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Open Access. Powered by Scholars. Published by Universities.®

2021

Tar-rich coal

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Full-Text Articles in Oil, Gas, and Energy

Occurrence Characteristics And Resource Potential Evaluation Of Tar-Rich Coal For No.5-2Coal Seam In Shenfu Mining Area, Li Huabing, Yao Zheng, Li Ning, Gao Jun, Xie Qing, Wang Qiang Jun 2021

Occurrence Characteristics And Resource Potential Evaluation Of Tar-Rich Coal For No.5-2Coal Seam In Shenfu Mining Area, Li Huabing, Yao Zheng, Li Ning, Gao Jun, Xie Qing, Wang Qiang

Coal Geology & Exploration

With the promotion of clean and efficient utilization of coal and the demand for high-quality development in the middle section of the Yellow River, the transformation and upgrading of coal industry is imperative in Yulin, and the exploitation of tar-rich coal one of the important directions. By organizing and making use of mass drill data, and in combination with the minefield underground spot sampling and regional geology, tar-yield characteristics and tar-rich coal occurrence features of tar-rich coal in No.5-2 coal seam in Shenfu Mining Area are analyzed in detail. Based on analytic hierarchy process, this paper takes resource allocation, …


Organic Geochemistry Of The Jurassic Tar-Rich Coal In Northern Shaanxi Province, Zhang Ning, Xu Yun, Qiao Junwei, Ning Shuzheng Jun 2021

Organic Geochemistry Of The Jurassic Tar-Rich Coal In Northern Shaanxi Province, Zhang Ning, Xu Yun, Qiao Junwei, Ning Shuzheng

Coal Geology & Exploration

The organic geochemical characteristics of tar-rich coal are of great significance to study the paleosedimentary environment and evolution of coal seams. Taking coal samples from 6 main coal seams of Yan’an Formation in Northern Shaanxi Province as the research object, this paper analyses the organic geochemical characteristics of coal seams by coal quality analysis and gas chromatography-mass spectrometry. The results showed that coal samples had a high abundance of chloroform asphalt "A" and a low saturated hydrocarbon/aromatic hydrocarbon ratios, characterized by the unimodal pattern of n-alkanes and dominated by medium chainsaturated hydrocarbons. The ratios of Pr/C17, Ph/C18 …


Experimental Study On Multi-Scale Pore Structure Characteristics Of Tar-Rich Coal In Yushenfu Mining Area, Shen Yanjun, Wang Xu, Zhao Chunhu, Wang Shengquan, Guo Chen, Shi Qingmin, Ma Wen Jun 2021

Experimental Study On Multi-Scale Pore Structure Characteristics Of Tar-Rich Coal In Yushenfu Mining Area, Shen Yanjun, Wang Xu, Zhao Chunhu, Wang Shengquan, Guo Chen, Shi Qingmin, Ma Wen

Coal Geology & Exploration

Extracting oil and refining gas from oil-rich coal is an important measure to make up for the shortage of oil and gas supply in China. The research on pore development characteristics and permeability of tar-rich coal will help to better develop and utilize tar-rich coal. Taking the tar-rich coal in Yushenfu mining area as the research object, this paper studies the multi-scale pore structure and the whole segment pore characterization of tar-rich coal by such methods as low-temperature liquid nitrogen adsorption, mercury intrusion porosimetry, nuclear magnetic resonance and gas permeability measurement method. Based on the test results of multi-scale pore …


Occurrence Characteristics Of Carboniferous-Permian Tar-Rich Coal And Its Influencing Factors In Northern Shaanxi, Yao Zheng, Luo Qianzhou, Li Ning, Li Huabing, Wang Qiang, Gao Jun Jun 2021

Occurrence Characteristics Of Carboniferous-Permian Tar-Rich Coal And Its Influencing Factors In Northern Shaanxi, Yao Zheng, Luo Qianzhou, Li Ning, Li Huabing, Wang Qiang, Gao Jun

Coal Geology & Exploration

The rational development of tar-rich coal is of great significance to promote clean and efficient utilization of coal, improve the independent guarantee ability of oil and gas, and achieve carbon emission peak and carbon neutrality. In order to find out the occurrence characteristics of tar-rich coal in the typical mining areas of Carboniferous-Permian coalfield in Northern Shaanxi, based on coal exploration data and sample test results, this paper compares the tar yield of mineable coal seams, summarizes the spatial-temporal distribution rules of tar-rich coal, and discusses the occurrence influential factors. The results show that the average tar yield of mineable …