Results 21 to 30 of about 1,795,114 (414)

Hydrogen Adsorption on Sub‐Bituminous Coal: Implications for Hydrogen Geo‐Storage

open access: yesGeophysical Research Letters, 2021
Hydrogen is a clean fuel that can potentially revolutionize the energy supply chain and decarbonize fuel consumption. However, a key hurdle that needs to be overcome before a full‐scale hydrogen economy can be established is hydrogen storage which is ...
S. Iglauer   +3 more
semanticscholar   +1 more source

Mechanical criterion for coal and gas outburst: a perspective from multiphysics coupling

open access: yesInternational Journal of Coal Science & Technology, 2021
Although a series of hypotheses have been proposed, the mechanism underlying coal and gas outburst remains unclear. Given the low-index outbursts encountered in mining practice, we attempt to explore this mechanism using a multiphysics coupling model ...
Ting Liu, B. Lin, Xuehai Fu, Ang Liu
semanticscholar   +1 more source

Toward a global coal mining moratorium? A comparative analysis of coal mining policies in the USA, China, India and Australia [PDF]

open access: yes, 2018
To stop global warming at well below 2° C, the bulk of the world’s fossil fuel reserves will have to be left in the ground. Coal is the fossil fuel with the greatest proportion that cannot be used, and various advocacy groups are campaigning for a ban on
Blondeel, Mathieu, Van de Graaf, Thijs
core   +1 more source

Strategies for improving the supply chain of coal in Norte de Santander, Colombia

open access: yesBoletín de Ciencias de la Tierra, 2015
This article aims to structure and characterize the supply chain of coal in Norte de Santander, identifying the main factors influencing the improvement of it.
Jose Alejandro Cano   +3 more
doaj   +1 more source

Pore characteristics and fractal characterization variability of typical middle- and high-rank coal reserves: A case study of middle- and high-rank coal samples in western Guizhou

open access: yesFrontiers in Energy Research, 2022
This article focused on the study of pore structure characteristics of Songhe and Linhua coal samples based on mercury injection experiments and high-pressure isothermal adsorption experiments.
Yi Lou   +7 more
doaj   +1 more source

THE DETERIORATION OF COAL. [PDF]

open access: yesJournal of the American Chemical Society, 1908
n ...
Parr, S. W., Wheeler, W. F.
openaire   +2 more sources

An installation-level model of China's coal sector shows how its decarbonization and energy security plans will reduce overseas coal imports [PDF]

open access: yesarXiv, 2021
China aims for net-zero carbon emissions by 2060, and an emissions peak before 2030. This will reduce its consumption of coal for power generation and steel making. Simultaneously, China aims for improved energy security, primarily with expanded domestic coal production and transport infrastructure.
arxiv  

Cinza e carbonato de cálcio na mitigação de drenagem ácida em estéril de mineração de carvão Coal ash and calcium carbonate on acid drainage mitigation in coal mining overburden

open access: yesRevista Brasileira de Ciência do Solo, 2006
A drenagem ácida é um problema ambiental, não-exclusivo, mas comumente associado à mineração do carvão e decorrente da oxidação de sulfetos, como a pirita, presente nos estéreis e rejeitos da mineração.
Evaldo Rodrigues Soares   +3 more
doaj   +1 more source

Automatic Identification of Coal and Rock/Gangue Based on DenseNet and Gaussian Process [PDF]

open access: yesarXiv, 2022
To improve the purity of coal and prevent damage to the coal mining machine, it is necessary to identify coal and rock in underground coal mines. At the same time, the mined coal needs to be purified to remove rock and gangue. These two procedures are manually operated by workers in most coal mines.
arxiv  

Research on the Composition and Distribution of Organic Sulfur in Coal

open access: yesMolecules, 2016
The structure and distribution of organic sulfur in coals of different rank and different sulfur content were studied by combining mild organic solvent extraction with XPS technology.
Lanjun Zhang   +6 more
doaj   +1 more source

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