C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 45/04 (2006.01) B01J 23/882 (2006.01) B01J 35/00 (2006.01) B01J 35/10 (2006.01) C10G 65/04 (2006.01) B01J 21/04 (2006.01) B01J 23/85 (2006.01)
Patent
CA 2486670
A process for the selective hydrodesulfurization of naphtha streams containing a substantial amount of olefins and organically bound sulfur. The naphtha stream is selectively hydrodesulfurized by passing it through a first reaction zone containing a bed of a first hydrodesulfurization catalyst, then passing the resulting product stream through a second reaction zone containing a bed of a second hydrodesulfurization catalyst, which second hydrodesulfurization catalyst contains a lower level of catalytic metals than the first hydrodesulfurization catalyst.
L'invention concerne un procédé d'hydrodésulfurisation sélective de flux de naphte renfermant une quantité importante d'oléfines et de soufre à liaisons organiques. Le flux de naphte est hydrodésulfurisé de manière sélective par passage à travers une première zone de réaction renfermant un lit d'un premier catalyseur d'hydrodésulfurisation, puis par passage du flux de produit obtenu à travers une seconde zone de réaction renfermant un lit d'un second catalyseur d'hydrodésulfurisation, celui-ci renfermant un taux inférieur de métaux catalytiques par rapport au premier catalyseur d'hydrodésulfurisation.
Brignac Garland Barry
Cook Bruce Randall
Demmin Richard Alan
Ellis Edward Stanley
Greeley John Peter
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
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