Feed pretreating

Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...

Reexamination Certificate

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Reexamination Certificate

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10900617

ABSTRACT:
This invention provides for a process for hydrocarbon conversion in which a partially dehydrated hydrocarbon feedstock is contacted with at least two different molecular sieve materials, including a first molecular sieve having a Si/Al molar ratio of less than about 5 and a second molecular sieve having a Si/Al molar ratio of greater than about 5. Also, this invention includes such processes in which such feedstocks are contacted with a first molecular sieve having pores of at least about 6 Angstroms and a second molecular sieve having pores of less than about 6 Angstroms.

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UOP Sales Brochure, “The Most Efficient Adsorbents”, Jan. 1990, 15 pages.
Absract of WO 01/07383, filed Feb. 1, 2001, Uhr et al.
Absract of WO 2006/032400, filed Mar. 30, 2006, Henn et al.

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