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Potential and Constraints of Biogenic Methane Generation from Coals and Mudstones from Huaibei Coalfield, Eastern China
Energy & Fuels ( IF 5.3 ) Pub Date : 2018-12-04 00:00:00 , DOI: 10.1021/acs.energyfuels.8b02782 Yuan Bao 1, 2 , Yiwen Ju 2 , Haiping Huang 3 , Juanli Yun 4 , Chen Guo 1
Energy & Fuels ( IF 5.3 ) Pub Date : 2018-12-04 00:00:00 , DOI: 10.1021/acs.energyfuels.8b02782 Yuan Bao 1, 2 , Yiwen Ju 2 , Haiping Huang 3 , Juanli Yun 4 , Chen Guo 1
Affiliation
Coalbed methane (CBM) resources formed biogenically and thermogenically have been discovered in the Permian coalbeds of the Huaibei coalfield. Four coals, three mudstones, and five coalbed-produced water samples collected from the Linhuan, Luling, and Haizi coal mines of the Huaibei coalfield were characterized geochemically and biologically to gain an understanding of the biogenic methane generation potential and the microbial communities involved in situ and in coalbed-produced water-enriched samples. The 16S rRNA gene high-throughput sequencing results showed that the archaeal communities from in situ and enriched cultures were dominated by Methanolobus and Methanobacterium species. The organic material of coals and mudstones could be biodegraded under an anaerobic incubation. The maximum biogenic methane generation potentials of coal and mudstones were 98.5 and 72.5 μmol/g within 123 days, respectively. Volatile matter and total organic carbon (TOC) content were the most important internal factors affecting biogenic methane generation from coals and mudstones. The Na-SO4 water type resulted in a low methane generation potential.
更新日期：2018-12-04
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