Numerical study on K/S/Cl release during devolatilization of pulverized biomass at high temperature
(2021) In Proceedings of the Combustion Institute 38(3). p.3909-3917- Abstract
In this paper, the interaction between different organic and inorganic K/S/Cl compounds in the solid structure of biomass is studied and a model is presented to predict the temporal release of Kg, HCl, CH 3 Cl, KCl, KOH, K2 SO4 and SO2 from biomass devolatilization. Four types of pulverized biomass are chosen from literature, two of which have no chlorine content and two with chlorine content in lower stoichiometry to potassium. The results of the model are compared with the experimental measurements. In the presence of chlorine, KCl, HCl and K g were found to be the dominant chlorine and potassium species. In the absence of chlorine, K g dominates the release... (More)
In this paper, the interaction between different organic and inorganic K/S/Cl compounds in the solid structure of biomass is studied and a model is presented to predict the temporal release of Kg, HCl, CH 3 Cl, KCl, KOH, K2 SO4 and SO2 from biomass devolatilization. Four types of pulverized biomass are chosen from literature, two of which have no chlorine content and two with chlorine content in lower stoichiometry to potassium. The results of the model are compared with the experimental measurements. In the presence of chlorine, KCl, HCl and K g were found to be the dominant chlorine and potassium species. In the absence of chlorine, K g dominates the release of potassium. KOH and K 2 SO 4 release into the gas phase towards the end of devolatilization due to the overlapping with char combustion. SO 2 is the main sulfur species released into the gas phase. The model is coupled with a CFD solver where the gas phase chemistry of the K/S/Cl system can be studied using available chemical mechanisms for these species.
(Less)
- author
- Fatehi, Hesameddin LU ; Costa, Mário and Bai, Xue Song LU
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Combustion, Numerical simulation, Potassium-Chlorine-Sulfur, Pulverized biomass, Soot
- in
- Proceedings of the Combustion Institute
- volume
- 38
- issue
- 3
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85089510331
- ISSN
- 1540-7489
- DOI
- 10.1016/j.proci.2020.06.079
- language
- English
- LU publication?
- yes
- id
- e2a14755-8081-4f0b-bd6b-bcc85da7d5e3
- date added to LUP
- 2020-08-28 11:18:00
- date last changed
- 2022-04-19 00:23:41
@article{e2a14755-8081-4f0b-bd6b-bcc85da7d5e3, abstract = {{<p>In this paper, the interaction between different organic and inorganic K/S/Cl compounds in the solid structure of biomass is studied and a model is presented to predict the temporal release of K<sub>g</sub>, HCl, CH <sub>3</sub> Cl, KCl, KOH, K<sub>2</sub> SO<sub>4</sub> and SO<sub>2</sub> from biomass devolatilization. Four types of pulverized biomass are chosen from literature, two of which have no chlorine content and two with chlorine content in lower stoichiometry to potassium. The results of the model are compared with the experimental measurements. In the presence of chlorine, KCl, HCl and K <sub>g</sub> were found to be the dominant chlorine and potassium species. In the absence of chlorine, K <sub>g</sub> dominates the release of potassium. KOH and K <sub>2</sub> SO <sub>4</sub> release into the gas phase towards the end of devolatilization due to the overlapping with char combustion. SO <sub>2</sub> is the main sulfur species released into the gas phase. The model is coupled with a CFD solver where the gas phase chemistry of the K/S/Cl system can be studied using available chemical mechanisms for these species.</p>}}, author = {{Fatehi, Hesameddin and Costa, Mário and Bai, Xue Song}}, issn = {{1540-7489}}, keywords = {{Combustion; Numerical simulation; Potassium-Chlorine-Sulfur; Pulverized biomass; Soot}}, language = {{eng}}, number = {{3}}, pages = {{3909--3917}}, publisher = {{Elsevier}}, series = {{Proceedings of the Combustion Institute}}, title = {{Numerical study on K/S/Cl release during devolatilization of pulverized biomass at high temperature}}, url = {{http://dx.doi.org/10.1016/j.proci.2020.06.079}}, doi = {{10.1016/j.proci.2020.06.079}}, volume = {{38}}, year = {{2021}}, }