Characteristics and catalytic activity of platinum reforming catalysts based on aluminum oxide modified by organic acids

Resumo

The effect of treating aluminum oxide with organic acids (acetic acid, oxalic acid) on the dispersity, composition, and catalytic properties of the platinum sites of reforming catalysts is investigated. It is established that due to the high number of support defects, a Pt/О_х-Al₂O₃ sample prepared on the basis of aluminum oxide treated with oxalic acid solution has the the highest activity. The role the acid modification of a support plays in the formation of charged atoms of platinum, resulting in an increase of catalytic activity, is established.