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:
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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Experimental investigation of erosion effect on microstructure and oxidation characteristics of long-flame coal
TL;DR: In this paper , the effect of erosion on coal microstructure and its oxidation characteristics, eroded coals were prepared by eroding coal samples in an acidic aqueous solution for 30 days, 90 days and 180 days, respectively.
Journal ArticleDOI
Investigation of Organic-Shale Nanopores in the Lower Cambrian Niutitang Formation Using Low Temperature N2 and Co2 Adsorption: Multifractality and Classification
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Coal permeability prediction method based on the microscopic pore-fracture dual-porosity structure
TL;DR: In this article , the pore-fracture structure and coal permeability of coal samples were quantitatively analyzed by scanning electron microscopy (SEM), and the authors found that both pore and fracture have their own distribution characteristics.
Journal ArticleDOI
Surface pore characteristics of original coal dust produced in underground mining sites and their impact on the moisture content
By Jianguo Liu,Shu Wang,Longzhe Jin,Yixuan Wei,OU Shengnan,Tianyang Wang,Jingge Xu,Xianfeng Liu,Guoyin Tao +8 more
TL;DR: In this paper , the effect of the surface pore parameters of coal dust on its wettability was explored, and correlations between the pore characteristics of the OCD samples and their moisture contents and initial contact angle (ICA) were established and discussed.
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Multiscale Fractal Characterization of Pore Structure for Coal in Different Rank Using Scanning Electron Microscopy and Mercury Intrusion Porosimetry
TL;DR: In this paper , a multiscale fractal analysis of the pore system for coal is performed using the techniques of Scanning Electron Microscopy (SEM) and Mercury Intrusion Porosimetry (MIP) to obtain more useful results.
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.