Geochemical Characteristics of Coal in the Taiyuan Formation in the Center and North of the Xishan Coalfield

Gang Wang (), Yong Qin and Yiwei Xie
Additional contact information
Gang Wang: College of Architecture & Civil Engineering, Shangqiu Normal University, Shangqiu 476000, China
Yong Qin: Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process of the Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
Yiwei Xie: Geology Section of the Xi Shan Coal Electricity Group, Taiyuan 030053, China

Energies, 2022, vol. 15, issue 21, 1-21

Abstract: The Xishan coalfield is an important coking coal-producing area in China. The No. 8 and No. 9 coals of the Taiyuan formation were sampled and tested from nine mines in the center and north of the Xishan coalfield, and the coal’s quality characteristics, element occurrence characteristics, enrichment characteristics, and sedimentary environment characteristics were analyzed to provide a foundation for clean and efficient coal utilization and identification of associated coal resources. The results obtained from the experiment show that Li in No. 8 coal is the enrichment element. The enrichment coefficient of the U element of ML8 is 13.78, which is close to the industrial index of recycling. The enrichment hazardous elements are Cu, Mo, Cd of ML8, Mo of DQ8, and Th of ZCD8. Along with K value and Sr/Ba ratio, seawater has a greater influence on the south of No. 8 coal than on the north and on the east of No. 9 coal than on the west. No. 8 coal (except ML8) was formed under an oxidation environment based on the U/Th, Ni/Co, and V/Cr ratios. The oxidation or suboxic to the dysoxic environment resulted in the formation of No. 9 coal. Based on the Al 2 O 3 /TiO 2 ratio, the sediments of No. 8 and No. 9 coals are mainly from felsic volcanic rocks.

Keywords: Xishan coalfield; Taiyuan formation; elements; geochemistry; sedimentary environment (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/21/8025/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/21/8025/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:21:p:8025-:d:956418

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().