IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v73y2014icp844-855.html
   My bibliography  Save this article

Experimental investigation into pulverized-coal combustion performance and NO formation using sub-stoichiometric ratios

Author

Listed:
  • Chen, Zhichao
  • Wang, Zhenwang
  • Li, Zhengqi
  • Xie, Yiquan
  • Ti, Shuguang
  • Zhu, Qunyi

Abstract

The influence of using sub-stoichiometric ratios on pulverized-coal combustion and NO formation and reduction in a pulverized-coal combustion test system with a swirl burner was investigated. Local gas components, gas temperature, the char burnout rate, and carbon and nitrogen release rates were measured at different positions in the test facility. A method for determining the fuel-rich zone boundary within the swirl pulverized-coal flame is proposed, and a new parameter, for scaling the degree of released fuel-N conversion to NO is defined. The maximum NO concentration was at the boundary between the primary-air and secondary-air jets along the cross-sections near the burner, at different stoichiometric ratios. The overall NO emission concentration decreased from 661.89 mg/N m3 (at 6% O2) to 169.99 mg/N m3 (also at 6% O2) when the stoichiometric ratio decreased from 1.0 to 0.7. The conversion of released fuel-N to NO dominated the overall NO emissions at sub-stoichiometric ratios. Decreasing the stoichiometric ratio did not significantly affect the ignition performance of the burner, but the position of the flame center moved downstream and the slagging tendency increased.

Suggested Citation

  • Chen, Zhichao & Wang, Zhenwang & Li, Zhengqi & Xie, Yiquan & Ti, Shuguang & Zhu, Qunyi, 2014. "Experimental investigation into pulverized-coal combustion performance and NO formation using sub-stoichiometric ratios," Energy, Elsevier, vol. 73(C), pages 844-855.
    • Handle: RePEc:eee:energy:v:73:y:2014:i:c:p:844-855
    DOI: 10.1016/j.energy.2014.06.093
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544214007920
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2014.06.093?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. Patzek, Tadeusz W. & Croft, Gregory D., 2010. "A global coal production forecast with multi-Hubbert cycle analysis," Energy, Elsevier, vol. 35(8), pages 3109-3122.
    2. Wang, Junchao & Fan, Weidong & Li, Yu & Xiao, Meng & Wang, Kang & Ren, Peng, 2012. "The effect of air staged combustion on NOx emissions in dried lignite combustion," Energy, Elsevier, vol. 37(1), pages 725-736.
    3. Chen, Zhichao & Li, Zhengqi & Zhu, Qunyi & Yang, Lianjie & Chen, Lizhe, 2011. "Concentrator performance within a centrally fuel-rich primary air burner: Influence of multiple levels," Energy, Elsevier, vol. 36(7), pages 4041-4047.
    4. Liu, Guijian & Zheng, Liugen & Gao, Lianfen & Zhang, Haoyuan & Peng, Zicheng, 2005. "The characterization of coal quality from the Jining coalfield," Energy, Elsevier, vol. 30(10), pages 1903-1914.
    5. Simpson, Adam P. & Edwards, Chris F., 2011. "An exergy-based framework for evaluating environmental impact," Energy, Elsevier, vol. 36(3), pages 1442-1459.
    6. Chen, Zhichao & Li, Zhengqi & Zhu, Qunyi & Jing, Jianping, 2011. "Gas/particle flow and combustion characteristics and NOx emissions of a new swirl coal burner," Energy, Elsevier, vol. 36(2), pages 709-723.
    7. Tabasová, Andrea & Kropáč, Jiří & Kermes, Vít & Nemet, Andreja & Stehlík, Petr, 2012. "Waste-to-energy technologies: Impact on environment," Energy, Elsevier, vol. 44(1), pages 146-155.
    8. Streets, D.G., 2003. "Environmental benefits of electricity grid interconnections in Northeast Asia," Energy, Elsevier, vol. 28(8), pages 789-807.
    9. Jing, Jianping & Li, Zhengqi & Zhu, Qunyi & Chen, Zhichao & Ren, Feng, 2011. "Influence of primary air ratio on flow and combustion characteristics and NOx emissions of a new swirl coal burner," Energy, Elsevier, vol. 36(2), pages 1206-1213.
    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. Kalimuthu, Selvam & Karmakar, Sujit & Kolar, Ajit Kumar, 2017. "3-E analysis of a Pressurized Pulverized Combined Cycle (PPCC) power plant using high ash Indian coal," Energy, Elsevier, vol. 128(C), pages 634-648.
    2. Li, Qingwei & Wu, Jiang & Wei, Hongqi, 2018. "Reduction of elemental mercury in coal-fired boiler flue gas with computational intelligence approach," Energy, Elsevier, vol. 160(C), pages 753-762.
    3. Hashimoto, Nozomu & Watanabe, Hiroaki & Kurose, Ryoichi & Shirai, Hiromi, 2017. "Effect of different fuel NO models on the prediction of NO formation/reduction characteristics in a pulverized coal combustion field," Energy, Elsevier, vol. 118(C), pages 47-59.
    4. Choi, Minsung & Park, Yeseul & Li, Xinzhuo & Kim, Kibeom & Sung, Yonmo & Hwang, Taegam & Choi, Gyungmin, 2021. "Numerical evaluation of pulverized coal swirling flames and NOx emissions in a coal-fired boiler: Effects of co- and counter-swirling flames and coal injection modes," Energy, Elsevier, vol. 217(C).
    5. Chen, Zhichao & Qiao, Yanyu & Guan, Shuo & Wang, Zhenwang & Zheng, Yu & Zeng, Lingyan & Li, Zhengqi, 2022. "Effect of inner and outer secondary air ratios on ignition, C and N conversion process of pulverized coal in swirl burner under sub-stoichiometric ratio," Energy, Elsevier, vol. 239(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. Dios, M. & Souto, J.A. & Casares, J.J., 2013. "Experimental development of CO2, SO2 and NOx emission factors for mixed lignite and subbituminous coal-fired power plant," Energy, Elsevier, vol. 53(C), pages 40-51.
    2. Zeng, Lingyan & Li, Zhengqi & Zhao, Guangbo & Li, Jing & Zhang, Fucheng & Shen, Shanping & Chen, Lizhe, 2011. "The influence of swirl burner structure on the gas/particle flow characteristics," Energy, Elsevier, vol. 36(10), pages 6184-6194.
    3. Chen, Zhichao & Qiao, Yanyu & Guan, Shuo & Wang, Zhenwang & Zheng, Yu & Zeng, Lingyan & Li, Zhengqi, 2022. "Effect of inner and outer secondary air ratios on ignition, C and N conversion process of pulverized coal in swirl burner under sub-stoichiometric ratio," Energy, Elsevier, vol. 239(PD).
    4. Li, Zixiang & Miao, Zhengqing & Shen, Xusheng & Li, Jiangtao, 2018. "Effects of momentum ratio and velocity difference on combustion performance in lignite-fired pulverized boiler," Energy, Elsevier, vol. 165(PA), pages 825-839.
    5. Darbandi, Masoud & Fatin, Ali & Bordbar, Hadi, 2020. "Numerical study on NOx reduction in a large-scale heavy fuel oil-fired boiler using suitable burner adjustments," Energy, Elsevier, vol. 199(C).
    6. Qiao, Yanyu & Li, Song & Jing, Xinjing & Chen, Zhichao & Fan, Subo & Li, Zhengqi, 2022. "Combustion and NOx formation characteristics from a 330 MWe retrofitted anthracite-fired utility boiler with swirl burner under deeply-staged-combustion," Energy, Elsevier, vol. 258(C).
    7. Ti, Shuguang & Chen, Zhichao & Li, Zhengqi & Xie, Yiquan & Shao, Yunlin & Zong, Qiudong & Zhang, Qinghua & Zhang, Hao & Zeng, Lingyan & Zhu, Qunyi, 2014. "Influence of different swirl vane angles of over fire air on flow and combustion characteristics and NOx emissions in a 600 MWe utility boiler," Energy, Elsevier, vol. 74(C), pages 775-787.
    8. Yu, Byeonghun & Lee, Seungro & Lee, Chang-Eon, 2015. "Study of NOx emission characteristics in CH4/air non-premixed flames with exhaust gas recirculation," Energy, Elsevier, vol. 91(C), pages 119-127.
    9. Ling, Zhongqian & Zhou, Hao & Ren, Tao, 2015. "Effect of the flue gas recirculation supply location on the heavy oil combustion and NOx emission characteristics within a pilot furnace fired by a swirl burner," Energy, Elsevier, vol. 91(C), pages 110-116.
    10. Li, Zixiang & Miao, Zhengqing & Zhou, Yan & Wen, Shurong & Li, Jiangtao, 2018. "Influence of increased primary air ratio on boiler performance in a 660 MW brown coal boiler," Energy, Elsevier, vol. 152(C), pages 804-817.
    11. Chen, Zhichao & Li, Zhengqi & Wang, Zhenwang & Liu, Chunlong & Chen, Lizhe & Zhu, Qunyi & Li, Yuan, 2011. "The influence of distance between adjacent rings on the gas/particle flow characteristics of a conical rings concentrator," Energy, Elsevier, vol. 36(5), pages 2557-2564.
    12. Yonmo Sung & Seungtae Kim & Byunghwa Jang & Changyong Oh & Taeyun Jee & Soonil Park & Kwansic Park & Siyoul Chang, 2021. "Nitric Oxide Emission Reduction in Reheating Furnaces through Burner and Furnace Air-Staged Combustions," Energies, MDPI, vol. 14(6), pages 1-15, March.
    13. Fang, Neng & Li, Zhengqi & Wang, Jiaquan & Zhang, Bin & Zeng, Lingyan & Chen, Zhichao & Wang, Haopeng & Liu, Xiaoying & Zhang, Xiaoyan, 2018. "Experimental investigations on air/particle flow characteristics in a 2000 t/d GSP pulverized coal gasifier with an improved burner," Energy, Elsevier, vol. 165(PB), pages 432-441.
    14. Hua, Yun & Nie, Wen & Liu, Qiang & Yin, Shuai & Peng, Huitian, 2020. "Effect of wind curtain on dust extraction in rock tunnel working face: CFD and field measurement analysis," Energy, Elsevier, vol. 197(C).
    15. Otsuki, Takashi & Mohd Isa, Aishah Binti & Samuelson, Ralph D., 2016. "Electric power grid interconnections in Northeast Asia: A quantitative analysis of opportunities and challenges," Energy Policy, Elsevier, vol. 89(C), pages 311-329.
    16. Lukáš Režný & Vladimír Bureš, 2019. "Energy Transition Scenarios and Their Economic Impacts in the Extended Neoclassical Model of Economic Growth," Sustainability, MDPI, vol. 11(13), pages 1-25, July.
    17. Lin, Boqiang & Liu, Jianghua & Yang, Yingchun, 2012. "Impact of carbon intensity and energy security constraints on China's coal import," Energy Policy, Elsevier, vol. 48(C), pages 137-147.
    18. Bosetti, Valentina & Carraro, Carlo & Massetti, Emanuele & Tavoni, Massimo, 2008. "International energy R&D spillovers and the economics of greenhouse gas atmospheric stabilization," Energy Economics, Elsevier, vol. 30(6), pages 2912-2929, November.
    19. Ouyang, Ziqu & Song, Wenhao & Li, Shiyuan & Liu, Jingzhang & Ding, Hongliang, 2020. "Experiment study on NOx emission characteristics of the ultra-low volatile fuel in a 2 MW novel pulverized fuel self-sustained preheating combustor," Energy, Elsevier, vol. 209(C).
    20. Mediavilla, Margarita & de Castro, Carlos & Capellán, Iñigo & Javier Miguel, Luis & Arto, Iñaki & Frechoso, Fernando, 2013. "The transition towards renewable energies: Physical limits and temporal conditions," Energy Policy, Elsevier, vol. 52(C), pages 297-311.

    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:73:y:2014:i:c:p:844-855. 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.