초록 ▼

Hydrodesulfurization of cracked naphtha, with minimum attendant hydrogenation of olefins, is effected over a sulfided catalyst bearing (i) a non-noble Group VIII metal, and (ii) a Group VI-B metal, and (iii) a metal of Group I-A, and optionally (iv) a metal of Group II-A, on a support comprising hyd

Hydrodesulfurization of cracked naphtha, with minimum attendant hydrogenation of olefins, is effected over a sulfided catalyst bearing (i) a non-noble Group VIII metal, and (ii) a Group VI-B metal, and (iii) a metal of Group I-A, and optionally (iv) a metal of Group II-A, on a support comprising hydrotalcite-like composition, optionally containing less than or equal to 20% by weight of an inert inorganic compound selected from the group consisting of silica, silica-alumina, titania, clays, carbon black, and mixtures thereof, used as a binder.

대표청구항 ▼

[ What is claimed:] [1.] A process for treating a charge fluid catalytic cracked naphtha containing olefin components and undesired sulfur, which comprises:maintaining a bed of sulfided catalyst containing (i) a metal of non-noble Group VIII, and (ii) a metal of Group VI-B, and (iii) one or more met

[ What is claimed:] [1.] A process for treating a charge fluid catalytic cracked naphtha containing olefin components and undesired sulfur, which comprises:maintaining a bed of sulfided catalyst containing (i) a metal of non-noble Group VIII, and (ii) a metal of Group VI-B, and (iii) one or more metals of intentionally added Group I-A, and (iv) optionally one or more metals of intentionally added Group II-A, on a support consisting essentially of a hydrotalcite-like composition;passing the charge cracked naphtha containing olefinic components and undesired sulfur into contact with said catalyst in the presence of a gas selected from pure hydrogen and a gas mixture comprising greater than 60% by volume hydrogen;maintaining said charge cracked naphtha containing olefinic components and undesired sulfur in contact with said catalyst at hydrodesulfurizing conditions thereby effecting hydrodesulfurization of said charge cracked naphtha containing olefinic components and undesired sulfur and forming a product stream of desulfurized naphtha containing a decreased content of sulfur and retaining at least 50% of the olefin content of the charge cracked naphtha; andrecovering said product stream of cracked naphtha containing a decreased content of sulfur;said hydrotalcite-like composition having the formula: EQU [X.sub.a Y.sub.b (OH).sub.c ].sub.n [A].sub.d.e.H.sub.2 Owherea=1-10b=1-102(a+b)=4-40A is an anion of formal negative charge nn=an integer 1-4d is the formal positive charge of [X.sub.a Y.sub.b (OH).sub.c ]e=1-10X is a divalent metalY is a trivalent metal of Group III or Group VI-B or non-noble Group VIII of the Periodic Table, ject to the qualification that when one of d or n is an integral multiple of the other, they are both reduced to the lowest integral terms.