Results 131 to 140 of about 593 (174)
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Fuel, 2020
Abstract The phase diagram characteristics of Indonesian coal ash were studied with thermodynamic equilibrium calculations and the Na2O-Al2O3-SiO2 ternary system. Baikuang coal was selected as the blended coal, and the blending ratio was optimized.
Yanqi Fan +3 more
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Abstract The phase diagram characteristics of Indonesian coal ash were studied with thermodynamic equilibrium calculations and the Na2O-Al2O3-SiO2 ternary system. Baikuang coal was selected as the blended coal, and the blending ratio was optimized.
Yanqi Fan +3 more
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Utilization of coal slag from pressurized coal-gasification plants
Journal of Materials for Energy Systems, 1980Slag tapped from pressurized slagging gasifiers has unique properties not associated with similar slag formed under nonpressurized conditions. Upon heating to a temperature in the 800 to 900 °C range, this slag expands to as much as twenty times its initial volume, producing a glass foam that is relatively inert and could be used to produce ...
C. R. Kennedy +3 more
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Numerical Simulation and Optimization of Slag Bath Coal Gasification Reaction
Proceedings of the 7th International Conference on Informatics, Environment, Energy and Applications, 2018Molten blast furnace slag(BFS) is a huge waste energy in iron and steel industry, the waste heat recovery of the molten BFS has attracted more and more attentions in recent years. A new process for generating hydrogen-enriched syngas by the coal gasification using molten BFS as heat carrier is built, based on this, numerical simulation of coal ...
Yaquan Zhan +3 more
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Thermal and mechanical properties of coal gasification slag based foam concrete
Environmental Science and Pollution Research, 2023Foam concrete possesses low density and excellent thermal insulation properties and has been widely used in construction industry. Considering the recycling and reusing of coal gasification slag (CGS), a solid waste product in the coal chemical industry, CGS was used as the supplementary cementations material to prepare foam concrete (CGS-FC) in this ...
Leipeng, Liu +5 more
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Measurement and simulation of flow properties of coal ash slag in coal gasification
AIChE Journal, 2011AbstractThe viscosities of 45 coal ash slag samples at high temperature have been measured under different temperatures and shear rates. The computer thermodynamic software package FactSage has been used to predict liquidus temperatures, volume fractions of crystallized solid particles (ϕ), and the compositions of remaining liquid phase for 45 coal ash
Wenjia Song +4 more
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Environmental Science and Pollution Research, 2023
We used magnesium slag (MS) as a calcium source for modifying coal gasification coarse slag (CGCS) in the presence of NaOH to prepare a novel phosphate adsorbent (MS-CGCS). Ca2SiO4 in MS reacts with NaOH during the high-temperature synthesis process, with sodium displacing a part of the calcium content in Ca2SiO4 and entering the mineral lattice to ...
Baoguo, Yang +6 more
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We used magnesium slag (MS) as a calcium source for modifying coal gasification coarse slag (CGCS) in the presence of NaOH to prepare a novel phosphate adsorbent (MS-CGCS). Ca2SiO4 in MS reacts with NaOH during the high-temperature synthesis process, with sodium displacing a part of the calcium content in Ca2SiO4 and entering the mineral lattice to ...
Baoguo, Yang +6 more
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Flow properties and rheology of slag from coal gasification
Fuel, 2010Abstract We have studied the rheological characteristics of Texaco gasifier slag at high-temperature. Slag samples have been analyzed by X-ray fluorescence, X-ray diffraction, and scanning electron microscopy. The rheological behavior of the slag has been investigated experimentally using a high-temperature rheometer at temperatures between 1200 °C ...
Wenjia Song +5 more
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The Effect of Industry Slag on Coal Water Slurry and Gasification
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2014With the development of the coal gasification industry, the output of industry slag is increasing. The industry slag, mostly as a waste, is not only composed of ash but also some coal that was not gasified. Thus, it is a critical problem to adequately utilize the slag.
X. Liu, Z. J. Zhou, F. C. Wang
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Preparation of Sialon powder from coal gasification slag
Journal of Wuhan University of Technology-Mater. Sci. Ed., 2010X-ray fluorescence spectrometry (XRF), X-ray powder diffractometry (XRD) and scanning electron microscopy (SEM) were used to characterize the chemical composition, phase constituent and microstructure of the coal gasification slag. Sialon powders were synthesized by carbothermal reduction and nitridation using the coal gasification slag as raw ...
Yun Tang +3 more
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The Effects of Slag Compositions on the Coal Gasification Reaction in Molten Blast Furnace Slag
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2013The char-CO2 gasification reactions in molten blast furnace slag were studied kinetically by the isothermal thermogravimetry using STA409PC thermal analyzer. The effects of slag compositions (SiO2, MgO, CaO, and Al2O3) on gasification reaction were investigated. The results showed that CaO has certain catalytic effects on gasification reaction; however,
P. Li, Q. Yu, Q. Qin, W. Du
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