Abstract
The paper presents the results of a study of Pt and Pd catalysts deposited on porous aluminum oxide in the reaction of hydrogen oxidation reaction for use the process of helium concentrate purification. The properties of the prepared catalysts were compared with the properties of a foreign reference catalyst. In a laboratory reactor using a mixture simulating helium concentrate, we studied the “ignition” and deactivation of catalysts at room temperature, which simulates the conditions at the inlet section of an industrial adiabatic reactor. The properties of catalysts were also studied at temperatures of 200, 250 and 300 °C under conditions simulating the middle part and the outlet of an industrial reactor. The secondary process of hydrogen formation at 250-300 °C was studied, which is explained by methane and ethane steam reforming which present in the model mixture simulating helium concentrate. The results of the work can be used in the development of domestic catalysts for the purification of helium obtained from natural gas.
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