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Nitrogen in Chinese coals

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Abstract

Three hundred and six coal samples were taken from main coal mines of twenty-six provinces, autonomous regions, and municipalities in China, according to the resource distribution and coal-forming periods as well as the coal ranks and coal yields. Nitrogen was determined by using the Kjeldahl method at U.S. Geological Survey (USGS), which exhibit a normal frequency distribution. The nitrogen contents of over 90% Chinese coal vary from 0.52% to 1.41% and the average nitrogen content is recommended to be 0.98%. Nitrogen in coal exists primarily in organic form. There is a slight positive relationship between nitrogen content and coal ranking.

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Authors and Affiliations

  1. Key Lab. of Poyang Lake Ecology and Bio-resource Utilization, Ministry of Education, College of Environmental Science and Engineering, Nanchang University, Nanchang, 330029, China

    Daishe Wu & Jie Lei

  2. Institute of Geochemistry, CAS, Guiyang, 550002, China

    Baoshan Zheng, Mingshi Wang, Jun Hu, Shehong Li & Binbin Wang

  3. Anhui University of Science and Technology, Huainan, 232001, China

    Xiuyi Tang

  4. U.S. Geological Survey, Mail Stop 956, Reston, VA, 20192, USA

    R. B. Finkelman

Authors
  1. Daishe Wu
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  2. Jie Lei
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  3. Baoshan Zheng
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  4. Xiuyi Tang
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  5. Mingshi Wang
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  6. Jun Hu
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  7. Shehong Li
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  8. Binbin Wang
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  9. R. B. Finkelman
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Correspondence to Daishe Wu.

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Wu, D., Lei, J., Zheng, B. et al. Nitrogen in Chinese coals. Chin. J. Geochem. 30, 248–254 (2011). https://doi.org/10.1007/s11631-011-0506-6

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  • DOI: https://doi.org/10.1007/s11631-011-0506-6

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