Title:
【発明の名称】改質触媒を保護するために硫黄を極限まで除去する方法
Document Type and Number:
Japanese Patent JP3315120
Kind Code:
B2
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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Inventors:
Haltermann, Dennis El.
Brown, Warren Yi.
Brown, Warren Yi.
Application Number:
JP51089893A
Publication Date:
August 19, 2002
Filing Date:
November 05, 1992
Export Citation:
Assignee:
Chevron Research and Technology Company
International Classes:
B01J20/10; B01J23/40; C07B61/00; C07C5/41; C07C15/02; C10G25/00; C10G35/06; C10G45/06; C10G45/10; C10G61/06; C10G67/06; C10G69/08; (IPC1-7): C10G61/06; C10G67/06; C10G69/08
Domestic Patent References:
| JP4731284A | ||||
| JP1268790A |
Other References:
【文献】米国特許4446005(US,A)
Attorney, Agent or Firm:
Akira Asamura (3 outside)