defense date and country: 2017-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Uslijed visoke potražnje za fosilnim, neobnovljivim izvorima energije i globalnim klimatskim promjenama, obnovljivi izvori energije predstavljaju sve veći interes javnosti. Jedan od obnovljivih izvora je biomasa koja predstavlja obilan izvor ugljika i sposobnost da se konvertira u prikladna kruta, tekuća i plinovita goriva. Cilj ovog rada bio je istražiti načine zbrinjavanja posliježetvenih ostataka soje i uljane repice, uzgojene u Republici Hrvatskoj, procesom pirolize.
Analiza kemijskog... More sastava biomase istraživanih uljarica pokazala je varijacije u praćenim gorivim svojstvima. Za biomasu uljane repice dobivene su prosječne vrijednosti za sadržaj vode od 8,83 %, pepela od 7,4 %, koksa od 12,36 %, fiksiranog ugljika od 5,61 % te hlapivih tvari od 87,64 %. Najzastupljeniji element je kisik s 49,42 %. Za biomasu soje dobivene su prosječne vrijednosti za sadržaj vode od 7,67 %, pepela od 5,16 %, koksa od 13,69 %, fiksiranog ugljika od 8,93 % te hlapivih tvari od 86,31 %. Najzastupljeniji element je ugljik s 46,84 %. Nakon procesa pirolize analizirana su svojstva dobivenog biougljena.
Podaci dobiveni u ovom istraživanju potvrdili su posliježetvene ostatke uljarica kao vrlo dobre sirovine za proizvodnju energije procesom pirolize. Less

Abstract (english)

Due to high demand for fossil nonrenewable energy sources and global climate changes, renewable energy sources represent big public interest. One of renewable sources is biomass. Biomass is mighty source of carbon. It has ability to convert to solid, liquid and gaseous fuels. The aim of this paper was to investigate manners of disposing postharvested remains of soybean and rapeseed produced in Croatia by the process of pyrolysis.
Analysis of chemical composition of biomass showed... More variation in observed combustible properties. Rapeseed biomass showed average values of 8,83% for water content; 7,4% for cinder; 12,36% for coke; 5,61% for fixed carbon and 87,64% for volatile substances. The most common element is oxygen which showed average value of 49,42%. Soybean biomass showed average values of 7,67% for water content; 5,16 for cinder; 13,69% for coke; 8,93% for fixed carbon and 86,31% for volatile substances. The most common element is carbon which showed average value of 46,84%. After process of pyrolysis were analyzed properties of gained biochar.
Results of this study confirmed postharvested remains of oilseeds as very good raw materials for energy production by the process of pyrolysis. Less

• Keywords: posliježetveni ostaci; soja; uljana repica; piroliza; biougljen
• Keywords (english): postharvest remains; soybean; rapeseed; pyrolysis; biochar
• Language: croatian
• URN:NBN: urn:nbn:hr:204:693255
• Study programme: Title: Agroecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologija (magistar/ magistra inženjer/inženjerka agroekologija)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-10-25 12:20:24