发明申请
US20220062873A1 METHOD FOR REJUVENATING A NONREGENERATED SPENT CATALYST FROM A PROCESS FOR THE HYDRODESULFURIZATION OF GASOLINES
有权
基本信息:
- 专利标题： METHOD FOR REJUVENATING A NONREGENERATED SPENT CATALYST FROM A PROCESS FOR THE HYDRODESULFURIZATION OF GASOLINES
- 申请号：US17415059 申请日：2019-12-10
- 公开(公告)号：US20220062873A1 公开(公告)日：2022-03-03
- 发明人： Elodie DEVERS , Etienne GIRARD , Philibert LEFLAIVE
- 申请人： IFP Energies Nouvelles
- 申请人地址： FR Rueil-Malmaison Cedex
- 专利权人： IFP Energies Nouvelles
- 当前专利权人： IFP Energies Nouvelles
- 当前专利权人地址： FR Rueil-Malmaison Cedex
- 优先权： FR1873235 20181218
- 国际申请： PCT/EP2019/084440 WO 20191210
- 主分类号： B01J23/94
- IPC分类号： B01J23/94 ; B01J23/00 ; B01J23/882 ; B01J27/19 ; B01J27/28 ; B01J37/02 ; B01J37/20 ; B01J38/12 ; B01J38/62 ; B01J35/10 ; C10G45/08
摘要：
The invention relates to a process for the rejuvenation of an at least partially spent catalyst resulting from a hydrotreating process, said at least partially spent catalyst resulting from a fresh catalyst comprising a metal from group VIII, a metal from group VIb, an oxide support, and optionally phosphorus, said at least partially spent catalyst additionally comprising carbon in a content of between 2% and 20% by weight, with respect to the total weight of the at least partially spent catalyst, and sulfur in a content of between 1% and 8% by weight, with respect to the total weight of the at least partially spent catalyst, said process comprising the following stages: a) said spent catalyst is brought into contact with an impregnation solution containing a compound comprising a metal from group VIb, b) a drying stage is carried out at a temperature of less than 200° C.