Alkaline desulfurization is more effective in removing pyritic sulfur from coal, which is the less abundant form than the organic sulfur. Lignite and coal samples from Turkish resources were extracted with an aqueous alkaline solution obtained from the water-soluble fraction of biomass ash. By this method, high sulfur removal from lignites was possible.
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[PDF]Get PriceSep 01, 2014 · Read "Simultaneous ash and sulfur removal from bitumen: Experiments and neural network modeling, Fuel Processing Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Bottom Ash, a coarse, ... Flue Gas Desulfurization Material, a material leftover from the process of reducing sulfur dioxide emissions from a coal-fired boiler that can be a wet sludge consisting of calcium sulfite or calcium sulfate or a dry powered material that is a mixture of sulfites and sulfates.
Get PriceA process is disclosed for removing sulfur and ash, particularly clay and pyrite from coal particles having a mesh size of 30 or less. A slurry of coal particles is agitated in an ultrasonic mixer to separate the contaminants from the coal and weaken chemically-bonded contaminants on the coal surface. The clay and pyrite particles are dispersed as a colloid in the aqueous medium of the slurry.
Get PriceThe stretching de-ashing in ionic liquids is observed to be a better and effective frequencies in the range of 1070–1030 cm 1 are generally due to process for maximum removal of sulfur and ash from high sulfur the presence of sulfoxide and bands near 1050–1020 cm 1 are sub-bituminous coals with less hazardous to surroundings.
Get PriceFlue-gas desulfurization (FGD) is the removal process of sulfur dioxide (SO 2) from flue gas emissions, often chemically.Sulfur dioxide in gases is produced by the combustion of fossil fuels and many industrial processes such as gasoline refining as well as cement, paper, glass, steel, iron and copper production.
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Get PriceA method is provided for removal of sulfur gases and recovery of elemental sulfur from sulfur gas containing supply streams, such as syngas or coal gas, by contacting the supply stream with a catalyst, that is either an activated carbon or an oxide based catalyst, and an oxidant, such as sulfur dioxide, in a reaction medium such as molten ...
Get PriceThe combination gravity and flotation methods demonstrate the technical feasibility of processing fine size coal to effectively remove sulfur and ash to recover high quality clean coal products which meet or exceed specifications for commercial grade coal as regards to Btu value, and ash and sulfur content.
[PDF]Get PriceTherefore, the combination of flotation and leaching together could increase the percentages of ash and total sulfur removal to 61% and 47%, respectively. 4. Conclusions. Ash and sulfur removal from bitumen using flotation and leaching by sulfuric acid was investigated.
Get PriceRemoval of SO2 from flue gas by the absorbent prepared from coal fly ash, calcium oxide, and calcium sulfate was studied under different reaction conditions to elucidate the effects of the reaction temperature, water vapor pressure, and coexistence of NO in a flue gas. The SO2 removal activity increased with an increase in NO concentration up to 500 ppm at 130 °C.
[PDF]Get PriceThe % removal of total sulfur and ash under optimum conditions for high sulfur lignite coals I and II is shown in Table 9. A reasonable amount of sulfur and ash was removed using optimum set of process parameters. However, a 10% difference in sulfur as well as ash removal .
Get PriceSodium sorbent injection offers effici ent removal of sulfur gases including SO 3 and is ... of the fly ash in typical pozzolanic applic ations such as concrete production. Research is currently under way to determi ne the impact of sodium-based reagents on the characteristics and performance of the resulting fly ash. EXPERIMENTAL
[PDF]Get PricePyritic sulfur removal was achieved at higher percentage than organic sulfur, but it could be said that the degree of degradation depends on the nature and composition of coal because of the closeness of sulfur removal percentage of pyritic and organic sulfur in Hazro coal sample. The removal of ash was around 27 % at the highest alkali to coal ...
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Get PriceFlue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO 2) from exhaust flue gases of fossil-fuel power plants, and from the emissions of other sulfur oxide emitting processes (e.g trash incineration
Get PriceSome high-sulfur lignites were extracted with aqueous alkaline solution obtained from the water-soluble fraction of tea waste ash. High-sulfur removal from lignites was possible by this method. The effects of temperature, the amount of tea waste ash used, extraction time, and stirring speed were ...
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Get PriceSep 01, 2014 · Read "Simultaneous ash and sulfur removal from bitumen: Experiments and neural network modeling, Fuel Processing Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
