Off-gassing reduction of stored wood pellets by adding acetylsalicylic acid

Document identifier: oai:DiVA.org:ltu-76608
Access full text here:10.1016/j.fuproc.2019.106218
Keyword: Engineering and Technology, Mechanical Engineering, Energy Engineering, Teknik och teknologier, Maskinteknik, Energiteknik, Antioxidant, Storage, Emission, Carbon monoxide, Volatile organic compounds, Aspirin
Publication year: 2020
Relevant Sustainable Development Goals (SDGs):

The SDG label(s) above have been assigned by OSDG.ai

Abstract:

During transportation and storage of wood pellets various gases are formed leading to toxic atmosphere. Various influencing factors and measures reducing off-gassing have already been investigated. The present study aims at applying an antioxidant, acetylsalicylic acid (ASA), to reduce off-gassing from wood pellets by lowering wood extractives oxidation. Therefore, acetylsalicylic acid was applied in industrial and laboratory pelletizing processes. Pine and spruce sawdust (ratio 1:1) were pelletized with adding 0-0.8% (m/m) ASA. Glass flasks measurements confirmed off-gassing reduction by adding ASA for all wood pellets investigated.The biggest effect was achieved by adding 0.8% (m/m) ASA in the industrial pelletizing experiments where the emission of volatile organic compounds (VOC_tot) was reduced by 82% and a reduction of carbon monoxide (CO) and carbon dioxide (CO₂) emissions by 70% and 51%, respectively, could be achieved. Even an addition of 0.05% (m/m) ASA led to off-gassing reduction by >10%. A six week storage experiment to investigate the long-term effectivity of ASA addition revealed, that antioxidant addition was effective in reducing CO-, CO₂- and VOC_tot-release, especially during the first four weeks of the storage experiment, after which time the relative reduction effect was significantly decreased.

Authors

Irene Sedlmayer

BEST – Bioenergy and Sustainable Technologies GmbH, Graz, Austria. Technische Universität Wien, Institute of Chemical, Environmental and Bioscience Engineering, Vienna, Austria
Other publications >>

Waltraud Bauer-Emhofer

BEST – Bioenergy and Sustainable Technologies GmbH, Graz, Austria
Other publications >>

Walter Haslinger

Luleå tekniska universitet; Energivetenskap; BEST – Bioenergy and Sustainable Technologies GmbH, Graz, Austria.
Other publications >>

Hermann Hofbauer

Technische Universität Wien, Institute of Chemical, Environmental and Bioscience Engineering, Vienna, Austria
Other publications >>

Christoph Schmidl

BEST – Bioenergy and Sustainable Technologies GmbH, Graz, Austria
Other publications >>

Elisabeth Wopienka

BEST – Bioenergy and Sustainable Technologies GmbH, Graz, Austria
Other publications >>

Record metadata

Click to view metadata

	
    header: 
        identifier: oai:DiVA.org:ltu-76608
        datestamp: 2021-04-19T12:51:01Z
        setSpec: SwePub-ltu
    metadata: 
        mods: 
            @attributes: 
                version: 3.7
            recordInfo: 
                recordContentSource: ltu
                recordCreationDate: 2019-11-04
            identifier: 
                http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76608
                10.1016/j.fuproc.2019.106218
                2-s2.0-85073827270
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Off-gassing reduction of stored wood pellets by adding acetylsalicylic acid
            abstract: 
During transportation and storage of wood pellets various gases are formed leading to toxic atmosphere. Various influencing factors and measures reducing off-gassing have already been investigated. The present study aims at applying an antioxidant acetylsalicylic acid (ASA) to reduce off-gassing from wood pellets by lowering wood extractives oxidation. Therefore acetylsalicylic acid was applied in industrial and laboratory pelletizing processes. Pine and spruce sawdust (ratio 1:1) were pelletized with adding 0-0.8% (m/m) ASA. Glass flasks measurements confirmed off-gassing reduction by adding ASA for all wood pellets investigated.The biggest effect was achieved by adding 0.8% (m/m) ASA in the industrial pelletizing experiments where the emission of volatile organic compounds (VOCtot) was reduced by 82% and a reduction of carbon monoxide (CO) and carbon dioxide (CO2) emissions by 70% and 51% respectively could be achieved. Even an addition of 0.05% (m/m) ASA led to off-gassing reduction by >10%. A six week storage experiment to investigate the long-term effectivity of ASA addition revealed that antioxidant addition was effective in reducing CO- CO2- and VOCtot-release especially during the first four weeks of the storage experiment after which time the relative reduction effect was significantly decreased.

            subject: 
                    @attributes: 
                        lang: eng
                        authority: uka.se
                    topic: 
                        Engineering and Technology
                        Mechanical Engineering
                        Energy Engineering
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Teknik och teknologier
                        Maskinteknik
                        Energiteknik
                    @attributes: 
                        lang: eng
                    topic: Antioxidant
                    @attributes: 
                        lang: eng
                    topic: Storage
                    @attributes: 
                        lang: eng
                    topic: Emission
                    @attributes: 
                        lang: eng
                    topic: Carbon monoxide
                    @attributes: 
                        lang: eng
                    topic: Volatile organic compounds
                    @attributes: 
                        lang: eng
                    topic: Aspirin
                    @attributes: 
                        lang: swe
                        authority: ltu
                    topic: Energiteknik
                    genre: Research subject
                    @attributes: 
                        lang: eng
                        authority: ltu
                    topic: Energy Engineering
                    genre: Research subject
            language: 
                languageTerm: eng
            genre: 
                publication/journal-article
                ref
            note: 
                Published
                6
                
Validerad;2019;Nivå 2;2019-11-04 (johcin)

            name: 
                    @attributes: 
                        type: personal
                    namePart: 
                        Sedlmayer
                        Irene
                    role: 
                        roleTerm: aut
                    affiliation: BEST – Bioenergy and Sustainable Technologies GmbH Graz Austria. Technische Universität Wien Institute of Chemical Environmental and Bioscience Engineering Vienna Austria
                    @attributes: 
                        type: personal
                    namePart: 
                        Bauer-Emhofer
                        Waltraud
                    role: 
                        roleTerm: aut
                    affiliation: BEST – Bioenergy and Sustainable Technologies GmbH Graz Austria
                    @attributes: 
                        type: personal
                    namePart: 
                        Haslinger
                        Walter
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Luleå tekniska universitet
                        Energivetenskap
                        BEST – Bioenergy and Sustainable Technologies GmbH Graz Austria. 
                    @attributes: 
                        type: personal
                    namePart: 
                        Hofbauer
                        Hermann
                    role: 
                        roleTerm: aut
                    affiliation: Technische Universität Wien Institute of Chemical Environmental and Bioscience Engineering Vienna Austria
                    @attributes: 
                        type: personal
                    namePart: 
                        Schmidl
                        Christoph
                    role: 
                        roleTerm: aut
                    affiliation: BEST – Bioenergy and Sustainable Technologies GmbH Graz Austria
                    @attributes: 
                        type: personal
                    namePart: 
                        Wopienka
                        Elisabeth
                    role: 
                        roleTerm: aut
                    affiliation: BEST – Bioenergy and Sustainable Technologies GmbH Graz Austria
            originInfo: 
                dateIssued: 2020
                publisher: Elsevier
            relatedItem: 
                @attributes: 
                    type: host
                titleInfo: 
                    title: Fuel processing technology
                identifier: 
                    0378-3820
                    1873-7188
                part: 
                    detail: 
                            @attributes: 
                                type: volume
                            number: 198
                            @attributes: 
                                type: artNo
                            number: 106218
            physicalDescription: 
                form: print
            typeOfResource: text