Zeolite/SiC composites and their use in catalysis

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs

Reexamination Certificate

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C502S079000

Reexamination Certificate

active

10345417

ABSTRACT:
The invention relates to a composite formed of a zeolite (such as ZSM-5 zeolite, β-zeolite and silicalite) deposited on a rigid support, wherein the rigid support comprises silicon carbide (SiC) with a specific surface area BET of at least 5 m2/g. Preferably, the support is a β-SiC foam with a specific area of between 10 and 500 m2/g. This composite may be used as a catalyst and/or a catalyst support for chemical reactions in a gas or liquid medium. For example materials of the present invention are useful for example, in connection with cracking, acylation, alkylation and/or isomerization of hydrocarbons.

REFERENCES:
patent: 5895769 (1999-04-01), Lai
patent: 06 182214 (1994-07-01), None
patent: 08057305 (1996-03-01), None
patent: WO 98 06495 (1998-02-01), None
N. Van Der Puil: “Development and Catalytic Testing of Zeolitic Coatings” PhD Thesis Delft University of Technology, Delft, NL May 13, 1997.
G. Wine, J. P. Tessonnier, C. Pham-Huu and M. J. Ledoux: “Beta Zeolite Supported on a Macroscopic Pre-Shaped SiC as a High Performance Catalyst for Liquid-Phase Benzoylation” Chemical Communications, No. 20, Oct. 21, 2002.
Seijger G B F et al: “In Situ Synthesis of Binderless ZSM-5 Zeolitic Coatings on Ceramic Foam Supports” Microporous and Mesoporous Materials Elsevier Science Publishing, New York, US, vol. 39, No. 1-2, Sep. 2000.
Mikkelsen O et al.: “Use of Isotopic Labeling for Mechanistic Studies of the Methanol-to-Hydrocarbons Reaction. Methylantion of Toluene with Methanol Over H-ZSM-5, H-mordenite and H-beta” Microporous and Mesoporous Materials, Elsevier Science Publishing, New York, US, vol. 40, No. 1-3, Nov. 2000.
Van Der Puil N et al: “Preparation and Catalytic Testing of Zeolite Coatings on Preshaped Alumina Supports” Microporous and Mesoporous Materials, Elsevier Science Publishing, New York, US, vol. 27, No. 1, Jan. 1999.
Re Lai et al., “Growth of ZSM-5 Films on Alumina and Other Surfaces”,Microporous and MesoporousMaterials vol. 37, 2000, pp. 9-19.
R. Van Grieken et al., “Anomalous Crystallization Mechanism in the Synthesis of Nanocrystalline ZSM-5”, Microporous and Mesoporous Materials, vol. 39, 2000, pp. 135-147.
Oyvind Mikkelsen et al., “Use of Isotopic Labeling for Mechanistic Studies of the Methanol-to-Hydrocarbons Reaction. Methylation of Toluene with Methanol Over H-ZSM-5, H-Mordenite and H-Beta”, Microporous and Mesoporous Materials, vol. 40, 2000, pp. 95-113.
J. Caro et al., “Zeolite Membranes—State of Their Development and Perspective”, Microporous and Mesoporous Materials, vol. 38, 2000, pp. 3-24.
Claus J.H. Jacobsen et al., “Zeolites by Confined Space Synthesis—Characterization of the Acid Sites in Nanosized ZSM-5 by Ammonia Desorption and27AI/29Si-Mas NMR Spectroscopy”, Microporous and Mesoporous Materials, vol. 39, 2000, pp. 393-401.
M.A. Camblor et al., “Characterization of Nanocrystalline Zeolite Beta”, Microporous and Mesoporous Materials, vol. 25, 1998, pp. 59-74.
T.F. Degnan et al., “History of ZSM-5 Fluid Catalytic Cracking Additive Development at Mobil”, Microporous and Mesoporous Materials, vol. 35-36, 2000, pp. 245-252.
J.S. Buchanan, “The Chemistry of Olefins Production by ZSM-5 Addition to Catalytic Cracking Units”, Catalysis Today, vol. 55, 2000, pp. 207-212.
N. van der Puil et al., “Preparation and Catalytic Testing of Zeolite Coatings on Preshaped Alumina Supports”, Microporous and Mesoporous Materials, vol. 27, 1999, pp. 95-106.
Ahmed K. Aboul-Gheitaet al, “Catalytic Para-Xylene Maximization II—Alkylation of Toluene with Methanol on Platinum Loaded H-ZSM-5 Zeolite Catalysts Prepared Via Different Routes”, Applied Catalysis A: General vol. 179, 1999, pp. 107-115.
J.C. Jansenaet al., “Zeolitic Coatings and Their Potential Use in Catalysis”, Microporous and Mesoporous Materials, vol. 21, 1998, pp. 213-226.
Ahmed K. Aboul-Gheit et al., “CatalyticPara-Xylene Maximization IV. Hydroisomerization ofMeta- Xylene on Catalysts Containing Platinum on Differently Steamed H-ZSM-5”, Applied Catalysis A: General, vol. 209, 2001 pp. 179-191.

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