Forbehandling av katalysator

摘要

This invention relates to a pretreatment procedure that reduces the required time to obtain the optimum activity of a Pt/Sn-based catalyst. The pretreatment activation consists of repeated cycles of 1) reduction by H2 at elevated temperatures, 2) alkane dehydrogenation at elevated temperatures, 3) oxidation/regeneration by a O2 containing gas at elevated temperatures.