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Effects of total pressure and CO2 partial pressure on the physicochemical properties and reactivity of pressurized coal char produced at rapid heating rate

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  • Zhang, Wenda
  • Sun, Shaozeng
  • Zhao, Yijun
  • Zhao, Zujie
  • Wang, Pengxiang
  • Feng, Dongdong
  • Li, Pengfei

Abstract

The effects of the total pressure (0.1–1.3 MPa) and the CO2 partial pressure (0–0.45 MPa) on the physical structural properties, chemical structural properties and reactivity of Shenhua coal pressurized char at 1273 K were investigated in a pressurized drop tube furnace (PDTF). There were reverse-direction effects on char yield between total pressure and CO2 partial pressure for char preparation. Porosity characteristics were performed using an ASAP2020 instrument. It was found that same-direction increment effects on BET surface and porosity between total pressure and CO2 partial pressure for char preparation. Carbon structure and surface structure were performed by Raman and XPS methods. The results showed that both total pressure and CO2 partial pressure can promote the transformation of small aromatic structures to large aromatic structures and increase the graphitization degree of the char. With increasing total pressure and CO2 partial pressure, the unstable N-5 content decreased, while the N-6 and N-Q content increased.

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  • Zhang, Wenda & Sun, Shaozeng & Zhao, Yijun & Zhao, Zujie & Wang, Pengxiang & Feng, Dongdong & Li, Pengfei, 2020. "Effects of total pressure and CO2 partial pressure on the physicochemical properties and reactivity of pressurized coal char produced at rapid heating rate," Energy, Elsevier, vol. 208(C).
    • Handle: RePEc:eee:energy:v:208:y:2020:i:c:s0360544220314043
    DOI: 10.1016/j.energy.2020.118297
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    1. Bai, Yonghui & Wang, Yulong & Zhu, Shenghua & Li, Fan & Xie, Kechang, 2014. "Structural features and gasification reactivity of coal chars formed in Ar and CO2 atmospheres at elevated pressures," Energy, Elsevier, vol. 74(C), pages 464-470.
    2. Pang, Lei & Shao, Yingjuan & Zhong, Wenqi & Liu, Hao, 2018. "Experimental investigation on the coal combustion in a pressurized fluidized bed," Energy, Elsevier, vol. 165(PB), pages 1119-1128.
    3. Chen, Shiyi & Yu, Ran & Soomro, Ahsanullah & Xiang, Wenguo, 2019. "Thermodynamic assessment and optimization of a pressurized fluidized bed oxy-fuel combustion power plant with CO2 capture," Energy, Elsevier, vol. 175(C), pages 445-455.
    4. Gil, M.V. & Riaza, J. & Álvarez, L. & Pevida, C. & Pis, J.J. & Rubiera, F., 2012. "Oxy-fuel combustion kinetics and morphology of coal chars obtained in N2 and CO2 atmospheres in an entrained flow reactor," Applied Energy, Elsevier, vol. 91(1), pages 67-74.
    5. Lasek, Janusz A. & Janusz, Marcin & Zuwała, Jarosław & Głód, Krzysztof & Iluk, Andrzej, 2013. "Oxy-fuel combustion of selected solid fuels under atmospheric and elevated pressures," Energy, Elsevier, vol. 62(C), pages 105-112.
    6. Sonibare, Oluwadayo O. & Haeger, Tobias & Foley, Stephen F., 2010. "Structural characterization of Nigerian coals by X-ray diffraction, Raman and FTIR spectroscopy," Energy, Elsevier, vol. 35(12), pages 5347-5353.
    7. Wang, Zhuozhi & Sun, Rui & Zhao, Yaying & Li, Yupeng & Ren, Xiaohan, 2019. "Effect of steam concentration on demineralized coal char surface behaviors and structural characteristics during the oxy-steam combustion process," Energy, Elsevier, vol. 174(C), pages 339-349.
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    Cited by:

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    2. Huang, Xiaohong & Hu, Fan & Liu, Xuhui & Liu, Zhaohui, 2022. "Structure and reactivity of chars prepared from low-volatile coal under O2/N2 and O2/CO2 conditions in a flat-flame assisted entrained flow reactor," Energy, Elsevier, vol. 261(PB).
    3. Deng, Lihua & Zhang, Wenda & Sun, Shaozeng & Bai, Chenxi & Zhao, Yijun & Feng, Dongdong & Zhang, Linyao & Wu, Jiangquan, 2022. "Effect of pressure on the structure and reactivity of demineralized coal during O2/H2O thermal conversion process," Energy, Elsevier, vol. 244(PA).

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