Most coal requires some preparation before use. Preparation may range from simply crushing to provide a size consist suitable for certain types of boilers to extensive size reduction and cleaning to remove sulfur and ash-forming mineral matter. At present,
Read More2021.2.15 Sulfite removal from high-sulfur coal fly ash is rapid and selective in acidic pH. Acid generated from oxidation of dissolved sulfite can be gainfully recycled.
Read More2009.12.1 Molten caustic leaching process is effective in reducing significant amount of ash derived from minerals, pyritic sulfur, and organic sulfur from coal. The effect of
Read Moresurfaces. Sulfur in ash also contributes to molten alkali sulfate formation, and, in addition, promotes corrosion of process equipment. Hence, removal of these impurities—ash,
Read Moreremoval percentage of pyritic and organic sulfur in Hazro coal sample. The removal of ash was around 27 % at the highest alkali to coal ratio. The ash reduction was gradually
Read More1982.9.1 Complete removal of sulphur from coal using solutions containing cupric ions Ludmila Lompa-Krzymien ∗ Add to Mendeley doi/10.1016/0016-2361
Read MoreThe combined effect of desulfurization and ash removal in the process of coal desulfurization by microwave with peroxyacetic acid was determined by evaluating
Read More2001.10.25 Results from bench- and pilot-scale tests show the hydrothermal treatment method is technically promising for simultaneous sulfur and HAPs removal
Read MoreMost of the inorganic sulfur and a significant portion of the organic sulfur were removed. Molten caustic leaching process is effective in reducing significant amount of ash derived
Read More2009.12.1 The best removal of ash was observed by using 1 M bortrifluorid (BF3) solution at 250°C and 70 atm. Depending on the leaching conditions and coal used,
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