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Development of a novel 2-stage entrained flow coal dry powder gasifier

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  • Xu, Shisen
  • Ren, Yongqiang
  • Wang, Baomin
  • Xu, Yue
  • Chen, Liang
  • Wang, Xiaolong
  • Xiao, Tiancun

Abstract

Coal-fired gasifiers are the key technology for clean power generation and coal chemical process. This paper presents a 2-stage entrained flow dry powder gasifier in which coal is entrained into the lower chamber burner with oxygen and steam to raise the temperature of the crude gas up to 1700°C. The lower chamber is linked to the upper gasification chamber through a middle throat, where additional coal and steam is fed to cool down the slag to less than 900°C for deslagging from the lower chamber bottom.

Suggested Citation

  • Xu, Shisen & Ren, Yongqiang & Wang, Baomin & Xu, Yue & Chen, Liang & Wang, Xiaolong & Xiao, Tiancun, 2014. "Development of a novel 2-stage entrained flow coal dry powder gasifier," Applied Energy, Elsevier, vol. 113(C), pages 318-323.
    • Handle: RePEc:eee:appene:v:113:y:2014:i:c:p:318-323
    DOI: 10.1016/j.apenergy.2013.07.045
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    9. Chen, Xiaodong & Kong, Lingxue & Bai, Jin & Dai, Xin & Li, Huaizhu & Bai, Zongqing & Li, Wen, 2017. "The key for sodium-rich coal utilization in entrained flow gasifier: The role of sodium on slag viscosity-temperature behavior at high temperatures," Applied Energy, Elsevier, vol. 206(C), pages 1241-1249.
    10. Zhou, Jianzhao & Chu, Yin Ting & Ren, Jingzheng & Shen, Weifeng & He, Chang, 2023. "Integrating machine learning and mathematical programming for efficient optimization of operating conditions in organic Rankine cycle (ORC) based combined systems," Energy, Elsevier, vol. 281(C).
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    12. Luo, Yimo & Shao, Shuangquan & Xu, Hongbo & Tian, Changqing & Yang, Hongxing, 2014. "Experimental and theoretical research of a fin-tube type internally-cooled liquid desiccant dehumidifier," Applied Energy, Elsevier, vol. 133(C), pages 127-134.
    13. Li, Zhengkuan & Tian, Songfeng & Zhang, Du & Chang, Chengzhi & Zhang, Qian & Zhang, Peijie, 2022. "Optimization study on improving energy efficiency of power cycle system of staged coal gasification coupled with supercritical carbon dioxide," Energy, Elsevier, vol. 239(PC).
    14. Guangyu Li & Luping Wang & Chaowei Wang & Chang’an Wang & Ping Wu & Defu Che, 2020. "Experimental Study on Coal Gasification in a Full-Scale Two-Stage Entrained-Flow Gasifier," Energies, MDPI, vol. 13(18), pages 1-15, September.
    15. Wang, Dandan & Li, Sheng & He, Song & Gao, Lin, 2019. "Coal to substitute natural gas based on combined coal-steam gasification and one-step methanation," Applied Energy, Elsevier, vol. 240(C), pages 851-859.
    16. 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).
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