Patent ID: 7875167
Filing Date: 2011-01-25
Classification: C10G

Abstract:
1. A process for hydrodesulfurizing a naphtha feedstock containing both sulfur and olefins while inhibiting mercaptans formation, comprising: hydrodesulfurizing said naphtha feedstock in a reaction zone, the feedstock having a boiling range from about 65° F. to about 430° F. and containing less than about 500 wppm sulfur and at least about 5 wt. % olefins, based on the total weight of the feedstock, the reaction zone containing an effective amount of a hydrogen-containing treat gas and an effective amount of a hydrodesulfurization catalyst comprised of from about 2.1 to about 2.3 wt. % cobalt, based on CoO, and at least one Group VI metal on a refractory support, wherein the reaction zone is operated at temperatures from about 500° F. to about 650° F., a hydrogen partial pressure of about 50 to about 100 psig, and hydrogen treat gas rate of about 400 to about 2000 scf/b.