Results 171 to 180 of about 5,565,146 (221)
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Blended coals for improved coal water slurries
Journal of China University of Mining and Technology, 2008Three coal samples of different ranks were used to study the effect of coal blending on the preparation of Coal Water Slurry (CWS). The results show that by taking advantage of two kinds of coal, the coal concentration in slurry made from hard-to-pulp coal can be effectively improved and increased by 3%–5% generally.
Tian-ye GU +6 more
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Rheology of coal-water slurries
Solid Fuel Chemistry, 2009The costs of preparation and burning of coal slurries, in particular, coal-water fuel (CWF), considerably exceed the cost of coal utilization according to the conventional technology. CWF technology projects suggest that additional expenditures will be compensated for by the profitability of their pipeline transport in the laminar regime.
N. I. Red’kina +2 more
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Characterization of coal water slurry prepared for PRB coal
Journal of Fuel Chemistry and Technology, 2014Abstract Powder River Basin (PRB) coal, which accounts for over 40% of the coal consumed for power generation in the United States, was investigated for preparation of coal water slurry (CWS). The static stability and rheology of the CWS were characterized as a function of loading.
Fei Yi, Akshay Gopan, Axelbaum Richard L
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Performance Study of Coal Water Slurry
Applied Mechanics and Materials, 2014This paper is based on the research of the coal water slurry rheological property and stability. The influence of the concentration, additives and temperature on the rheological properties of the slurry has also been studied. The apparent viscosity increases with increasing concentration of coal water slurry, and decreases with increasing temperature ...
Ke Gai +3 more
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Breakage Characteristics of Coal−Water Slurries
Energy & Fuels, 1996Grinding tests were conducted under various conditions to characterize the breakage characteristics of coal-water mixtures. Five bituminous coals were ground in a conventional tumbling ball mill for different times at solids concentrations of 40-70% by weight, with and without the use of a dispersant.
Heechan Cho, Mark S. Klima
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Study on the slurrying mechanism of coal water slurry prepared from coal gasification wastewater
The Canadian Journal of Chemical Engineering, 2023Abstract The coal gasification process produces a large amount of wastewater which is seriously polluted and difficult to biochemically treat. The regasification of coal water slurry produced from gasification wastewater meets the requirements of clean and efficient use of energy and the concept of circular ...
Dedi Li +5 more
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Rheological Behavior of Coal-Water Slurry
Energy Sources, 2002The rheological behavior of some Indian coal-water slurry (CWS) was investigated using a HAAKE RV30 viscometer. The objective was to study the effect of solid concentration, ash content, pH, and temperature on the rheology of CWS. It was found that CWS exhibits pseudoplastic behavior. The apparent viscosity varies with the amount of coal in the slurry,
S. K. Mishra, P. K. Senapati, D. Panda
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The mechanism of combustion of coal-water slurries
Symposium (International) on Combustion, 1985The combustion of coal-water slurries has been investigated using suspended and falling droplet techniques. Measurements have eeen made of ignition delays, mass loss and temperature rise for a range of coals with differing coal particle sizes and slurry preheat temperatures.
Patricia L. Murdoch +2 more
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Atomization of Coal Water Slurry Sprays
SAE Technical Paper Series, 1994<div class="htmlview paragraph">The atomization of coal water slurry (CWS) sprays is modeled using the aerodynamic theory of atomization. Several extensions to the theory have been explored to account for the non-Newtonian behavior of the slurry.
Manikandan Prithiviraj +1 more
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Additives the panacea of coal water slurry
Materials Today: Proceedings, 2021Abstract Indian high ash coal was used for the preparation of coal water slurry consisting of coarse and fine particles in the proper proportion. Four bimodal samples were prepared with the combination of four coarse fractions such as (212 µm–300 µm, 90 µm–300 µm, 150 µm–212 µm, 75 µm–150 µm) with fine fraction of (
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