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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Evolution of porosity and clay mineralogy associated with chemical weathering of black shale: A case study of Lower Cambrian black shale in Chongqing, China
TL;DR: In this paper, the pore geometry evolution depends on transport-limited solutions that facilitate mineral breakdown and formation, and the surface fractal dimension of the micro-transition pores was positively correlated with the pyrite and carbonate content, but negatively correlated with secondary clay mineral content.
Journal ArticleDOI
Modification of Zhaotong Lignite by Steam Explosion Treatment: Pore Structure and Oxygen-Containing Functional Groups
TL;DR: In this article, the pore structure and oxygen-containing functional groups of lignite play an important role in drying behavior, spontaneous combustion characteristics, and other applications of Lignite.
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Characterizing the Complexity Assembly of Pore Structure in a Coal Matrix: Principle, Methodology, and Modeling Application
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Properties of lignite and key factors determining the methane adsorption capacity of lignite: New insights into the effects of interlayer spacing on adsorption capacity
TL;DR: In this article, coal composition, pore characteristics, mineral matter, coal rank, and molecular structure of lignite were systematically studied, and the influence of various factors on the adsorption capacity was analyzed.
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The dynamic change of pore structure for low-rank coal under refined upgrading pretreatment temperatures
TL;DR: The pore structure of low-rank coal features a significant heating effect, the pretreatment temperature should not exceed 150°C when the LP-N2A measurements were taken under various pretreatment temperatures.
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.