Results 181 to 190 of about 36,391 (238)

Study on the pyrolysis behavior of coal-water slurry and coal-oil-water slurry

Journal of the Energy Institute, 2022
Abstract In this work, different concentrations of coal-water slurry and coal-oil-water slurry were prepared and pyrolyzed at various temperatures of 800–1000 °C. The chemical characteristics and combustion reactivities of chars and the formation mechanism of main gas components of CO, CO2, CH4, and H2 were investigated. With the water content of the
Gan Wan, Jie Yu, Xuyang Wang, Lushi Sun
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Blended coals for improved coal water slurries

Journal of China University of Mining and Technology, 2008
Three 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, Guo-guang WU, Qi-hui LI, Zhi-qiang SUN, Fang ZENG, Guang-you WANG, Xian-liang MENG   +6 more
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Rheology of coal-water slurries

Solid Fuel Chemistry, 2009
The 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, G. S. Khodakov, E. G. Gorlov   +2 more
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Study on the slurrying mechanism of coal water slurry prepared from coal gasification wastewater

The Canadian Journal of Chemical Engineering, 2023
Abstract 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, Biao Feng, Chenxuan Xu, Cong Chen, Jianbin Wang, Huimin Huang   +5 more
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Coal Water Slurry Fuels — An Overview

Mining, Metallurgy & Exploration, 1984
There are a number of incentives for potential users of coal slurry fuels--and in particular for coal-water mixtures (CWMs) which the authors address in this paper. First, CWM represents an assured supply of fuel at a price which is quite easily predictable into future years. Second CWM is available in the near term.
L. Pommier, T. Frankiewicz, W. Weissberger   +2 more
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Combustion of coal-water slurry droplets

Fuel, 1986
Abstract The combustion of single droplets of coal-water slurries was studied experimentally by determining the instantaneous size and mass of the droplets and theoretically modelled for the char agglomerate by allowing for the presence of the ash layer as well as the residual volatiles.
G.E. Liu, C.K. Law
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Rheological Behavior of Coal-Water Slurry

Energy Sources, 2002
The 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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Breakage Characteristics of Coal−Water Slurries

Energy & Fuels, 1996
Grinding 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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