The invention claimed is:
1. A process for removing sulfur from a sulfur-containing naphtha feed comprising: (1) contacting the
feed with a hydrotreating catalyst under hydrotreating conditions such that at least 50 wt. % of olefins in
the feed are preserved and at least 95 wt. % of the sulfur compounds in the feed are converted to produce
a hydrotreated effluent, (2) contacting the hydrotreated effluent with a mercaptan removal agent to
produce a second effluent containing less than 30 wppm total sulfur, based on second effluent, the
mercaptan removal being at least one of mercaptan extraction, mercaptan removal by depressurization,
mercaptan removal by thermal treatment, physical adsorption, or membrane separation, and (3) contacting
the second effluent with an adsorbent to produce a naphtha product containing less than 10 wppm total
sulfur, based on naphtha product, the adsorbent consisting essentially of at least one reactive metal in a
metallic state on an inorganic support, wherein the at least one reactive metal consists of one or more
elements selected from Groups 1, 2, and 5-12 and wherein the inorganic support consists of one or more
support materials selected from alumina, silica, silica-alumina, magnesia, titania, zirconia, hafnia, carbon,
and a clay.
2. The process of claim 1 wherein the hydrotreating catalyst contains at least one of Ni, Co, Mo or W on
an alumina support.
3. The process of claim 2 wherein the hydrotreating catalyst is a Mo/Co catalyst including a MoO3
concentration of 1 to 10 wt % based on weight of catalyst, a CoO concentration of 0.1 to 5 wt %, and a
Co/Mo atomic ratio of about 0.1 to 1.0.
4. The process of claim 1 wherein the hydrotreating conditions in step (1) include temperatures of from
200 to 425° C., pressures of from 525 to 5617 kPa, liquid hourly space velocities of from 0.1 to 15 hr−1,
and hydrogen feed rates of from 178 to 1068 m3/m3.
5. The process of claim 1 wherein the second hydrotreating step includes second hydrotreating conditions.