Method for removing sulfur to ultra low levels for protection of

Details Method for removing sulfur to ultra low levels for protection of Method for removing sulfur to ultra low levels for protection of

1991-12-10

1994-06-21

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208227, C10G 4500, C10G 2500

Patent

active

053226151

ABSTRACT:
Provided is a method for removing residual sulfur from a hydrotreated naphtha feedstock. The process comprises contacting the naphtha feedstock with a first solid sulfur sorbent comprising a metal on a support to thereby form a first effluent. The effluent is then contacted with a sulfur conversion catalyst comprising a Group VIII metal in the presence of hydrogen, with the resulting effluent being contacted with a second solid sulfur sorbent containing a Group IA or IIA metal, to thereby lower the sulfur content of the feedstock to less than 10 ppb, and to as low as 1 ppb or less. The feedstock can then be safely used with highly sulfur sensitive zeolitic reforming catalysts without adversely affecting the useful life of the catalyst.

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patent: 4925549 (1990-05-01), Robinson et al.
patent: 5106484 (1992-04-01), Nadler et al.

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