Method of making substantially nonporous substrate supported noble metal- and lanthanide-containing catalysts

摘要

Aspects of the invention relate to hydrogenation catalysts, and hydrogenation processes using these catalysts, having particular characteristics, in terms of the amount and type of metal hydrogenation component (or catalytic constituent), as well as the support or substrate. The catalyst compositions, comprising both a noble metal and a lanthanide element on a substantially non-porous substrate, provide advantageous performance characteristics, including conversion, selectivity, and activity stability, as demanded in industrial hydrogenation and selective hydrogenation applications.

主权项

1. A method for preparing a catalyst comprising a noble metal and a lanthanide element deposited on a support comprising a substantially non-porous substrate having a surface area, as measured by S.A.N2-BET or S.A.Kr-BET, from about 0.01 to about 10 m2/g, wherein said method comprises:
(a) contacting fibers of the substantially non-porous substrate with an acid to provide an acid-leached substrate; (b) ion exchanging the acid-leached substrate with one or more ion exchange solutions comprising ions of the noble metal and ions of the lanthanide element to provide an ion-exchanged substrate having the noble metal and lanthanide element deposited thereon; and (c) treating said ion-exchanged substrate with a treatment selected from the group consisting of pH adjusting, calcining, oxidizing, reducing, sulfiding, carbiding, nitriding, phosphiding and boriding.