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Emissions of monoterpenes and VOC during drying of sawdust in a continuous spouted bed
Karlstad University, Faculty of Technology and Science, Department of Energy, Environmental and Building Technology.ORCID iD: 0000-0002-0380-3533
2003 (English)In: Forest Products Journal 53(10):48-55,2003Article in journal (Refereed)
Abstract [en]

Emissions of volatile hydrocarbons are considered an environmental problem and a health problem. A wood-drying process is a source of volatile organic compound (VOC) emissions. Emissions of monoterpenes, as well as total VOCs, from a pilot-scale

continuous spouted bed dryer have been investigated regarding the influence of the drying medium temperature and the final sawdust moisture content. The emissions from sawdust of Norway spruce (Picea abies), dried at three temperature schedules (140, 170 and 200°C), was analyzed by a gas chromatograph with a mass

spectrometric detector and with a flame ionization detector. Emissions of terpenes and VOC per ovendry weight increased rapidly when the sawdust moisture content was reduced below 12 percent (wb).The concentration of VOCs in the drying medium, and the

amount of emitted monoterpenes, increased with drying medium temperature. The composition of different monoterpenes in the drying medium was not influenced by the sawdust s final moisture content. The relative amount of less volatile monoterpenes increased with drying medium temperature

Place, publisher, year, edition, pages
2003.
National Category
Energy Systems
Research subject
Environmental and Energy Systems
Identifiers
URN: urn:nbn:se:kau:diva-18768OAI: oai:DiVA.org:kau-18768DiVA, id: diva2:592408
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2014-10-29

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Granström, Karin

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