Reforming catalyst and process

摘要

One exemplary embodiment can be a catalyst for catalytic reforming of naphtha. The catalyst can have a noble metal including one or more of platinum, palladium, rhodium, ruthenium, osmium, and iridium, a lanthanide-series metal including one or more elements of atomic numbers 57-71 of the periodic table, and a support. Generally, an average bulk density of the catalyst is about 0.300-about 0.620 gram per cubic centimeter, and an atomic ratio of the lanthanide-series metal:noble metal is less than about 1.3:1. Moreover, the lanthanide-series metal can be distributed at a concentration of the lanthanide-series metal in a 100 micron surface layer of the catalyst less than about two times a concentration of the lanthanide-series metal at a central core of the catalyst.

主权项

1. A catalyst for catalytic reforming of naphtha, comprising:
A) a noble metal comprising one or more of platinum, palladium, rhodium, ruthenium, osmium, and iridium; B) a lanthanide-series metal comprising one or more elements of atomic numbers 57-71 of the periodic table; and C) a support; wherein an average bulk density of the catalyst is about 0.300-about 0.620 gram per cubic centimeter, an atomic ratio of the lanthanide-series metal:noble metal is less than about 1.3:1, and the lanthanide-series metal is distributed at a concentration of the lanthanide-series metal in a 100 micron surface layer of the catalyst greater than one times but less than or equal to 1.75 times a concentration of the lanthanide-series metal at a central core of the catalyst.