Study on fuel-N conversion during rapid pyrolysis of anthracite in CO2 at high temperature

Qiongliang Zha; Jing Zhao; Chang’an Wang; Yinhe Liu; Defu Che

doi:10.1007/978-981-10-2023-0_61

Study on fuel-N conversion during rapid pyrolysis of anthracite in CO₂ at high temperature

Qiongliang Zha
, Jing Zhao
, Chang’an Wang
, Yinhe Liu
, Defu Che

School of Energy and Power Engineering

Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

Here, a study was conducted on fuel-N conversion during anthracite rapid pyrolysis in CO₂ at high temperature using a drop-tube furnace (DTF). NO and HCN were the main products in CO₂ atmosphere and NO occupied a larger proportion. Due to char-CO₂ gasification, more oxygen-derived groups were introduced onto the char surfaces. High temperature enhanced gasification reaction, leading to a more developed pore structure and a larger specific surface area of char, which greatly increased the reaction sites of (-CN) with oxidizing free radicals. More active nitrogen sites were exposed in CO₂ atmosphere, promoting char-N release. HCN yield in CO₂ atmosphere was lower than that in N₂ atmosphere due to the oxidation of (-CN) by (-O). Gasification reaction promoted the fuel-N release, resulting in HCN maximum yield at a lower temperature. N₂ production increased while char-N yield decreased as temperature was increased from 1173 to 1773 K for anthracite.

Original language	English
Title of host publication	Clean Coal Technology and Sustainable Development
Editors	Guangxi Yue, Shuiqing Li
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	445-451
Number of pages	7
ISBN (Print)	9789811020223
DOIs	https://doi.org/10.1007/978-981-10-2023-0_61
State	Published - 2016
Event	8th International Symposium on Coal Combustion,ISCC 2015 - Beijing , China Duration: 19 Jul 2015 → 22 Jul 2015

Publication series

Name	Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015
Volume	0

Conference

Conference	8th International Symposium on Coal Combustion,ISCC 2015
Country/Territory	China
City	Beijing
Period	19/07/15 → 22/07/15

Keywords

Anthracite
CO
Fuel-N conversion
High temperature

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/978-981-10-2023-0_61

Cite this

Zha, Q., Zhao, J., Wang, C., Liu, Y., & Che, D. (2016). Study on fuel-N conversion during rapid pyrolysis of anthracite in CO₂ at high temperature. In G. Yue, & S. Li (Eds.), Clean Coal Technology and Sustainable Development (pp. 445-451). (Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015; Vol. 0). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-10-2023-0_61

Zha, Qiongliang ; Zhao, Jing ; Wang, Chang’an et al. / Study on fuel-N conversion during rapid pyrolysis of anthracite in CO₂ at high temperature. Clean Coal Technology and Sustainable Development. editor / Guangxi Yue ; Shuiqing Li. Springer Science and Business Media Deutschland GmbH, 2016. pp. 445-451 (Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015).

@inproceedings{9c8e9ed7e1b547d7a8719963841f70e7,

title = "Study on fuel-N conversion during rapid pyrolysis of anthracite in CO2 at high temperature",

abstract = "Here, a study was conducted on fuel-N conversion during anthracite rapid pyrolysis in CO2 at high temperature using a drop-tube furnace (DTF). NO and HCN were the main products in CO2 atmosphere and NO occupied a larger proportion. Due to char-CO2 gasification, more oxygen-derived groups were introduced onto the char surfaces. High temperature enhanced gasification reaction, leading to a more developed pore structure and a larger specific surface area of char, which greatly increased the reaction sites of (-CN) with oxidizing free radicals. More active nitrogen sites were exposed in CO2 atmosphere, promoting char-N release. HCN yield in CO2 atmosphere was lower than that in N2 atmosphere due to the oxidation of (-CN) by (-O). Gasification reaction promoted the fuel-N release, resulting in HCN maximum yield at a lower temperature. N2 production increased while char-N yield decreased as temperature was increased from 1173 to 1773 K for anthracite.",

keywords = "Anthracite, CO, Fuel-N conversion, High temperature",

author = "Qiongliang Zha and Jing Zhao and Chang{\textquoteright}an Wang and Yinhe Liu and Defu Che",

note = "Publisher Copyright: {\textcopyright} Springer Science+Business Media Singapore and Tsinghua University Press 2016.; 8th International Symposium on Coal Combustion,ISCC 2015 ; Conference date: 19-07-2015 Through 22-07-2015",

year = "2016",

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series = "Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015",

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Zha, Q, Zhao, J, Wang, C, Liu, Y & Che, D 2016, Study on fuel-N conversion during rapid pyrolysis of anthracite in CO₂ at high temperature. in G Yue & S Li (eds), Clean Coal Technology and Sustainable Development. Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015, vol. 0, Springer Science and Business Media Deutschland GmbH, pp. 445-451, 8th International Symposium on Coal Combustion,ISCC 2015, Beijing , China, 19/07/15. https://doi.org/10.1007/978-981-10-2023-0_61

Study on fuel-N conversion during rapid pyrolysis of anthracite in CO₂ at high temperature. / Zha, Qiongliang; Zhao, Jing; Wang, Chang’an et al.
Clean Coal Technology and Sustainable Development. ed. / Guangxi Yue; Shuiqing Li. Springer Science and Business Media Deutschland GmbH, 2016. p. 445-451 (Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015; Vol. 0).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Study on fuel-N conversion during rapid pyrolysis of anthracite in CO2 at high temperature

AU - Zha, Qiongliang

AU - Zhao, Jing

AU - Wang, Chang’an

AU - Liu, Yinhe

AU - Che, Defu

N1 - Publisher Copyright: © Springer Science+Business Media Singapore and Tsinghua University Press 2016.

PY - 2016

Y1 - 2016

N2 - Here, a study was conducted on fuel-N conversion during anthracite rapid pyrolysis in CO2 at high temperature using a drop-tube furnace (DTF). NO and HCN were the main products in CO2 atmosphere and NO occupied a larger proportion. Due to char-CO2 gasification, more oxygen-derived groups were introduced onto the char surfaces. High temperature enhanced gasification reaction, leading to a more developed pore structure and a larger specific surface area of char, which greatly increased the reaction sites of (-CN) with oxidizing free radicals. More active nitrogen sites were exposed in CO2 atmosphere, promoting char-N release. HCN yield in CO2 atmosphere was lower than that in N2 atmosphere due to the oxidation of (-CN) by (-O). Gasification reaction promoted the fuel-N release, resulting in HCN maximum yield at a lower temperature. N2 production increased while char-N yield decreased as temperature was increased from 1173 to 1773 K for anthracite.

AB - Here, a study was conducted on fuel-N conversion during anthracite rapid pyrolysis in CO2 at high temperature using a drop-tube furnace (DTF). NO and HCN were the main products in CO2 atmosphere and NO occupied a larger proportion. Due to char-CO2 gasification, more oxygen-derived groups were introduced onto the char surfaces. High temperature enhanced gasification reaction, leading to a more developed pore structure and a larger specific surface area of char, which greatly increased the reaction sites of (-CN) with oxidizing free radicals. More active nitrogen sites were exposed in CO2 atmosphere, promoting char-N release. HCN yield in CO2 atmosphere was lower than that in N2 atmosphere due to the oxidation of (-CN) by (-O). Gasification reaction promoted the fuel-N release, resulting in HCN maximum yield at a lower temperature. N2 production increased while char-N yield decreased as temperature was increased from 1173 to 1773 K for anthracite.

KW - Anthracite

KW - CO

KW - Fuel-N conversion

KW - High temperature

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DO - 10.1007/978-981-10-2023-0_61

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AN - SCOPUS:85048470307

SN - 9789811020223

T3 - Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015

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EP - 451

BT - Clean Coal Technology and Sustainable Development

A2 - Yue, Guangxi

A2 - Li, Shuiqing

PB - Springer Science and Business Media Deutschland GmbH

T2 - 8th International Symposium on Coal Combustion,ISCC 2015

Y2 - 19 July 2015 through 22 July 2015

ER -

Zha Q, Zhao J, Wang C, Liu Y, Che D. Study on fuel-N conversion during rapid pyrolysis of anthracite in CO₂ at high temperature. In Yue G, Li S, editors, Clean Coal Technology and Sustainable Development. Springer Science and Business Media Deutschland GmbH. 2016. p. 445-451. (Clean Coal Technology and Sustainable Development - Proceedings of the 8th International Symposium on Coal Combustion,2015). doi: 10.1007/978-981-10-2023-0_61