Catalytic reforming process

摘要

Process for catalytic reforming with the aid of catalysts containing a support, platinum and rhenium, performed in a number of successive catalyst beds in which the catalyst employed in the first catalyst bed has an Re/Pt ratio higher than the Re/Pt ratio of the catalyst employed in the last catalyst bed, the said catalyst in the said last catalyst bed containing at least 0.005 % of rhenium in relation to the support. The catalysts preferably contain at least one halogen in a weight proportion in relation to the support of 0.1 to 15 % and the support is preferably alumina-based. In a preferred form 3 successive catalyst beds are employed, the Re/Pt ratios being overall decreasing from the first bed to the last bed.