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Influence of Operating Conditions and Coal Properties on NOx and N2O Emissions in Pressurized Fluidized Bed Combustion of Subbituminous Coals
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SYSNO ASEP 0104760 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Influence of Operating Conditions and Coal Properties on NOx and N2O Emissions in Pressurized Fluidized Bed Combustion of Subbituminous Coals Title Vliv pracovních podmínek a vlastností uhlí na emise NOx a N2O ze spalování subbitumenózních uhlí v tlakové fluidní vrstvě Author(s) Svoboda, Karel (UCHP-M) RID, ORCID, SAI
Pohořelý, Michael (UCHP-M) RID, ORCID, SAISource Title Fuel. - : Elsevier - ISSN 0016-2361
Roč. 83, 7-8 (2004), s. 1095-1103Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords NOx and N2O emissions ; combustion Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects IAA4072801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z4072921 - UCHP-M Annotation Our experimental study is aimed at finding effects of operating conditions in Pressurized Fluidized Bed Combustion (PFBC) of subbituminous coals differing in ash content/composition and in particle size distribution on nitrogen oxide ( NOx + N2O) emissions. The experiments have been performed on a smaller laboratory apparatus with ID = 8 cm. The effects of operating pressure (0.1 - 1 MPa), temperature of the fluidized bed ( 800 - 900 oC), freeboard temperature and oxygen concentration (3 - 10 vil. %) in flue gas on the nitrogen oxides emissions is relatively complex, coupled with temperature of burning coal particles. The NOx emissions decrease with increasing pressure, the N2O emissions can exhibite a maximum at pressure 0.2 - 0.5 MPa or can be practically constant. At higher temperatures (900 oC) the N2O emissions are small/negligible. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2005
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