Process for the catalytic isomerisation of aromatic compounds

Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By isomerization

Reexamination Certificate

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Reexamination Certificate

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07411103

ABSTRACT:
A process for catalytic isomerisation of alkyl aromatic compounds in a hydrocarbon process stream comprising contacting the alkyl aromatic compound-containing hydrocarbon stream under isomerisation conditions with a crystalline zeolite catalyst consisting of individual, primary crystals having an intracrystalline, non-crystallographic mesopore system and a mesopore volume of the zeolite crystals above 0.25.

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patent: 6565826 (2003-05-01), Jacobsen et al.
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patent: WO 00/71255 (2000-11-01), None
patent: WO 01/49607 (2001-07-01), None
N.Y. Chen et al., “Industrial Application of Shape-Selective Catalysis”,Catal. Rev.—Science Engr., vol. 28, pp. 185-264 (1988).
K. Tanabe et al., “Industrial Application of Solid Acid-Base Catalysts”,Applied Catalysis A: General, vol. 181, pp. 399-434 (1999).
C.J.H. Jacobsen et al., “Mesoporous Zeolite Single Crystals,”J. Am. Chem. Soc., vol. 122, pp. 7116-7117 (2000).
http://www.uop.com/techsheets/parex.pdf (Information on Parex™ process). (2003).

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