Hydrogenation process

A hydrogenation process for reducing the unsaturation of lubricants uses a catalyst which is based on an ultra-large pore crystalline material. The crystalline material has pores of at least 13 ANGSTROM diameter arranged in a uniform manner and exhibits unusually large sorption capacity demonstrated...

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Bibliographische Detailangaben
Hauptverfasser: DOUGHERTY, RICHARD C, SHIH, STUART S, HATZIKOS, GEORGE H, YAN, TSOUNG Y, DEGNAN, THOMAS F
Format: Patent
Sprache:eng
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Zusammenfassung:A hydrogenation process for reducing the unsaturation of lubricants uses a catalyst which is based on an ultra-large pore crystalline material. The crystalline material has pores of at least 13 ANGSTROM diameter arranged in a uniform manner and exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams (50 torr and 25 DEG C.). A preferred form of the catalyst has a hexagonal structure which exhibits a hexagonal electron diffraction pattern that can be indexed with a d100 value greater than about 18 ANGSTROM . The hydrogenation catalysts based on these materials are capable of reducing the unsaturation in poly alpha olefin lubricants to a low level.