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  Kinetic Study on Continuous Sampling of Coal Char from a Micro Fluidized Bed

Li, Z., Zou, R., Xu, Y., Cao, L., Luo, G., & Yao, H. (2021). Kinetic Study on Continuous Sampling of Coal Char from a Micro Fluidized Bed. ACS Omega, 6(13), 9086-9094. doi:10.1021/acsomega.1c00131.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0008-9A2A-C Versions-Permalink: https://hdl.handle.net/21.11116/0000-0008-9A30-4
Genre: Zeitschriftenartikel

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acsomega.1c00131.pdf (Verlagsversion), 4MB
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https://hdl.handle.net/21.11116/0000-0008-9A2C-A
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acsomega.1c00131.pdf
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Copyright Datum:
2021
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https://creativecommons.org/licenses/by-nc-nd/4.0/

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 Urheber:
Li, Zehua1, 2, Autor           
Zou, Renjie1, Autor
Xu, Yang3, Autor
Cao, Liang1, Autor
Luo, Guangqian1, Autor
Yao, Hong1, Autor
Affiliations:
1State Key Laboratory of Coal Combustion, Schoolof Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China, ou_persistent22              
2Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
3Environment Research Institute, Shandong University, Qingdao 266237, China, ou_persistent22              

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 Zusammenfassung: We self-design a micro fluidized bed reactor (MFB) with combination of an online char particle sampling system to study the kinetics of coal char combustion and gasification. The system mainly contains two parts: a micro fluidized bed and vacuum online sampling. Vientiane coal was continuously sampled from the MFB. Both combustion and gasification reactivities of the sampled chars were tested in a thermogravimetric analyzer. Kinetic parameters of the sampled char were analyzed. Char reactivity in oxy-fuel combustion in the MFB obeys the rule of decrease–increase–decrease behavior with the sampling time. Pre-exponential factor A and activation energy E of the sampled char increase with the sampling time. The gasification reactivity of the sampled char increases with the sampling time even though there is a minor decrease in an initial gasification stage. The new designed MFB combining with the online sampling system will pave the path for the investigation of gas–solid reaction evolution in the future.

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Sprache(n): eng - English
 Datum: 2021-01-082021-03-162021-04-06
 Publikationsstatus: Online veröffentlicht
 Seiten: 9
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1021/acsomega.1c00131
 Art des Abschluß: -

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Titel: ACS Omega
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Washington, DC : American Chemical Society
Seiten: 9 Band / Heft: 6 (13) Artikelnummer: - Start- / Endseite: 9086 - 9094 Identifikator: ISSN: 2470-1343
CoNE: https://pure.mpg.de/cone/journals/resource/2470-1343