Abstract
The solubility of palladium chloride complexes with organic ligands in supercritical carbon dioxide (SC-CO2) was measured. The possibility of using SC-CO2 as a working medium for the preparation and regeneration of deposited palladium catalysts was studied. The active catalyst component was deposited from solutions of palladium chloride complexes with organic ligands in SC-CO2. The regeneration of catalysts deactivated during the hydrogenation of acetylene in an ethane-ethylene mixture was also performed in SC-CO2 with varying process conditions. A comparison of the specific surface areas and activities of freshly prepared and regenerated samples showed that the methods suggested were highly competitive compared with the traditional regeneration techniques.
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