Study of oxidative desulphurization process of coal with different metamorphism degrees

S PYSH'YEV; V GUNKA; Y PRYSIAZHNYI; K SHEVCHUK; A PATTEK-JANCZYK

Volume 40 Issue 02

Feb. 2012

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Article Navigation > Journal of Fuel Chemistry and Technology > 2012 > 40(02): 129-137

S PYSH'YEV, V GUNKA, Y PRYSIAZHNYI, K SHEVCHUK, A PATTEK-JANCZYK. Study of oxidative desulphurization process of coal with different metamorphism degrees[J]. Journal of Fuel Chemistry and Technology, 2012, 40(02): 129-137.

Citation:

S PYSH'YEV, V GUNKA, Y PRYSIAZHNYI, K SHEVCHUK, A PATTEK-JANCZYK. Study of oxidative desulphurization process of coal with different metamorphism degrees[J]. Journal of Fuel Chemistry and Technology, 2012, 40(02): 129-137.

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Study of oxidative desulphurization process of coal with different metamorphism degrees

1.
Institute of Chemistry and Chemical Technology, Lviv Polytecnic National University, St. Bandery 12, 79013 Lviv, Ukraine;
2.
State Higher Vocational School in Tarnó, Mickiewicza 8, 33-100 Tarnó|Poland

Received Date: 2011-06-07
Rev Recd Date: 2011-09-21
Publish Date: 2012-02-29

Abstract

Abstract

The oxidative desulphurization process of coal with different metamorphism degrees treated by an air-steam mixture has been studied. It has been shown that the pyrite present in black coal and anthracite is oxidized with the sulphur dioxide formation, and the process chemical mechanism does not depend on the quality of organic matter. The medium-metamorphized coal, capable of turning into a plastic state and cake in the range of investigated temperatures (350~450 ℃), is desulphurized with the greatest difficulty. The chemical mechanism dealing with the transformations of pyritic sulphur present in brown coal differs from similar processes taking place in black coal and anthracite, because FeS₂ is converted with hydrogen sulphide formation at desulphurization.
- oxidative desulphurization,
- organic matrix,
- pyrite,
- metamorphism degree,
- sulphur

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References(15)

References

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