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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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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Pore structure evolution during lean-oxygen combustion of pyrolyzed residual from low-rank coal and its effect on internal oxygen diffusion mechanism
TL;DR: In this article , the pore morphology changes from irregular ink-bottle shape of raw coal to cylindrical shape of pyrolyzed char, then to slit-shaped and wedge-shaped pores under the effect of oxidative expansion, and finally coalesce into amorphous macropores during combustion.
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Fractal characteristics of pulverized high volatile bituminous coals with different particle size using gas adsorption
TL;DR: In this paper , the effect of particle size on fractal characteristics of pores in coal, three high volatile bituminous coals with mean maximum vitrinite reflectance of 0.82-0.90% collected from the Naryksko-Ostashinskaya coalbed methane field in Kuznetskiy Basin in Russia were crushed and sieved to five progressively decreasing particle size fractions.
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Experimental study on inhibition of spontaneous combustion of different-rank coals by high-performance m-Cresol water-based inhibitor solutions
He Zhenglong,Tunç Yıldırım +1 more
TL;DR: In this article , a simple and efficient m-Cresol water-based inhibitor was proposed, and the inhibitory effects of its solutions on the spontaneous combustion of different-rank coals were discussed.
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Study of the Microstructural Characteristics of Low-Rank Coal under Different Degassing Pressures
TL;DR: In this article , low-rank coal samples from the Xishanyao Formation in the southern Junggar basin of Xinjiang were processed under different negative pressures in order to examine the microstructural characteristics of lowrank coal reservoirs.
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The rock-fabric/petrophysical characteristics and classification of the micropores hosted between the calcite and dolomite crystals
TL;DR: In this article, an integrated petrographic and petrophysical approach, which combines thin section, high-resolution field emission scanning electron microscopy (FESEM) observations, and nuclear magnetic resonance (NMR) measurements, is chosen to study the deep to ultradeep carbonate in the Shunnan area, Tarim Basin, NW China.
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.