C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 45/02 (2006.01) C10G 45/08 (2006.01) C10G 45/12 (2006.01) C10G 65/04 (2006.01)
Patent
CA 2593062
A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically-bound sulfur and olefins. The olefinic naphtha stream is selectively desulfurized in a hydrodesulfurization reaction stage. The hydrodesulfurized effluent stream is conducted to an interstage stripping zone and separated into a stripper lower boiling stream and a stripper higher boiling stream and the stripper higher boiling stream is further processed in a mercaptan destruction reaction stage to reduce the content of mercaptan sulfur in the final product.
L~invention concerne un procédé d~hydrodésulfuration sélective de flux naphta oléfiniques contenant une quantité substantielle de soufre lié organiquement et d~oléfines. Le flux naphta oléfinique est désulfuré de manière sélective lors d~une étape de réaction d~hydrodésulfuration. Le flux drainant hydrodésulfuré est conduit vers une zone de rectification intermédiaire et séparé en des flux d'ébullition inférieur et supérieur du strippeur, le flux d~ébullition supérieur étant en outre traité lors d~une étape réactionnelle de destruction du thiol afin de réduire la teneur en soufre du thiol du produit final.
Ariyapadi Murali V.
Ellis Edward S.
Greeley John P.
Patel Vasant
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
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