发明授权
US5322615A Method for removing sulfur to ultra low levels for protection of
reforming catalysts
失效
将硫除去至超低水平以保护重整催化剂的方法
- 专利标题: Method for removing sulfur to ultra low levels for protection of reforming catalysts
- 专利标题(中): 将硫除去至超低水平以保护重整催化剂的方法
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申请号: US804600申请日: 1991-12-10
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公开(公告)号: US5322615A公开(公告)日: 1994-06-21
- 发明人: Dennis L. Holtermann , Warren E. Brown
- 申请人: Dennis L. Holtermann , Warren E. Brown
- 申请人地址: CA San Francisco
- 专利权人: Chevron Research and Technology Company
- 当前专利权人: Chevron Research and Technology Company
- 当前专利权人地址: CA San Francisco
- 主分类号: B01J20/10
- IPC分类号: B01J20/10 ; B01J23/40 ; C07B61/00 ; C07C5/41 ; C07C15/02 ; C10G25/00 ; C10G35/06 ; C10G45/06 ; C10G45/10 ; C10G61/06 ; C10G67/06 ; C10G69/08 ; C10G45/00
摘要:
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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