Results 31 to 40 of about 1,754,688 (187)

Experimental study on multi-scale pore structure characteristics of tar-rich coal in Yushenfu mining area

open access: yes, 2021
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 ...
Wen, MA   +6 more
core   +1 more source

Microwave pyrolysis and its applications to the in situ recovery and conversion of oil from tar-rich coal: An overview on fundamentals, methods, and challenges

open access: yesEnergy Reports, 2021
Efficient, safe, and environmentally friendly methods for the low-carbon utilization of coal are required to exploit this resource as a source of cleaner energy. Tar-rich coal can produce a high volume of oil and is abundant in western China.
Yang Ju   +4 more
doaj   +1 more source

Discussion on underground system sealing methods in in-situ pyrolysis exploitation of tar-rich coal

open access: yes, 2023
China has abundant tar-rich coal resource, in-situ underground pyrolysis is the main trend of green and efficient development of tar-rich coal resources.
Youhong, SUN   +4 more
core   +1 more source

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

open access: yesFrontiers 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   +9 more
doaj   +1 more source

Application research on the prediction of tar yield of deep coal seam mining areas based on PSO-BPNN machine learning algorithm

open access: yesFrontiers 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   +8 more
doaj   +1 more source

Occurrence characteristics and resource potential evaluation of tar-rich coal for No.5\u3csup\u3e-2\u3c/sup\u3ecoal seam in Shenfu Mining Area

open access: yes, 2021
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 ...
Qing, XIE   +5 more
core   +1 more source

Synthesis of Ladder and Flexible Polysulfonimides Directly From Anionic Monomers: Investigating Structure–Property Convergence in Succinonitrile–Polymer Electrolyte Blends

open access: yesAngewandte Chemie, EarlyView.
Direct synthesis of sulfonimide‐based polymers of intrinsic microporosity enables comparison with compositionally similar flexible analogs. Incorporation of a common pore‐filling transport medium drives these fundamentally different polymer architectures toward similar bulk conductivity and mechanical properties while revealing distinct microscopic ion‐
Abraham Herzog‐Arbeitman   +8 more
wiley   +2 more sources

Effect of Carbon Foam Catalyst on Tar Upgrading During Low Rank Coal Pyrolysis

open access: yesTaiyuan Ligong Daxue xuebao, 2022
Carbon foam catalysts (CF1, CF2, CF3) were prepared by spontaneous foaming method using Liulin coal (LL) as raw materials, and the pyrolysis experiments of Xinjiang Naomaohu long-flame coal (NMH) and Inner Mongolia Shengli lignite coal (SL) were ...
Yuxuan MA   +4 more
doaj   +1 more source

Potential of oil-rich coal resources in Shaanxi Province and its new development suggestion

open access: yes, 2022
Under the requirement of carbon peak and carbon neutral targets, the low carbon development and utilization of coal resources in Shaanxi Province is imperative.
Shuangming, WANG   +6 more
core   +1 more source

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