Process for selectively converting ethene to isobutylene over selectivated ZSM-35
AssigneeMobil Oil Corporation
InventorsFrank T. DiGuiseppi, Scott Han, Roland H. Heck
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Abstract
The present invention relates to a process for the oligomerization of ethene to a product rich in isobutylene comprising contacting a feedstock comprising ethene under oligomerization conditions with a catalyst composition comprising a porous crystalline silicate having the structure of ZSM-35 zeolite whose surface has been at least partially deactivated for acid catalyzed reactions by a) coking or b) chemisorption of a surface-deactivating agent, e.g., collidine, which possesses an average cross section diameter greater than that of the zeolite pores.
Claims11
A process for the oligomerization of ethene to isobutylene comprising contacting a feedstock comprising ethene under oligomerization conditions with a catalyst composition comprising a ZSM-35 zeolite whose surface has been at least partially deactivated for acid catalyzed reactions by a) coking or b) chemisorption of a surface-deactivating agent which possesses an average cross section diameter greater than that of the zeolite pores.
Dependencies are inferred from the claim text.