Impact of gas-phase chemistry on the composition of biomass pyrolysis products
Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (m...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kozlov, Alexander [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Schlagwörter: |
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| Anmerkung: |
© Akadémiai Kiadó, Budapest, Hungary 2015 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of thermal analysis and calorimetry - Springer Netherlands, 1998, 122(2015), 3 vom: 11. Aug., Seite 1089-1098 |
|---|---|
| Übergeordnetes Werk: |
volume:122 ; year:2015 ; number:3 ; day:11 ; month:08 ; pages:1089-1098 |
| Links: |
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| DOI / URN: |
10.1007/s10973-015-4951-z |
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OLC2049841493 |
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| 520 | |a Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. | ||
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| 650 | 4 | |a Radical trap | |
| 650 | 4 | |a Mechanism of thermochemical decomposition of toluene | |
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| 700 | 1 | |a Donskoy, Igor |4 aut | |
| 700 | 1 | |a Shamansky, Vitaly |4 aut | |
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10.1007/s10973-015-4951-z doi (DE-627)OLC2049841493 (DE-He213)s10973-015-4951-z-p DE-627 ger DE-627 rakwb eng 660 VZ Kozlov, Alexander verfasserin aut Impact of gas-phase chemistry on the composition of biomass pyrolysis products 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2015 Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. Biomass pyrolysis TG–MS Radical trap Mechanism of thermochemical decomposition of toluene Thermodynamic modeling Svishchev, Denis aut Donskoy, Igor aut Shamansky, Vitaly aut Enthalten in Journal of thermal analysis and calorimetry Springer Netherlands, 1998 122(2015), 3 vom: 11. Aug., Seite 1089-1098 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:122 year:2015 number:3 day:11 month:08 pages:1089-1098 https://doi.org/10.1007/s10973-015-4951-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 122 2015 3 11 08 1089-1098 |
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10.1007/s10973-015-4951-z doi (DE-627)OLC2049841493 (DE-He213)s10973-015-4951-z-p DE-627 ger DE-627 rakwb eng 660 VZ Kozlov, Alexander verfasserin aut Impact of gas-phase chemistry on the composition of biomass pyrolysis products 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2015 Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. Biomass pyrolysis TG–MS Radical trap Mechanism of thermochemical decomposition of toluene Thermodynamic modeling Svishchev, Denis aut Donskoy, Igor aut Shamansky, Vitaly aut Enthalten in Journal of thermal analysis and calorimetry Springer Netherlands, 1998 122(2015), 3 vom: 11. Aug., Seite 1089-1098 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:122 year:2015 number:3 day:11 month:08 pages:1089-1098 https://doi.org/10.1007/s10973-015-4951-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 122 2015 3 11 08 1089-1098 |
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10.1007/s10973-015-4951-z doi (DE-627)OLC2049841493 (DE-He213)s10973-015-4951-z-p DE-627 ger DE-627 rakwb eng 660 VZ Kozlov, Alexander verfasserin aut Impact of gas-phase chemistry on the composition of biomass pyrolysis products 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2015 Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. Biomass pyrolysis TG–MS Radical trap Mechanism of thermochemical decomposition of toluene Thermodynamic modeling Svishchev, Denis aut Donskoy, Igor aut Shamansky, Vitaly aut Enthalten in Journal of thermal analysis and calorimetry Springer Netherlands, 1998 122(2015), 3 vom: 11. Aug., Seite 1089-1098 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:122 year:2015 number:3 day:11 month:08 pages:1089-1098 https://doi.org/10.1007/s10973-015-4951-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 122 2015 3 11 08 1089-1098 |
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10.1007/s10973-015-4951-z doi (DE-627)OLC2049841493 (DE-He213)s10973-015-4951-z-p DE-627 ger DE-627 rakwb eng 660 VZ Kozlov, Alexander verfasserin aut Impact of gas-phase chemistry on the composition of biomass pyrolysis products 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2015 Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. Biomass pyrolysis TG–MS Radical trap Mechanism of thermochemical decomposition of toluene Thermodynamic modeling Svishchev, Denis aut Donskoy, Igor aut Shamansky, Vitaly aut Enthalten in Journal of thermal analysis and calorimetry Springer Netherlands, 1998 122(2015), 3 vom: 11. Aug., Seite 1089-1098 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:122 year:2015 number:3 day:11 month:08 pages:1089-1098 https://doi.org/10.1007/s10973-015-4951-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 122 2015 3 11 08 1089-1098 |
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10.1007/s10973-015-4951-z doi (DE-627)OLC2049841493 (DE-He213)s10973-015-4951-z-p DE-627 ger DE-627 rakwb eng 660 VZ Kozlov, Alexander verfasserin aut Impact of gas-phase chemistry on the composition of biomass pyrolysis products 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2015 Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. Biomass pyrolysis TG–MS Radical trap Mechanism of thermochemical decomposition of toluene Thermodynamic modeling Svishchev, Denis aut Donskoy, Igor aut Shamansky, Vitaly aut Enthalten in Journal of thermal analysis and calorimetry Springer Netherlands, 1998 122(2015), 3 vom: 11. Aug., Seite 1089-1098 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:122 year:2015 number:3 day:11 month:08 pages:1089-1098 https://doi.org/10.1007/s10973-015-4951-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 122 2015 3 11 08 1089-1098 |
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Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. © Akadémiai Kiadó, Budapest, Hungary 2015 |
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Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. © Akadémiai Kiadó, Budapest, Hungary 2015 |
| abstract_unstemmed |
Abstract In the present paper, significance of gas-phase chemical reactions occurring in thermal analysis furnace is evaluated. Free radical species form as a result of biomass thermal decomposition and may give rise to chain reactions. Gas portion emitted by the sample analyzed flows to detector (mass spectrometer in our study) in finite time interval, so chemical reactions may change its composition. Quantitative assessment of this change was made based on data about amount of active species that may initiate kinetic chains. Radical trap method was used to determine radical species amount. Toluene vapors was fed to carrier gas and flowed in thermal analysis furnace reacting with radical species produced from biomass thermal decomposition. Stable radical species—benzyl—is reaction product that can be detected by mass spectrometer. Results show that radical species concentration in gas produced from biomass gasification (639 ppm for pyrolysis stage and 3581 ppm for char gasification stage) is too small to change gas-phase composition significantly in time interval for which gas has been achieving detector. Comprehensive kinetic model for toluene oxidation in oxidizer lack conditions is developed based on widely known mechanisms. Radical species amount estimates may be useful as initial information in heterogeneous combustion modeling. © Akadémiai Kiadó, Budapest, Hungary 2015 |
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Impact of gas-phase chemistry on the composition of biomass pyrolysis products |
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Svishchev, Denis Donskoy, Igor Shamansky, Vitaly |
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