IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v242y2019icp1528-1538.html
   My bibliography  Save this article

Simultaneous removal of SO2 and NOx by a new combined spray-and-scattered-bubble technology based on preozonation: From lab scale to pilot scale

Author

Listed:
  • Si, Tong
  • Wang, Chunbo
  • Yan, Xuenan
  • Zhang, Yue
  • Ren, Yujie
  • Hu, Jian
  • Anthony, Edward J.

Abstract

A new technology (called here, spray-and-scattered-bubble technology) based on preozonation was designed and tested for simultaneous removal of SO2 and NOx from power plant flue gas. It combines the advantages of the common spray tower and the jet bubble reactor, in which the flue gas experiences an initial SO2/NOx removal in the spray zone and then undergoes further removal in the bubble zone. Factors that affect the simultaneous removal of SO2/NOx were investigated through lab-scale experiments, by varying the O3/NO molar ratio, liquid/gas ratio and the immersion depth. The results showed the removal of SO2 and NOx can be significantly improved as compared to a separate spray column or bubble reactor, by as much as 17%, for the spray column and 18% for the bubble reactor for NOx and 11% for the spray column, and 13% for the bubble reactor for SO2, for liquid/gas ratio of 4 dm3/m3 or immersion depth of 100 mm. The O3/NO molar ratio had little effect on the SO2 removal, but it strongly affected the removal efficiency of NOx especially when it was less than 1.0. Both the liquid/gas ratio and immersion depth demonstrated a positive correlation with the removal efficiency. However, a balance must be maintained between efficiency and economics, since the liquid/gas ratio directly influences the performance and number of the circulating pumps, and the depth is closely related to the flue gas pressure drop, and both factors affect energy requirements. To further confirm its industrial feasibility, a 30 h test using real coal-fired flue gas was conducted in a pilot-scale experimental facility (flue gas volume of 5000 Nm3/h). Increasing SO2 concentration in flue gas can promote the removal efficiency of NOx, but the SO2 removal was almost complete under all conditions tested. Finally, taking a 300 MW unit as an example, the total energy cost of this new technology is estimated as being 10% lower than that of the common spray tower technology, based on an analysis using Aspen Plus™, with the largest difference reflected in the energy requirements of the circulating pumps and the ozonizer. Over all, the new technology offers the collaborative advantages of reducing emissions and saving energy.

Suggested Citation

  • Si, Tong & Wang, Chunbo & Yan, Xuenan & Zhang, Yue & Ren, Yujie & Hu, Jian & Anthony, Edward J., 2019. "Simultaneous removal of SO2 and NOx by a new combined spray-and-scattered-bubble technology based on preozonation: From lab scale to pilot scale," Applied Energy, Elsevier, vol. 242(C), pages 1528-1538.
  • Handle: RePEc:eee:appene:v:242:y:2019:i:c:p:1528-1538
    DOI: 10.1016/j.apenergy.2019.03.186
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261919306038
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.apenergy.2019.03.186?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. Wu, Xiao M. & Qin, Zhen & Yu, Yun S. & Zhang, Zao X., 2018. "Experimental and numerical study on CO2 absorption mass transfer enhancement for a diameter-varying spray tower," Applied Energy, Elsevier, vol. 225(C), pages 367-379.
    2. Zheng, Chenghang & Xu, Changri & Zhang, Yongxin & Zhang, Jun & Gao, Xiang & Luo, Zhongyang & Cen, Kefa, 2014. "Nitrogen oxide absorption and nitrite/nitrate formation in limestone slurry for WFGD system," Applied Energy, Elsevier, vol. 129(C), pages 187-194.
    3. Liang, Zengying & Ma, Xiaoqian & Lin, Hai & Tang, Yuting, 2011. "The energy consumption and environmental impacts of SCR technology in China," Applied Energy, Elsevier, vol. 88(4), pages 1120-1129, April.
    4. Li, Kangkang & Yu, Hai & Qi, Guojie & Feron, Paul & Tade, Moses & Yu, Jingwen & Wang, Shujuan, 2015. "Rate-based modelling of combined SO2 removal and NH3 recycling integrated with an aqueous NH3-based CO2 capture process," Applied Energy, Elsevier, vol. 148(C), pages 66-77.
    5. Gao, Xiang & Ding, Honglei & Du, Zhen & Wu, Zuliang & Fang, Mengxiang & Luo, Zhongyang & Cen, Kefa, 2010. "Gas-liquid absorption reaction between (NH4)2SO3 solution and SO2 for ammonia-based wet flue gas desulfurization," Applied Energy, Elsevier, vol. 87(8), pages 2647-2651, August.
    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. Si, Tong & Wang, Chunbo & Liu, Ruiqi & Guo, Yusheng & Yue, Shuang & Ren, Yujie, 2020. "Multi-criteria comprehensive energy efficiency assessment based on fuzzy-AHP method: A case study of post-treatment technologies for coal-fired units," Energy, Elsevier, vol. 200(C).

    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. Chen, Long & Xu, Guiyin & Rui, Zhenhua & Alshawabkeh, Akram N., 2019. "Demonstration of a feasible energy-water-environment nexus: Waste sulfur dioxide for water treatment," Applied Energy, Elsevier, vol. 250(C), pages 1011-1022.
    2. Jiang, Kaiqi & Yu, Hai & Chen, Linghong & Fang, Mengxiang & Azzi, Merched & Cottrell, Aaron & Li, Kangkang, 2020. "An advanced, ammonia-based combined NOx/SOx/CO2 emission control process towards a low-cost, clean coal technology," Applied Energy, Elsevier, vol. 260(C).
    3. Ling Li & Buting Zhang & Ping Zhu & Liangying Yu & Guangjin Zhao & Min Li & Hecen Wang, 2022. "Structure Optimization Research Based on Numerical Simulation of Flow Field in Ammonia-Based Wet Sintering Flue Gas Desulfurization," Energies, MDPI, vol. 15(20), pages 1-13, October.
    4. Chu, Fengming & Yang, Lijun & Du, Xiaoze & Yang, Yongping, 2017. "Mass transfer and energy consumption for CO2 absorption by ammonia solution in bubble column," Applied Energy, Elsevier, vol. 190(C), pages 1068-1080.
    5. Tan, Peng & Xia, Ji & Zhang, Cheng & Fang, Qingyan & Chen, Gang, 2016. "Modeling and reduction of NOX emissions for a 700 MW coal-fired boiler with the advanced machine learning method," Energy, Elsevier, vol. 94(C), pages 672-679.
    6. Jiao, Jian-Ling & Han, Kuang-Yi & Wu, Gang & Li, Lan-Lan & Wei, Yi-Ming, 2014. "The effect of an SPR on the oil price in China: A system dynamics approach," Applied Energy, Elsevier, vol. 133(C), pages 363-373.
    7. Mianqiang Xue & Bin-Le Lin & Kiyotaka Tsunemi & Kimitaka Minami & Tetsuya Nanba & Tohru Kawamoto, 2021. "Life Cycle Assessment of Nitrogen Circular Economy-Based NO x Treatment Technology," Sustainability, MDPI, vol. 13(14), pages 1-15, July.
    8. Tang, YuTing & Ma, XiaoQian & Lai, ZhiYi & Chen, Yong, 2013. "Energy analysis and environmental impacts of a MSW oxy-fuel incineration power plant in China," Energy Policy, Elsevier, vol. 60(C), pages 132-141.
    9. Wu, Xiaomei & Fan, Huifeng & Mao, Yuanhao & Sharif, Maimoona & Yu, Yunsong & Zhang, Zaoxiao & Liu, Guangxin, 2022. "Systematic study of an energy efficient MEA-based electrochemical CO2 capture process: From mechanism to practical application," Applied Energy, Elsevier, vol. 327(C).
    10. Wang, Chang'an & Zhao, Lin & Sun, Ruijin & Zhou, Lei & Jin, Liyan & Che, Defu, 2022. "Experimental study on NO emission and ash deposition during oxy-fuel combustion of high-alkali coal under oxygen-staged conditions," Energy, Elsevier, vol. 251(C).
    11. Wen, Tao & Lu, Lin & He, Weifeng & Min, Yunran, 2020. "Fundamentals and applications of CFD technology on analyzing falling film heat and mass exchangers: A comprehensive review," Applied Energy, Elsevier, vol. 261(C).
    12. Ji, Long & Yu, Hai & Li, Kangkang & Yu, Bing & Grigore, Mihaela & Yang, Qi & Wang, Xiaolong & Chen, Zuliang & Zeng, Ming & Zhao, Shuaifei, 2018. "Integrated absorption-mineralisation for low-energy CO2 capture and sequestration," Applied Energy, Elsevier, vol. 225(C), pages 356-366.
    13. 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).
    14. Yifang Liu & Fengming Chu & Lijun Yang & Xiaoze Du & Yongping Yang, 2018. "CO2 absorption characteristics in a random packed column with various geometric structures and working conditions," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 8(1), pages 120-132, February.
    15. Hai Yu & Nan Yang & Marcel Maeder & Paul Feron, 2018. "Kinetics of the reversible reaction of CO2(aq) with taurate in aqueous solution," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 8(4), pages 672-685, August.
    16. Ma, Teng & Takeuchi, Kenji, 2017. "Technology choice for reducing NOx emissions: An empirical study of Chinese power plants," Energy Policy, Elsevier, vol. 102(C), pages 362-376.
    17. Yu, Hesheng & Zhu, Qunyi & Tan, Zhongchao, 2012. "Absorption of nitric oxide from simulated flue gas using different absorbents at room temperature and atmospheric pressure," Applied Energy, Elsevier, vol. 93(C), pages 53-58.
    18. Wei, Li & Yan, Fuwu & Hu, Jie & Xi, Guangwei & Liu, Bo & Zeng, Jiawei, 2017. "Nox conversion efficiency optimization based on NSGA-II and state-feedback nonlinear model predictive control of selective catalytic reduction system in diesel engine," Applied Energy, Elsevier, vol. 206(C), pages 959-971.
    19. Jiang, Jibing & Li, Dinggen, 2016. "Theoretical analysis and experimental confirmation of exhaust temperature control for diesel vehicle NOx emissions reduction," Applied Energy, Elsevier, vol. 174(C), pages 232-244.
    20. Liang, Xingyu & Zhao, Bowen & Zhang, Fei & Liu, Qingling, 2019. "Compact research for maritime selective catalytic reduction reactor based on response surface methodology," Applied Energy, Elsevier, vol. 254(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:appene:v:242:y:2019:i:c:p:1528-1538. 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.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    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.