Exxon Chemical Patents, Inc.

Exxon Research and Engineering Company

Mafer E Tunison

David E Vaughan

David A Young

Roy L Pruett

William E Winter, Jr

David W Staubs

There are disclosed catalysts and process for oligomerizing C.sub.3 -C.sub.12 olefins in the liquid phase at 50.degree. C.-150.degree. C. in the presence of a nickel containing zeolite catalyst, the zeolite being a Cs or Ba exchanged CSZ-1, high silica ultra-stable faujasite and zeolites isostructural with mazzite.

Catalysts and process for oligomerization of olefins with

A hydrocracking process is provided in which the heavy bottoms fraction recovered from the hydrocracked product is heat treated prior to being recycled to the hydrocracking zone. The resulting hydrocracked product has an increased amount of constituents boiling in the middle distillate range.

Hydrocarbon hydrocracking process

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Baton Rouge, LA, United States of America

Mafer E Tunison