Catalyst АОК-78-59


Catalytic oxidation of hydrogen sulfide (Claus process)

Product Type

Alumina catalyst is applied as base catalyst to remove hydrogen sulfide from natural and industrial tail gases in refineries and gas plants, petrochemicals and metal manufacturing. More than 20 years of commercial experience.

Catalyst АОК-78-59 is available in spheres with average diameter 5 mm.


Catalyst АОК-78-59 is applied as the fixed bed at Claus sulfur recovery units (SRU). The alumina catalyst can be loaded into all SRU compartments.

Engineering Services

SRU Performance analysis Calculation of H2S conversion rate for thermal and catalytic stages Providing recommendations on optimal plant operating conditions Tailoring optimal catalyst loading Investigation on physico-chemical and catalytic performance of the fresh and spent catalysts Supervision of catalyst loading SRU operation lifetime monitoring
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