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Chemische Analyse der Zusammensetzung von festen Rückständen nach Verbrennung von flüssigen und festen Treibstoffen: Methodenentwicklung und Validierung
Author(s) -
Trkmić M.,
Ćurković L.,
Ašperger D.
Publication year - 2012
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201200860
Subject(s) - combustion , residue (chemistry) , solid fuel , certified reference materials , process engineering , chemistry , analyte , analytical chemistry (journal) , materials science , chromatography , detection limit , engineering , organic chemistry , biochemistry
This paper deals with the development and validation of methods for identifying the composition of solid residue after liquid and solid fuel combustion in thermal power plant furnaces. The methods were developed for energy dispersive X‐ray fluorescence (EDXRF) spectrometer analysis. Due to the fuels used, the different composition and the location of creation of solid residue, it was necessary to develop two methods. The first method is used for identifying solid residue composition after fuel oil combustion ( Method 1 ), while the second method is used for identifying solid residue composition after the combustion of solid fuels, i. e. coal ( Method 2 ). Method calibration was performed on sets of 12 ( Method 1 ) and 6 ( Method 2 ) certified reference materials (CRM). CRMs and analysis test samples were prepared in pellet form using hydraulic press. For the purpose of method validation the linearity, accuracy, precision and specificity were determined, and the measurement uncertainty of methods for each analyte separately was assessed. The methods were applied in the analysis of real furnace residue samples.