Modeling of alkali metal release during biomass pyrolysis
(2017) In Proceedings of the Combustion Institute 36(2). p.2243-2251- Abstract
The release of alkali metals (Na and K) during biomass pyrolysis was numerically and experimentally investigated using Laser-Induced Breakdown Spectroscopy technique that could extend the measurements of alkali metal concentration to the sooty pyrolysis stage. Two distinct peaks of metal concentrations were observed at the pyrolysis stage and at the gasification stage. Since during the pyrolysis stage a large temperature gradient exists inside the particle numerical simulations were performed to elucidate the experimental measurements and extract the kinetic data. For Na and K release the activation energies were in the range of 218 to 248 kJ/mole and 168 and 198 kJ/mole respectively. Equilibrium calculations were performed to identify... (More)
The release of alkali metals (Na and K) during biomass pyrolysis was numerically and experimentally investigated using Laser-Induced Breakdown Spectroscopy technique that could extend the measurements of alkali metal concentration to the sooty pyrolysis stage. Two distinct peaks of metal concentrations were observed at the pyrolysis stage and at the gasification stage. Since during the pyrolysis stage a large temperature gradient exists inside the particle numerical simulations were performed to elucidate the experimental measurements and extract the kinetic data. For Na and K release the activation energies were in the range of 218 to 248 kJ/mole and 168 and 198 kJ/mole respectively. Equilibrium calculations were performed to identify the stable Na and K compounds and their phases during the pyrolysis stage of the particle.
(Less)
- author
- Hesameddin, Fatehi LU ; Li, Z. S. LU ; Bai, X. S. LU and Aldén, M. LU
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Alkali metal release, Biomass, In situ measurement, LIBS, Pyrolysis
- in
- Proceedings of the Combustion Institute
- volume
- 36
- issue
- 2
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000397458900068
- scopus:85013658502
- ISSN
- 1540-7489
- DOI
- 10.1016/j.proci.2016.06.079
- language
- English
- LU publication?
- yes
- id
- 83bf210e-d05a-4c8e-b3c5-dd36598044e5
- date added to LUP
- 2016-12-22 13:31:31
- date last changed
- 2025-01-12 18:21:35
@article{83bf210e-d05a-4c8e-b3c5-dd36598044e5,
abstract = {{<p>The release of alkali metals (Na and K) during biomass pyrolysis was numerically and experimentally investigated using Laser-Induced Breakdown Spectroscopy technique that could extend the measurements of alkali metal concentration to the sooty pyrolysis stage. Two distinct peaks of metal concentrations were observed at the pyrolysis stage and at the gasification stage. Since during the pyrolysis stage a large temperature gradient exists inside the particle numerical simulations were performed to elucidate the experimental measurements and extract the kinetic data. For Na and K release the activation energies were in the range of 218 to 248 kJ/mole and 168 and 198 kJ/mole respectively. Equilibrium calculations were performed to identify the stable Na and K compounds and their phases during the pyrolysis stage of the particle.</p>}},
author = {{Hesameddin, Fatehi and Li, Z. S. and Bai, X. S. and Aldén, M.}},
issn = {{1540-7489}},
keywords = {{Alkali metal release; Biomass; In situ measurement; LIBS; Pyrolysis}},
language = {{eng}},
number = {{2}},
pages = {{2243--2251}},
publisher = {{Elsevier}},
series = {{Proceedings of the Combustion Institute}},
title = {{Modeling of alkali metal release during biomass pyrolysis}},
url = {{https://lup.lub.lu.se/search/files/51723094/paper1_Li.pdf}},
doi = {{10.1016/j.proci.2016.06.079}},
volume = {{36}},
year = {{2017}},
}