AUTHORS: Nerijus Striūgas, Marius Sadeckas, Peter Sommersacher, Stefan Retschitzegger
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ABSTRACT: This study focuses on the measurement of spontaneous alkali release from biomass pellet during combustion in order to compare two different techniques. Flame emission spectrometry (FES) was used for optical detection of chemiliuminescence spectra of selected metals using optical bandpass filters mounted on ICCD (Intensified Charge Coupled Device) camera Andor iStar DH734. To gain better understanding about alkali-metal release processes and to compare obtained results, test runs with a single particle reactor (SPR) connected with an inductively coupled plasma mass spectrometer (ICP-MS) have been performed. By coupling the reactor to an ICP-MS, time-resolved release profiles of relevant aerosol forming elements (K, Na) were determined and compared with those obtained by FES experiments.
KEYWORDS: biomass, pellet, straw, wood, combustion, alkali metals, FES, ICP-MS
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