Journal ArticleDOI
Characteristics of pore structure and fractal dimension of low-rank coal: A case study of Lower Jurassic Xishanyao coal in the southern Junggar Basin, NW China
Haijiao Fu,Dazhen Tang,Ting Xu,Hao Xu,Shu Tao,Song Li,Zhenyong Yin,Baoli Chen,Cheng Zhang,Linlin Wang +9 more
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TLDR
In this paper, a series of laboratory experiments were performed to firstly analyze the characteristics of the pore structure in low-rank coal (R o 1000nm), with a poor development of mesopores (100-1000nm).About:Â
This article is published in Fuel.The article was published on 2017-04-01. It has received 211 citations till now. The article focuses on the topics: Fractal analysis & Fractal dimension.read more
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Pore structure and diffusion characteristics of intact and tectonic coals: Implications for selection of CO2 geological sequestration site
TL;DR: In this article, the pore structure characteristics and fractal dimensions of tectonic coal samples were analyzed by mercury intrusion porosimetry, N2 (77 K)/CO2 (273 K) adsorption methods, and methane adaption and diffusion properties of these coal samples.
Journal ArticleDOI
Insights into Pore Structure and Fractal Characteristics of the Lower Cambrian Niutitang Formation Shale on the Yangtze Platform, South China
Zixuan Liu,Detian Yan,Xing Niu +2 more
TL;DR: In this article, a series of experiments were conducted on outcrop samples from the Lower Cambrian Niutitang Formation on Yangtze Platform, including X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and low-temperature nitrogen adsorption.
Journal ArticleDOI
Pore Structure Characteristics of Coal and Their Geological Controlling Factors in Eastern Yunnan and Western Guizhou, China
TL;DR: It is found that TPI is the main controlling factor of the pore structure of type A coal samples, while the pores of type B coal samples are jointly controlled by TPI and coal rank.
Journal ArticleDOI
Experimental Investigation for Pore Structure and CH4 Release Characteristics of Coal During Pulverization Process
TL;DR: In this paper, a series of experiments were carried out to investigate the pore structure, particle size distribution, and CH4 release characteristics of anthracite during the pulverization process.
Journal ArticleDOI
Pore structure evolution and fractal characteristics of Zhaotong lignite during drying
TL;DR: In this paper, the changes in the physical structure of Zhaotong lignite during the drying process were examined by study its microstructure, and the relationship between fractal dimension and water content was established.
References
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Adsorption of Gases in Multimolecular Layers
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Microfluidics: Fluid physics at the nanoliter scale
Todd M. Squires,Stephen R. Quake +1 more
TL;DR: A review of the physics of small volumes (nanoliters) of fluids is presented, as parametrized by a series of dimensionless numbers expressing the relative importance of various physical phenomena as mentioned in this paper.
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Recommendations for the characterization of porous solids (Technical Report)
Jean Rouquerol,D. Avnir,C. W. Fairbridge,D. H. Everett,J. M. Haynes,N. Pernicone,J. D. F. Ramsay,Kenneth S. W. Sing,Klaus K. Unger +8 more
TL;DR: In this article, the authors present a tool for the selection and appraisal of the methods of characterization of porous solids, and also give the warnings and guidelines on which the experts generally agree.
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Coalbed methane: A review
TL;DR: In this paper, it is shown that the micropores are where most methane adsorption occurs in coal seams, and the methane molecule may actually stretch, minutely, the pore and thus with de-gassing of the reservoir, could result in matrix shrinkage, allowing opening of the fracture (cleat) system in the coal and thus enhancing permeability.
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Petrophysical characterization of coals by low-field nuclear magnetic resonance (NMR)
TL;DR: Wang et al. as mentioned in this paper proposed a new NMR-based per-meability model that better estimates the permeability of coals, which has potential applications for NMR well logging in coalbed methane exploration.