Results 11 to 20 of about 14,802 (168)

Carbon emissions from in-situ pyrolysis of tar-rich coal based on full life cycle analysis method [PDF]

Meitan xuebao, 2023
The control of carbon emissions has already become a great social strategic problem in China which must be solved at present and in the future. It is imperative to carry out safe, efficient, and low-carbon utilizations in the coal industry under the ...
Xiangyu XUE, Chang’an WANG, Lei DENG, Xing NING, Defu CHE   +4 more
doaj   +2 more sources

Distribution of early and middle Jurassic tar-rich coal and its geological controls in Northern Xinjiang

Meitan kexue jishu
The tar-rich coal resources in northern Xinjiang are rich, accounting for about half of the country's tar-rich coal. The rational development and utilization of tar-rich coal resources in this region is an important supplement to Chinese coal resources ...
Shuzheng NING, Li ZHANG, Xiaotao XU, Jianqiang ZHANG, Zhuo ZOU   +4 more
doaj   +2 more sources

Differences in hydrocarbon generation kinetics between shale and tar-rich coal and temperature conditions for in-situ co-production [PDF]

Meitan xuebao
The area of shale exhibiting middle- to low-maturity constitutes over 90% of the total shale area within the seventh Member of the Yanchang Formation (Chang 7 Member) in the Ordos Basin. Additionally, the tar-rich coal resources of the Lower-Jurassic Yan’
Ruihui ZHENG, Yuan BAO, Zhihuan ZHANG, Xuan YUAN   +3 more
doaj   +2 more sources

Fissure evolution and variation of pyrolysis kinetics parameters of tar-rich coal during heat treatment under different atmosphere

Meitan kexue jishu
The clean and efficient development of tar-rich coal is helpful in ensuring China's energy security. The tar-rich coal from Ningtiaota Mine was selected and heated under N2 and hypoxia atmosphere.
Shuangming WANG, Qiang SUN, Xin HU, Zhenlong GE, Jishi GENG, Shengze XUE, Qingmin SHI   +6 more
doaj   +2 more sources

Quantitative characterization and analysis of pore-fractures in tar-rich coal under high-temperature pyrolysis based on micro-CT imaging [PDF]

Frontiers in Earth Science, 2023
This study investigates pore distribution and permeability behavior of tar-rich coal following high-temperature pyrolysis at 500°C using X-ray computed tomography (CT) scanning. Coal samples post-pyrolysis were CT scanned, generating 1755 cross-sectional
Fu Yang, Fu Yang, Pengfei Jiang, Pengfei Jiang, Pengfei Jiang, Zhonghui Duan, Zhonghui Duan, Zhongyan Cheng, Zhendong Wang, Zhendong Wang   +9 more
doaj   +2 more sources

Spatio-temporal evolution of temperature fields in tar-rich coal and overlying strata during pyrolysis [PDF]

Meitan kexue jishu
In-situ pyrolysis of tar-rich coal is an innovative coal utilization method that heats coal seams by isolating air to extract oil and gas resources. This approach plays a crucial role in improving domestic oil and gas supply and ensuring national energy ...
Jiyuan DUAN, Jishi GENG, Shuangming WANG, Qiang SUN, He ZHANG, Qingmin SHI, Yuhang LI, Boxing YANG, Kexin YU   +8 more
doaj   +2 more sources

Evolution law of nanopore properties during underground in-situ pyrolysis of tar-rich coal [PDF]

Meitan xuebao
Underground pyrolysis of tar-rich coal is a green and low-carbon technology that effectively extracts oil and gas resources from coal. It represents the forefront of clean and low-carbon utilization of coal.
Tao XU, Jie CHEN, Yongping WU, Yubin KE, Panshi XIE, Wenyu LYU   +5 more
doaj   +2 more sources

Study on Pore Structure and Fractal Characteristics of Tar-Rich Coal during Pyrolysis by Mercury Intrusion Porosimetry (MIP)

Geofluids, 2022
This study aims to show how fractal analysis can be effectively used to characterize the pore structure of porous tar-rich coal. In this study, tar-rich coal pores were obtained by mercury intrusion porosimetry (MIP).
Zhendong Wang, Pengfei Jiang, Fu Yang, Yuanyuan Kong, Li Ma, Bohan Xie, Zhonghui Duan   +6 more
doaj   +2 more sources

Experimental study on mechanical damage characteristics of water-bearing tar-rich coal under microwave radiation [PDF]

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
As a recognized special resource, tar-rich coal can extract the country's scarce oil and gas resources and generate semi-coke that can replace anthracite and coking coal.
Pan Yang, Pengfei Shan, Huicong Xu, Jiageng Chen, Zhiyong Li, Haoqiang Sun   +5 more
doaj   +2 more sources

Production capacity prediction of U-shaped horizontal wells for in-situ pyrolysis of tar-rich coal: Experimental and numerical simulation study [PDF]

Meitan xuebao
Under the goal of “dual carbon”, “taking hydrogen and retaining carbon” has become an inevitable choice for the clean utilization of coal, and underground coal pyrolysis provides a new idea for increasing domestic tar and gas production.
Zhen DONG, Yanpeng CHEN, Mengyuan ZHANG, Xinggang WANG, Lixin JIAO, Shuo FENG, Bo REN, Hao CHEN, Junjie XUE, Yufeng ZHAO, Diefang HUANG   +10 more
doaj   +2 more sources