Patent ID: 6623625
Filing Date: 2003-09-23
Classification: B01J,C07C,C10G,Y10S

Abstract:
A naphthene ring opening catalyst comprising a Group VIII metal selected from Ir, Pt, Pd, Rh, Ru, and combinations thereof, in an amount effective to ring open a naphthene ring of a naphthene ring-containing compound, the metal being supported on a substrate comprising at least one of Cu, Ag, Au, Zn, Ge, Sn, Pb, and combinations thereof in an amount effective to moderate cracking of a naphthene ring-containing feed to form methane, wherein said substrate also contains an effective amount of at least one modifier selected from the group consisting of Cs, Mg, Ca, and Ba effective for improving selectivity to increased linear paraffin functionality from naphthene ring-containing compounds and reduce isomerization of linear paraffins to branched paraffins.