Results 181 to 190 of about 4,844 (234)

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, Lushi Sun
exaly   +2 more sources

Water Requirement for Coal Slurry Transportation

, 1983
Abstract: The amount of water required for coal slurry transportation is a function of the coal properties and the magnitude of coal movement. The pipeline system characteristics and the method of slurry preparation also affects the overall water requirement of the system.
Kao, David T., Rusher, Sandra L.
openaire   +3 more sources

Viscometry and rheology of coal water slurry

Fuel, 1986
Abstract This paper presents the results of a detailed experimental study on rheological behaviour of coal water slurry (CWS). In contrast to earlier rheological studies at shear rates of rather narrow ranges, this study covered a much wider range of shear rates: 0–800 s −1 in a rotational viscometer and 400–10000 s −1 in a capillary viscometer ...
Shirley C Tsai
exaly   +2 more sources

The influence of pre-absorbing water in coal on the viscosity of coal water slurry

Fuel, 2016
Abstract Coal water slurry (CWS) with high solid content and low viscosity can allow for efficient and environmentally friendly gasification. In the process of CWS preparation, water will enter pores of coal particle to form inner water, resulting in a decrease in free water among particles and an increase in viscosity.
Wei-Feng Li, Jianliang Xu, Haifeng Liu   +2 more
exaly   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

Characterization of coal water slurry prepared for PRB coal

Journal of Fuel Chemistry and Technology, 2014
Abstract 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, Richard L. Axelbaum   +2 more
openaire   +1 more source

Additives the panacea of coal water slurry

Materials Today: Proceedings, 2021
Abstract 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 (
openaire   +1 more source

The effect of coal properties on the viscosity of coal–water slurries

Fuel, 2002
Abstract Studies on coal–water slurries (CWSs) have been conducted for many years to replace fuel oil. In this research project, the effect of coal properties on CWSs have been investigated using two Turkish coals of different ranks and a Siberian bituminous coal. Physical, chemical and surface properties of coal samples were determined. Furthermore,
G Atesok, F Boylu, A.A Sirkeci, H Dincer
openaire   +1 more source