Patent ID: 6210563
Filing Date: 2001-04-03
Classification: C10G

Abstract:
A process for selectively producing diesel fuels with increased cetane numbers from a hydrocarbon feed comprising contacting said feed under superatmospheric hydrogen conditions with a catalyst composition comprisinga) a large pore crystalline molecular sieve material component having a faujasite structure and an alpha acidity of less than 1, andb) a group VIII noble metal component,wherein the feed contains at least 50 wt. % naphthenes and less than 40 wt. % aromatics, and wherein said feed is contacted with said catalyst at a pressure ranging from about 400 psi to about 1000 psi, a temperature ranging from about 550.degree. F. to about 700.degree. F. a space velocity ranging from about 0.1 LHSV to about 10 LHSV, and a hydrogen circulation rate of about 1300 SCF/bbl to about 5600 SCF/bbl.