Articles with "coal structure" as a keyword



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Distribution of hydroxyl group in coal structure: A theoretical investigation

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Published in 2017 at "Fuel"

DOI: 10.1016/j.fuel.2016.10.091

Abstract: Abstract Coal structure is very complicated. The ratio of various functional groups in coal may be studied by existing analysis techniques, but the connections of these functional groups are still mostly unknown. In this work… read more here.

Keywords: group coal; hydroxyl; group; hydroxyl group ... See more keywords
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Prediction of coal structure using particle size characteristics of coalbed methane well cuttings

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Published in 2019 at "International Journal of Mining Science and Technology"

DOI: 10.1016/j.ijmst.2018.05.009

Abstract: Abstract Severely deformed coal seams barely deliver satisfactory gas production. This research was undertaken to develop a new method to predict the positions of deformed coals for a horizontal CBM well. Firstly, the drilling cuttings… read more here.

Keywords: coal; coal structure; particle size;
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New advances in coal structure model

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Published in 2018 at "International journal of mining science and technology"

DOI: 10.1016/j.ijmst.2018.06.010

Abstract: Abstract Although human beings have come to understand and utilize coal for a very long history, no theoretical breakthrough in the study of coal structure has been made, which still needs continuous efforts of coal… read more here.

Keywords: new advances; structure model; component structure; structure ... See more keywords
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Coal Structure and Its Implications for Coalbed Methane Exploitation: A Review

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Published in 2021 at "Energy & Fuels"

DOI: 10.1021/acs.energyfuels.0c03309

Abstract: Coal structure refers to the internal structural characteristics of coals including the degree of macroscopic and microscopic deformation, pore structure, and mechanical properties after various ge... read more here.

Keywords: implications coalbed; coalbed methane; structure; coal structure ... See more keywords
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Polyene model of coal structure and metamorphism

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Published in 2017 at "Coke and Chemistry"

DOI: 10.3103/s1068364x17010021

Abstract: Eight coal ranks (G, GZhO, GZh, K, KO, KS, and T) are investigated by IR spectroscopy in the range between 1800 and 650 cm–1, with polynomial decomposition of the spectra obtained. The similarities and differences… read more here.

Keywords: structure metamorphism; metamorphism; model coal; polyene model ... See more keywords
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Evolutions of CO2 Adsorption and Nanopore Development Characteristics during Coal Structure Deformation

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Published in 2020 at "Applied Sciences"

DOI: 10.3390/app10144997

Abstract: The coal structure deformation attributed to actions of tectonic stresses can change characteristics of nanopore structure of coals, affecting their CO2 adsorption. Three tectonically deformed coals and one undeformed coal were chosen as the research… read more here.

Keywords: adsorption; co2 adsorption; deformation; coal structure ... See more keywords
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Coal Structure Prediction Based on Type-2 Fuzzy Inference System for Multi-Attribute Fusion: A Case Study in South Hengling Block, Qinshui Basin, China

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Published in 2023 at "Minerals"

DOI: 10.3390/min13050589

Abstract: The accurate prediction of coal structure is important to guide the exploration and development of coal reservoirs. Most prediction models are interpreted for a single sensitive coal seam, and the selection of sensitive parameters is… read more here.

Keywords: system; coal; prediction; fuzzy inference ... See more keywords