Results 21 to 30 of about 1,754,688 (187)

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   +4 more sources

Thermodynamic Analysis of In Situ Underground Pyrolysis of Tar-Rich Coal: Primary Reactions. [PDF]

ACS Omega, 2023
In situ underground pyrolysis of tar-rich coal is significant for alleviating the scarcity of oil and gas resources and realizing the green and efficient development and utilization of coal in China. Tar-rich coal is often subjected to high axial pressure, surrounding pressure, and pore pressure in the in situ underground pyrolysis environment ...
Yang F, Gao K, Yu Z, Ma L, Cao H, Yang P, Guo W, Zhang J, Yang B, Wu Z.   +9 more
europepmc   +3 more sources

Thermodynamic Analysis on In Situ Underground Pyrolysis of Tar-Rich Coal: Secondary Reactions. [PDF]

ACS Omega, 2023
To develop the in situ underground pyrolysis process of tar-rich coal more scientifically, the effect of temperature and pressure on the distribution of pyrolysis products should be clarified. This paper selected the typical components in five distillates of light tar, phenol tar, naphthalene tar, washing tar, and anthracene tar as the main reaction ...
Fu D, Yu Z, Gao K, Duan Z, Wang Z, Guo W, Yang P, Zhang J, Yang B, Yang F, Wu Z.   +10 more
europepmc   +3 more sources

Multi-Physics Simulation of Tar-Rich Coal In Situ Pyrolysis with a Multiregion Homogenization Treatment. [PDF]

ACS Omega, 2023
The macroscopic multi-physics simulation of tar-rich coal in situ pyrolysis (TCISP) is conducted, in the fractured porous zone, by coupling heat transfer, fluid flow, and chemical reaction. A novel TCISP pattern of gas injection between fractured zones is proposed by treating the fractured porous zone as a homogeneous porosity gradient descending ...
Ye Q, Li M, Hao J, Huang Z, Wei J.
europepmc   +4 more sources

Machine learning-based prediction and experimental validation of the pyrolysis product distribution in tar-rich coals

Meitian dizhi yu kantan
BackgroundTar-rich coals serve as an important coal-based oil and gas resource in China, while their pyrolysis product distribution is governed by the coupling effects of coal properties and reaction conditions.
Shuai DONG, Hongqiang LI, Zhiqiang WU, Zunyi YU, Zitao LYU, Wei GUO, Panxi YANG, Keming FU, Xuanzhi HAO, Gen LIU, Bolun YANG   +10 more
doaj   +2 more sources

Investigation of Pyrolysis and Mild Oxidation Characteristics of Tar-Rich Coal via Thermogravimetric Experiments. [PDF]

ACS Omega, 2022
Tar-rich coal has the potential to substitute the supply of oil-gas resources, which is abundant in China. The effective conversion of tar-rich coal into oil-gas products can promote coal utilization, reduce resource wastage, alleviate environmental pollution, and benefit carbon neutrality.
Ma L, Mao Q, Wang C, Duan Z, Chen M, Yang F, Liu J, Wang Z, Che D.   +8 more
europepmc   +3 more sources

Study on the Pyrolysis Characteristics and Kinetic Analysis of Hami Tar‐Rich Coal

Chemical Engineering & Technology
ABSTRACT In this study, two kinds of tar‐rich coal sourced from Xinjiang were adopted in a fixed‐bed reactor to explore their optimal pyrolysis conditions and pyrolysis product characteristics, as well as to clarify the variation law of pyrolysis activation energy.
Yang Geng, Jing Liao, Yun Wu, Zhijun Li, Bingjian Zhao, Guofeng Li, Shiyong Wu   +6 more
openaire   +2 more sources

Simulation study on in-situ pyrolysis behavior of tar-rich coal under overburden stress

Meitan xuebao
The oil and gas conversion of tar-rich coal in-situ pyrolysis provides a new idea to improve the domestic oil and gas independent guarantee and push the green and low-carbon industry of coal.
Qingmin SHI, Xiaolong YANG, Shuangming WANG, Bingyang KOU, Shengquan WANG, Yaya SHI, Fu YANG, Jiuqing LI   +7 more
doaj   +2 more sources

Distribution and controlled geological factors of oil-rich coal in shaanxi province

Meitan kexue jishu, 2023
The green, clean and efficient utilization of coal is an important way for the sustainable development of coal industry. Shaanxi province is rich in coal resources, which are mainly distributed in the five coal fields in the north of Shaanxi province ...
YANG Fu, DUAN Zhonghui, MA Li, FU Deliang, TIAN Tao, HE Dan, YUE Mingjuan   +6 more
doaj   +1 more source

Occurrence characteristics of Carboniferous-Permian tar-rich coal and its influencing factors in Northern Shaanxi

, 2021
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.
Zheng, YAO, Huabing, LI, Qiang, WANG, Ning, LI, Qianzhou, LUO, Jun, GAO   +5 more
core   +1 more source