Results 81 to 90 of about 5,565,146 (221)

Underground mining slurry transportation viability

open access: yesInternational Journal of Coal Science & Technology, 2019
Underground mining requires lot of water pumping to surface which increases cost. Because of safety, support, ventilation and environment costs underground mines are closing down gradually all over the world.
Binay Samanta, Arun Baran Samaddar
doaj   +1 more source

Development and evaluation of highly-loaded coal slurries. [Coal-fuel oils, coal-fuel oils-water and coal-water]

open access: yes, 1980
For the past two and one-half years Atlantic Research has been conducting a research program which involved development and combustion of slurries of coal in oil and in water.
McHale, E.T.
core   +1 more source

Coal Water Slurry Combustion in a Simulated Diesel Engine Cylinder [PDF]

open access: yes, 1993
Uncertainty about the reliability of the imported oil supply to the United States has led to research into alternative sources for domestic energy needs.
Holmes, Allan Robert
core   +1 more source

Material Characterization of Lignin‐Filled Polypropylene Composites

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 40, October 20, 2026.
Ground and spray‐dried lignin powders are compared as fillers for polypropylene composites. Differences in powder preparation methods are associated with differences in powder characteristics and composite behavior after melt compounding. Spray‐dried lignin produces smaller particles and fewer large agglomerates, while a 5 wt% lignin loading provides a
Sungjun Hwang   +3 more
wiley   +1 more source

Coal-CO[subscript 2] Slurry Feed for Pressurized Gasifiers: Slurry Preparation System Characterization and Economics

open access: yes, 2013
Gasification-based plants with coal-CO[subscript 2] slurry feed are predicted to be more efficient than those with coal-water slurry feed. This is particularly true for high moisture, low rank coal such as lignite.
Field, Randall   +3 more
core   +1 more source

Influence mechanism of Fe3+ doping on the hydrophobic regulation of kaolinite/water interface: Experiments and MD simulations

open access: yesInternational Journal of Mining Science and Technology
The surface/interfacial reactivity of clay is a critical factor influencing the sedimentation of coal slurry water. To achieve efficient sedimentation of coal slurry water, this paper introduces a novel approach that regulates the hydrophobicity of ...
Jun Chen   +5 more
doaj   +1 more source

Review of coal-water fuel pulverization technology and atomization quality registration methods

open access: yesMATEC Web of Conferences, 2017
Possibilities of coal-water fuel application in industrial power engineering are considered and described. Two main problems and disadvantages of this fuel type are suggested.
Zenkov Andrey   +2 more
doaj   +1 more source

Treatment of acid mine drainage water at the Blaauwkraanz South discard facility [PDF]

open access: yesMATEC Web of Conferences
The Blaauwkraanz Mineral Residue Facility (MRF) is a coal discards facility designed to accommodate coarse and fine coal discards from the Navigation Coal Processing Plant in South Africa.
Mafukata Mulweli Yolanda   +1 more
doaj   +1 more source

Design of Atomizers and Burners for Coal-Water Slurry Combustion [PDF]

open access: yes, 1998
The Falling Droplet device was used to measure the extensional viscosity of a variety of aqueous polymer solutions. These solutions were atomized with the miniature ''inverse'' twin-fluid atomizer. Droplet size measurements were made with a Malvern laser diffraction particle sizing device.
Chigier, Norman   +2 more
openaire   +6 more sources

Survey of state water laws affecting coal slurry pipeline development

open access: yes, 1980
This report summarizes state water laws likely to affect the development of coal slurry pipelines. It was prepared as part of a project to analyze environmental issues related to energy transportation systems.
Rogozen, M.B.
core  

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