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Claus process (Oxidation of hydrogen sulfide)

Claus process traditionally applied for industrial gases hydrogen sulfide removal at refineries and gas processing plants, formed as a result of hydrotreating and hydrocracking processes of various hydrocarbon fractions. The process enables processing considerable volume of acid gases for elemental sulfur recovery, which is a marketable product and can be transported to the place of consumption.

Claus process involves two stages:
1 stage (thermal) 2H2S + 3 O2 = 2 SO2 + 2 H2O
2 stage (catalytic) 2H2S + SO2 = 3 S + 2 H2O

Applying Claus process for sulfur removal ensures removal efficiency up to 96% for industrial tail gas treatment.

SKTB Katalizator manufactures all types of Claus catalysts including titania-, alumina-based catalysts, support layer catalysts and oxygen scavengers.

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Technologies and Materials

Catalyst АОК-75-46 Catalyst АОК-75-33 Catalyst АОК-78-61 Catalyst АОК-78-59
Advantages
Competitive high catalytic activity compared to world counterparts High stability in a reaction medium containing water vapor Improved porous structure ensures long service life High crush strength Selection of the optimal catalytic system Claus catalysts are designed and manufactured in Russia Catalyst in-house production
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