Multiple molecular sieve catalyst for sour service dewaxing

Details Multiple molecular sieve catalyst for sour service dewaxing Multiple molecular sieve catalyst for sour service dewaxing

2008-12-18

2011-10-04

Wood, Elizabeth (Department: 1732)

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

C502S060000, C502S063000, C502S064000, C502S067000, C502S071000

Reexamination Certificate

active

08030240

ABSTRACT:
Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include at least two zeolites, including a zeolite with a low silica to alumina ratio. The catalysts may be combined with a low surface binder, or alternatively the catalysts as formulated may have a high ratio of zeolite surface area to external surface area.

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patent: 2004/046278 (2004-06-01), None
U.S. Appl. No. 12/316,978, commonly owned copending application, filed Dec. 18, 2008.
U.S. Appl. No. 12/316,977, commonly owned copending application, filed Dec. 18, 2008.

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