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Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province
Long, Jie1,2; Zhang, Shixi1; Luo, Kunli1,2
2019-09-01
Source PublicationENERGY EXPLORATION & EXPLOITATION
ISSN0144-5987
Volume37Issue:5Pages:1599-1616
Corresponding AuthorLuo, Kunli(kunliluo@sohu.com)
AbstractWith the principal aim of understanding the element variations in Carboniferous coal from eastern Yunnan province of China, the concentration of 48 elements in 16 coal samples were determined. It was found that, (1) Se (0.76-5.13 mg/kg), Mo (0.29-46.71 mg/kg), As (0.96-25.38 mg/kg), Cr (3.89-1152 mg/kg), Li (2.92-109.00 mg/kg), and U (0.09-39.23 mg/kg) in the studied coal samples are 2-43 times more than those of the upper continental crust (UCC). (2) Arithmetic mean of Cr, Sc, Mo, As, Ga, U, V, and Cu are higher than those in China coals average, while Na, P, Al, Ti, Ba, Bi, Tl, and Sr are lower. The average content of Cr in the studied coals is 352 mg/kg, which is 22.49, 20.37, and 23.09 times higher than that of China coals average, World hard coals and USA coals average, respectively. (3) In terms of the correlation between element concentration and ash yield, all the elements were accordingly divided into five groups. In addition, three coal samples (No. KM50, KM64 and LM61) were found to have relatively high Cr concentration as 1055, 1072, and 1152, respectively. Analysis of these three coal samples shows an M-type REE enrichment pattern (UCC normalized), with positive Eu abnormlies of 2.96, 2.52, and 3.96, respectively. This pattern is similar to that in Carboniferous ophiolite and primitive mantle, suggesting that they may have the same source of matter. High Cr coal has a potential harmful impact on the environment and human beings during the coal combustion and utilization. Besides, Se and Mo are 2.12 and 8.65 mg/kg on average, respectively, which are 7.31 and 5.08 times more than those in Chinese soil average, thus Carboniferous coal with low Cr-As but high Se-Mo should be considered as potential fertilizer for local crops.
KeywordChromium resource utilization South China provenance Se-enriched fertilizer
DOI10.1177/0144598719825703
WOS KeywordTRACE-ELEMENTS ; NEOGENE LIGNITE ; GEOCHEMISTRY ; BASIN ; ORIGIN ; FLUOROSIS ; CHINA ; MODES
Indexed BySCI
Language英语
Funding ProjectScience and Technology Major Project of Guangxi[AA17202026-1] ; National Natural Sciences Foundation[41877299] ; National Natural Sciences Foundation[41472322] ; National Basic Research Program of China[2014CB238906]
Funding OrganizationScience and Technology Major Project of Guangxi ; National Natural Sciences Foundation ; National Basic Research Program of China
WOS Research AreaEnergy & Fuels
WOS SubjectEnergy & Fuels
WOS IDWOS:000484433800009
PublisherSAGE PUBLICATIONS INC
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69716
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLuo, Kunli
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, A11 Datun Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Long, Jie,Zhang, Shixi,Luo, Kunli. Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province[J]. ENERGY EXPLORATION & EXPLOITATION,2019,37(5):1599-1616.
APA Long, Jie,Zhang, Shixi,&Luo, Kunli.(2019).Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province.ENERGY EXPLORATION & EXPLOITATION,37(5),1599-1616.
MLA Long, Jie,et al."Element concentration and enrichment patterns in Carboniferous coal from coal-burning endemic area, Yunnan province".ENERGY EXPLORATION & EXPLOITATION 37.5(2019):1599-1616.
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