Kemijsko-termalne značajke ugljena i pepela ugljena

master's thesis

• Title: Kemijsko-termalne značajke ugljena i pepela ugljena : diplomski rad
• Title (english): Chemical and thermal characteristics of coals and coal ashes : master’s thesis
• Author: Marko Bilić
• Mentor: Palma Orlović-Leko (mentor)
• Committee member: Palma Orlović-Leko
• Committee member: Ivo Galić
• Committee member: Ivan Dragičević
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Chemistry); Zagreb
• Defense date and country: 2014-11-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Mining

Abstract

U radu je istražen kemijski sastav i pojedina termalna svojstva smeđeg ugljena, lignita i treseta s područja Livna (BiH) kao i njihovog pepela. Donje ogrijevne vrijednosti (na osnovu suh) dobivene za smeđi ugljen, lignit i treset iznose: 25,46 MJ/kg; 19,36 MJ/kg i 17,14 MJ/kg. Smeđi ugljen ima nizak sadržaj pepela, dok lignit i treset imaju sklonost stvaranja veće količine pepela pri izgaranju. Pepeo smeđeg ugljena pokazuje visok sadržaj SiO2, SO3, Fe2O3 i Al2O3, dok pepeo nastao iz lignita karakterizira visok sadržaj Fe2O3, SiO2. i Al2O3. Pepeo treseta bogat je na SiO2, CaO, SO3 i Al2O3. Temperatura taljenja pepela u oksidacijskoj i redukcijskoj atmosferi također je razmatrana.

Abstract (english)

Abstract: Aspects of the chemical composition and some thermal characteristics of coals and peat, from Livno (B&H), as well as coal ashes have been investigated in this study. The net calorific values(dry basis) obtained for sub - bituminous coal, lignite and peat were: 25.46 MJ/Kg; 19.36 MJ/Kg and 17.14 MJ/Kg. Sub - bituminous coal has low content of ash, while lignite and peat tend to form high amounts of ash. The net calorific values obtained for sub - bituminous coal, lignite and peat were: 25.46 MJ/Kg; 19.36 MJ/Kg and 17.14 MJ/Kg. Sub-bituminous coal ash displays high contents of SiO2, SO3, Fe2O3 and Al2O3, whereas ash derived from lignite is characterized by high Fe2O3, SiO2 and Al2O3 contents. Peat ash is rich in SiO2, CaO, SO3 and Al2O3. Coal ash fusion temperature in the reduction and oxidation atmosphere has been considered, too.

• Keywords: ugljen; pepeo ugljena; kemijski sastav; termalne karakteristike
• Keywords (english): coal; coal ash; chemical composition; thermal characteristics
• Language: croatian
• URN:NBN: urn:nbn:hr:169:969464
• Study programme: Title: Mining; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka rudarstva (magistar/magistra inženjer/inženjerka rudarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2016-01-18 08:20:07