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1. (WO1998050497) PROCESSES, AND CATALYST FOR UPGRADING WAXY, PARAFFINIC FEEDS

Pub. No.:    WO/1998/050497    International Application No.:    PCT/US1998/008688
Publication Date: Fri Nov 13 00:59:59 CET 1998 International Filing Date: Thu Apr 30 01:59:59 CEST 1998
IPC: B01J 29/06
C10G 45/64
Applicants: EXXON RESEARCH AND ENGINEERING COMPANY
Inventors: WITTENBRINK, Robert, J.
KOVEAL, Russell, J., Jr.
MURPHY, William, J.
CODY, Ian, A.
SCHWEIZER, Albert, E.
Title: PROCESSES, AND CATALYST FOR UPGRADING WAXY, PARAFFINIC FEEDS
Abstract:
An improved catalyst for the production of lube oil blending components, and lube oils, from waxy, paraffinic feeds, a process for producing such catalyst, and a process utilizing this catalyst in the production of lubes. The catalyst is a unitized mixed powder pellet catalyst constituted of a dehydrogenation component, or components, suitably a catalytically active Group VIB, VIIB, or VIII metal, or metals, an isomerization component, suitably an amorphous acidic solid support, and a small pore molecular sieve dewaxing component. The dewaxing component is characterized as a small pore molecular sieve wherein the pore windows are formed by 8 oxide atoms which form the limiting edge of the pore window, each of the oxide atoms constituting one of the four oxide atoms of a tetrahedrally coordinated cluster around a silicon or aluminum framework ion, or atom, each oxide ion is coordinated to two framework ions in these structures, and the pore size of the sieve ranges between about 6.3 Å and 2.3 Å. In preparation of the catalysts, the isomerization component, or the dewaxing component or both, may provide the dehydrogenation function due to the presence of a catalytic metal, or metals, deposited thereon, in which case the components are powdered, the powders mixed together, compressed and formed into solids catalyst shapes comprised of these components. Alternatively, the dehydrogenation function can be added to preformed solids shapes made from powdered dewaxing and isomerization components.