IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v211y2020ics0360544220317552.html
   My bibliography  Save this article

Relationship between the N2O decomposition and NO formation in H2O/CO2/NH3/NO atmosphere under the conditions of simulated air-staged combustion in the temperature interval of 900–1600 °C

Author

Listed:
  • Liu, Songlin
  • Fan, Weidong
  • Guo, Hao
  • Wu, Xiaofeng
  • Chen, Jun
  • Liu, Zhuang
  • Wang, Xin

Abstract

A fixed bed reactor is adopted to study the N2O decomposition and NO formation in simulated atmosphere to reveal the conversion mechanisms of N2O to NO in the air-staged combustion. It is found that NO is produced during the decomposition process of N2O, which can be explained by the resonance theory. The N2O decomposition can be significantly promoted while the NO generation is hindered by the water vapor, due to the H and OH-radicals produced by H2O decomposition. The O-radicals generated in the CO/O2 atmosphere are critical for the conversion of N2O to NO. CO2 can boost N2O decomposition, and significantly inhibits NO formation. The O-radicals generated by CO/O2 can be conducive to convert N2O to NO, and promote the conversion of NH3 to NO. HNO produced by the reaction of N2O with water is the main source of NO. N2O and O-radicals can exert a consumption effect on NO. The NO formation can be induced by the O-radicals produced in CO/O2 atmosphere and the H-radicals produced by H2O decomposition. The existence of OH-radical is the main contributor to the reduced production of NO. The results can be helpful to provide theoretical support for achieving low NOx emissions.

Suggested Citation

  • Liu, Songlin & Fan, Weidong & Guo, Hao & Wu, Xiaofeng & Chen, Jun & Liu, Zhuang & Wang, Xin, 2020. "Relationship between the N2O decomposition and NO formation in H2O/CO2/NH3/NO atmosphere under the conditions of simulated air-staged combustion in the temperature interval of 900–1600 °C," Energy, Elsevier, vol. 211(C).
    • Handle: RePEc:eee:energy:v:211:y:2020:i:c:s0360544220317552
    DOI: 10.1016/j.energy.2020.118647
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544220317552
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2020.118647?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Fan, Weidong & Li, Yu & Guo, Qinghong & Chen, Can & Wang, Yong, 2017. "Coal-nitrogen release and NOx evolution in the oxidant-staged combustion of coal," Energy, Elsevier, vol. 125(C), pages 417-426.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Liu, Songlin & Fan, Weidong & Wang, Xin & Chen, Jun & Guo, Hao, 2022. "Improvement of kinetic parameters and modeling of the N2O chemical reaction in combustion," Energy, Elsevier, vol. 247(C).
    2. Shi, Guodong & Li, Pengfei & Li, Kesheng & Hu, Fan & Liu, Qian & Zhou, Haoyu & Liu, Zhaohui, 2023. "Insight into NOx formation characteristics of ammonia oxidation in N2 and H2O atmospheres," Energy, Elsevier, vol. 285(C).
    3. Seong-Jun Yang & Ji-Young Eom & Myung-Jin Lee & Dae-Hwan Hwang & Won-Bin Park & Young-Min Wie & Ki-Gang Lee & Kang-Hoon Lee, 2023. "Comparative Environmental Evaluation of Sewage Sludge Treatment and Aggregate Production Process by Life Cycle Assessment," Sustainability, MDPI, vol. 16(1), pages 1-19, December.
    4. Żukowski, Witold & Jankowski, Dawid & Wrona, Jan & Berkowicz-Płatek, Gabriela, 2023. "Combustion behavior and pollutant emission characteristics of polymers and biomass in a bubbling fluidized bed reactor," Energy, Elsevier, vol. 263(PD).

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Zhao, Jingyu & Deng, Jun & Wang, Tao & Song, Jiajia & Zhang, Yanni & Shu, Chi-Min & Zeng, Qiang, 2019. "Assessing the effectiveness of a high-temperature-programmed experimental system for simulating the spontaneous combustion properties of bituminous coal through thermokinetic analysis of four oxidatio," Energy, Elsevier, vol. 169(C), pages 587-596.
    2. Engin, Berrin & Kayahan, Ufuk & Atakül, Hüsnü, 2020. "A comparative study on the air, the oxygen-enriched air and the oxy-fuel combustion of lignites in CFB," Energy, Elsevier, vol. 196(C).
    3. Yuan, Zhenhua & Chen, Zhichao & Bian, Liguo & Li, Zhengqi, 2023. "Influence of over-fired air location on gas-particle flow characteristics within a coal-fired industrial boiler under radial air staging," Energy, Elsevier, vol. 283(C).
    4. Kim, Seong-Ju & Park, Sung-Jin & Jo, Sung-Ho & Lee, Hookyung & Yoon, Sang-Jun & Moon, Ji-Hong & Ra, Ho-Won & Yoon, Sung-Min & Lee, Jae-Goo & Mun, Tae-Young, 2023. "Effects of ammonia co-firing ratios and injection positions in the coal–ammonia co-firing process in a circulating fluidized bed combustion test rig," Energy, Elsevier, vol. 282(C).
    5. Zhu, Shujun & Hui, Jicheng & Lyu, Qinggang & Ouyang, Ziqu & Zeng, Xiongwei & Zhu, Jianguo & Liu, Jingzhang & Cao, Xiaoyang & Zhang, Xiaoyu & Ding, Hongliang & Liu, Yuhua, 2023. "Experimental study on pulverized coal swirl-opposed combustion preheated by a circulating fluidized bed. Part A. Wide-load operation and low-NOx emission characteristics," Energy, Elsevier, vol. 284(C).
    6. Wang, Pengqian & Wang, Chang'an & Yuan, Maobo & Wang, Chaowei & Zhang, Jinping & Du, Yongbo & Tao, Zichen & Che, Defu, 2020. "Experimental evaluation on co-combustion characteristics of semi-coke and coal under enhanced high-temperature and strong-reducing atmosphere," Applied Energy, Elsevier, vol. 260(C).
    7. Fan, Weidong & Wu, Xiaofeng & Guo, Hao & Zhu, Jiangtao & Liu, Peng & Chen, Can & Wang, Yong, 2019. "Experimental study on the impact of adding NH3 on NO production in coal combustion and the effects of char, coal ash, and additives on NH3 reducing NO under high temperature," Energy, Elsevier, vol. 173(C), pages 109-120.
    8. Miao, Miao & Deng, Boyu & Kong, Hao & Yang, Hairui & Lyu, Junfu & Jiang, Xiaoguo & Zhang, Man, 2021. "Effects of volatile matter and oxygen concentration on combustion characteristics of coal in an oxygen-enriched fluidized bed," Energy, Elsevier, vol. 220(C).
    9. Yafei Zhang & Rui Luo & Yihua Dou & Qulan Zhou, 2018. "Combustion Characteristics and NO x Emission through a Swirling Burner with Adjustable Flaring Angle," Energies, MDPI, vol. 11(8), pages 1-14, August.
    10. Liu, Songlin & Fan, Weidong & Wang, Xin & Chen, Jun & Guo, Hao, 2022. "Improvement of kinetic parameters and modeling of the N2O chemical reaction in combustion," Energy, Elsevier, vol. 247(C).
    11. Li, Zixiang & Miao, Zhengqing, 2019. "Primary air ratio affects coal utilization mode and NOx emission in lignite pulverized boiler," Energy, Elsevier, vol. 187(C).
    12. Zhang, Hai & Luo, Lei & Liu, Jiaxun & Jiao, Anyao & Liu, Jianguo & Jiang, Xiumin, 2019. "Theoretical study on the reduction reactions from solid char(N): The effect of the nearby group and the high-spin state," Energy, Elsevier, vol. 189(C).
    13. Li, Yukai & Sun, Shaozeng & Feng, Dongdong & Zhang, Wenda & Zhao, Yijun & Qin, Yukun, 2023. "Syngas tempered pulverized coal reburning: Effect of different reaction gas components," Energy, Elsevier, vol. 271(C).
    14. Gu, Mingyan & Wang, Mingming & Chen, Xue & Wang, Jimin & Lin, Yuyu & Chu, Huaqiang, 2019. "Numerical study on the effect of separated over-fire air ratio on combustion characteristics and NOx emission in a 1000 MW supercritical CO2 boiler," Energy, Elsevier, vol. 175(C), pages 593-603.
    15. Yuan, Zhenhua & Chen, Zhichao & Wu, Xiaolan & Zhang, Ning & Bian, Liguo & Qiao, Yanyu & Li, Jiawei & Li, Zhengqi, 2022. "An innovative low-NOx combustion technology for industrial pulverized coal boiler: Gas-particle flow characteristics with different radial-air-staged levels," Energy, Elsevier, vol. 260(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:211:y:2020:i:c:s0360544220317552. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.