首页|Lignite oxidative desulphurization. Notice 2:effects of process parameters
Lignite oxidative desulphurization. Notice 2:effects of process parameters
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The influence of main characteristics upon conversion directions of the lignite organic part during its oxidation desulphurization was studied. The optimum temperature values, the ratio oxidant:raw material, and time of coal stay in the reaction zone, which provide the maximum degree of sulphur conversion and hydrogen sulphide content in desulphur-ization gases, were calculated. The process implemented under these conditions will decrease environment pollution by sulphur dioxide during further lignite burning at least to 55%–60% and utilize sulphur in coal in the form of desul-phurization gases with hydrogen sulphide content of 7%. Such gases can be reprocessed by the known methods of obtaining sulphur. The effect of the above three factors on the depth and character of the coal organic matter transformation was studied.
LigniteOxidative desulphurizationPyriteSulphur in coalHydrogen sulphide
Volodymyr Gunka、Serhiy Pyshyev
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Institute of Chemistry and Chemical Technologies, Lviv Polytecnic National University, 12 Bandery Str., Lviv 79013, Ukraine