HYDROISOMERIZATION CATALYST MANUFACTURED USING A HIGH NANOPORE VOLUME ALUMINA SUPPORTS

摘要

The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm·g/cc, and a second HNPV alumina having a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm·g/cc. Their combination yields a HNPV base extrudate having a low particle density as compared to a conventional base extrudates.

主权项

1. A hydroisomerization catalyst, comprising:
a base extrudate comprising
at least one molecular sieve selective towards isomerization of n-paraffins,a first alumina having a high nanopore volume and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm·g/cc, anda second alumina having a high nanopore volume and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm·g/cc; the catalyst further comprising at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table.