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Emissions from residential pellet combustion of an invasive acacia species
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. Centre for Environmental and Marine Studies, Department of Environment and Planning, University of Aveiro, Portugal. (Thermochemical Energy Conversion Laboratory)ORCID iD: 0000-0002-6521-4160
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2019 (English)In: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 140, p. 319-329Article in journal (Refereed) Published
Abstract [en]

Currently, different types of raw materials are under investigation to fulfil the demand for pellet-based renewable energy. The aim of this study was to experimentally quantify and characterise the gaseous and particulate matter (PM10) emissions from the combustion of a pelletised invasive species growing in the Portuguese coastal areas. The combustion of acacia pellets in a stove used for domestic heating led to a noticeable production of environmentally relevant contaminants, such as carbon monoxide (CO, 2468 ± 485 mg MJ−1), sulphur dioxide (SO2, 222 ± 115 mg MJ−1) and nitrogen oxides (NOx, 478 ± 87 mg MJ−1). Besides gaseous pollutant emissions, substantial particle emissions (118 ± 14 mg MJ−1) were also generated. Particles consisted mostly of inorganic matter, mainly alkaline metals, sulphur and chlorine. About 25%wt. of the PM10 emitted had carbonaceous nature. The chromatographically resolved organic compounds were dominated by anhydrosugars, especially levoglucosan (284 μg g−1 PM10), and several types of phenolic compounds. Retene (8.77 μg g−1 PM10) was the chief compound among polyaromatic hydrocarbons.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 140, p. 319-329
Keywords [en]
Acacia, Gaseous emissions, PM10, OC/EC, organic markers, pellet stove
National Category
Energy Systems
Research subject
environmental science
Identifiers
URN: urn:nbn:se:umu:diva-157432DOI: 10.1016/j.renene.2019.03.057ISI: 000466250700027Scopus ID: 2-s2.0-85063341865OAI: oai:DiVA.org:umu-157432DiVA, id: diva2:1297263
Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-09-02Bibliographically approved

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Carvalho, Ricardo

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