초록 ▼

There is provided a zeolite bound zeolite catalyst which does not contain significant amounts of non-zeolitic binder and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The catalyst comprises first zeolite, crystals, a binder comprising second zeolite crystals and

There is provided a zeolite bound zeolite catalyst which does not contain significant amounts of non-zeolitic binder and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The catalyst comprises first zeolite, crystals, a binder comprising second zeolite crystals and a hydrogenation/dehydrogenation metal. The zeolite bound zeolite catalyst is prepared by converting the silica binder of a silica bound aggregate containing the first crystals of said first zeolite and at least a portion of the hydrogenation/dehydrogenation metal to said second zeolite. The zeolite bound zeolite catalyst has excellent performance when used in hydrocarbon conversion processes such as naphtha reforming and xylenes isomerization/ethylbenzene conversion.

대표청구항 ▼

[ What is claimed is:] [1.] A zeolite bound zeolite hydrocarbon conversion catalyst which does not contain significant amounts of non-zeolitic binder and contains at least one hydrogenation/dehydrogenation metal and comprises:(a) first crystals of a first zeolite, and(b) a binder comprising second c

[ What is claimed is:] [1.] A zeolite bound zeolite hydrocarbon conversion catalyst which does not contain significant amounts of non-zeolitic binder and contains at least one hydrogenation/dehydrogenation metal and comprises:(a) first crystals of a first zeolite, and(b) a binder comprising second crystals of a second zeolite; and(c) an effective amount of at least one hydrogenation/dehydrogenation metal: rein said zeolite bound zeolite catalyst is prepared by (i) providing said first crystals of said first zeolite; (ii) forming a silica bound aggregate comprising at least a portion of said at least one hydrogenation/dehydrogenation metal and said first crystals of said first zeolite; and (iii) converting to said second zeolite the silica binder of said silica bound aggregate, wherein said portion of said at least one hydrogenation/dehydrogenation metal is added during the preparation of said zeolite bound zeolite hydrocarbon conversion catalyst after step (i).