Results 11 to 20 of about 8,142 (224)

Study on pyrolysis characteristics of oil-rich coal under in-situ conditions and industrial-scale extraction simulation

Frontiers in Earth Science
IntroductionIn-situ pyrolysis technology for oil-rich coal represents a low-carbon resource development strategy characterized by ‘hydrogen extraction and carbon retention,’ holding significant importance for advancing the efficient exploitation of coal ...
Xiao Li, Xiao Li, Ying Tang, Ying Tang, Youwu Li, Youwu Li, Fan Yang, Fan Yang, Xiaodan Wu, Xiaodan Wu, Jingyao Sun, Jingyao Sun, Jingyun Cui, Jingyun Cui, Qing Zhang, Qing Zhang, Siqi Yuan, Siqi Yuan, ZhiQin Kang   +18 more
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Study on initial fracture distribution and bearing damage evolution mechanism of disturbed coal samples in oil-rich coal deposits in western China

Frontiers in Materials
The simultaneous formation of stress transfer and structural optimization in deep underground engineering strongly influences the occurrence and severity of dynamic disasters, especially under complex stress–structure conditions.
Yawu Shao, Yawu Shao, Yawu Shao, Yawu Shao, Lei Zhu, Lei Zhu, Lei Zhu, Chang Xin, Gang Han, Gang Han, Gang Han, Haifei Lin, Hu Liu, Hu Liu, Hu Liu, Jiahao Xie, Jiahao Xie, Jiahao Xie, Jiahao Xie, Mingming Sun, Mingming Sun, Mingming Sun, Jin Wang, Jin Wang, Jin Wang   +24 more
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Geological Evaluation of In-Situ Pyrolysis Development of Oil-Rich Coal in Tiaohu Mining Area, Santanghu Basin, Xinjiang, China

Energies
The applicability of the in-situ pyrolysis of oil-rich coal is highly dependent on regional geological conditions. In this study, six major geological factors and 19 key parameters influencing the in-situ pyrolysis of oil-rich coal were systematically ...
Guangxiu Jing, Xiangquan Gao, Shuo Feng, Xin Li, Wenfeng Wang, Tianyin Zhang, Chenchen Li   +6 more
doaj   +2 more sources

The Resources of Oil-rich Coals in China

, 2021
Abstract The resource characteristics of coal-rich, oil-deficient, and low-gas have determined the need to fully exploit the advantages of coal resources in China. China holds a large amount of low-rank coal with high volatile content and high tar yield.
Shuzheng Ning, Li Zhang, XinQian Shu, JianQiang Zhang, Zhuo Zou, Yuanfeng Shu, Danfeng Wang, Shaoqing Huang, Kang Liu, Hanying Sun   +9 more
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Application research on the prediction of tar yield of deep coal seam mining areas based on PSO-BPNN machine learning algorithm

Frontiers in Earth Science, 2023
There are abundant deep coal resources in northern Shaanxi, but the fragile natural environment in this area hinders the large-scale exploitation of oil-rich coal.
Junwei Qiao, Junwei Qiao, Junwei Qiao, Changjian Wang, Gang Su, Xiangyang Liang, Shenpei Dong, Yi Jiang, Yu Zhang   +8 more
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Characteristics of Oil Shale Quality and Prospects for Comprehensive Development and Utilization in the Dalianhe Coal Mining Area, Northeastern China

Energies, 2023
Oil shale is an important unconventional oil and gas resource, but it is poorly utilized in the Dalianhe coal mining area, northeastern China. Systematic sampling and test analysis were used to evaluate the characteristics of oil shale quality.
Zhixun Liu, Hao Ran, Heping Yang, Shunyu Yao, Cheng Ma   +4 more
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EXPERIMENTAL COMPARISON OF THE WEIGHT LOSS DYNAMIC DURING PYROLYSIS BETWEEN LONG FLAME COAL AND OIL RICH COAL

International Journal of Innovative Research in Advanced Engineering, 2022
For the isothermal pyrolysis of oil rich coal, the activation energy E =235.92 KJ/mol, and the pre-exponential factor lnA=32.324. The activation energy of oil rich coal under isothermal pyrolysis condition is larger than that of long flame coal, E =162.15 KJ/mol, which means that the conversion rate of long flame coal is larger than that of the oil ...
Tao Yang, Dong Li, Xuemei Zhang, Qinghua Ma, Yang Wang, Jingyuan Hao   +5 more
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Key problems in in-situ pyrolysis of tar-rich coal drilling for extraction of coal-based oil and gas resources

Meitan xuebao, 2023
Tar-rich coal is a special coal resource with the property of oil and gas resources. Developing the oil and gas resources contained in the tar-rich coal is of great significance for ensuring energy security and realizing the goal of "dual carbon".
Deliang FU, Zhonghui DUAN, Fu YANG, Li MA, Zhendong WANG, Tao TIAN, Dan HE   +6 more
doaj   +1 more source

Differences on Geochemical Characteristics and Their Implicating Significances of Nitrogen in Coal-Derived Gas and Oil-typed Gas in China

Frontiers in Earth Science, 2021
Natural gases in China are mainly coal-derived gas, with assistance from oil-typed gas. At present, many genetic identification methods, from hydrocarbon composition and isotope to light hydrocarbon and biomarker indexes, have been formed, but combined ...
Wang Xiaobo, Wang Xiaobo, Li Jian, Li Jian, Yang Chunxia, Li Zhisheng, Li Zhisheng, Chen Jianfa, Zheng Yue, Wang Yifeng, Wang Yifeng, Li Jin, Li Jin, Yang Chunlong, Yang Chunlong, Hao Aisheng, Hao Aisheng, Ge Shouguo   +17 more
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Directional preparation of naphthalene oil-rich tar from Beisu low-rank coal by low-temperature catalytic pyrolysis

Carbon Resources Conversion, 2020
Low-rank coal (LRC) can be converted to high value-added naphthalene and its alkylated derivatives through low-temperature catalytic pyrolysis. In this paper, the catalytic pyrolysis of Beisu LRC in a fixed-bed at low temperature was investigated. And the catalytic effects of HZSM-5, low-temperature carbocoal (LtC), and LtC-HZSM-5 on the content and ...
Tao Liu, Xiuli Zhang, Yongzhuo Liu, Lingyun Wang, Qingjie Guo   +4 more
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