title: On-line analysis of gas-phase composition in the combustion chamber and particle emission characteristics during combustion of wood and waste in a small batch reactor.
abstract: The emission of particulate matter and gaseous compounds during combustion of wood and refuse-derived fuel in a small batch reactor is investigated by laser mass-spectrometric on-line measurement techniques for gas-phase analysis and simultaneous registration of physical aerosol properties (number size distribution). The gas-phase composition is addressed by a laser-based mass spectrometric method, namely, vacuum-UV single-photon ionization time-of-flight mass spectrometry (VUV-SPI-TOFMS). Particle-size distributions are measured with a scanning mobility particle sizer. Furthermore, a photoelectric aerosol sensor is applied for detection of particle-bound polycyclic aromatic hydrocarbons. The different phases of wood combustion are distinguishable by both the chemical profiles of gas-phase components (e.g., polycyclic aromatic hydrocarbons, PAH) and the particle-size distribution. Furthermore, short disturbances of the combustion process due to air supply shortages are investigated regarding their effect on particle-size distribution and gas-phase composition, respectively. It is shown that the combustion conditions strongly influence the particle-size distribution as well as on the emission of particle-bound polycyclic aromatic hydrocarbons.
authors.affiliation: Forschungszentrum für Umwelt und Gesundheit, Institut für Okologische Chemie, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Ferge
authors.forename: J
authors.initials: J
authors.lastname: Maguhn
authors.forename: K
authors.initials: K
authors.lastname: Hafner
authors.forename: F
authors.initials: F
authors.lastname: Mühlberger
authors.forename: M
authors.initials: M
authors.lastname: Davidovic
authors.forename: R
authors.initials: R
authors.lastname: Warnecke
authors.forename: R
authors.initials: R
authors.lastname: Zimmermann
mesh_terms: D000336:Aerosols; D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D017745:Incineration; D013058:Mass Spectrometry; D010316:Particle Size; D014934:Wood
chemical_list: D000336:Aerosols; D000393:Air Pollutants