Catalyst for aromatization of alkanes, process of making and...

Details Catalyst for aromatization of alkanes, process of making and... Catalyst for aromatization of alkanes, process of making and...

2007-03-06

2007-03-06

Dang, Thuan Dinh (Department: 1764)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By ring formation from nonring moiety, e.g., aromatization,...

C585S418000

Reexamination Certificate

active

10792319

ABSTRACT:
A catalyst of a gallium zeolite on which platinum (Pt/Ga-ZSM-5) has been deposited may be used for aromatization of alkanes having two to six carbon atoms per molecule, such as ethane, propane, butane, etc., to aromatics, such as benzene, toluene and xylenes (BTX). The gallium zeolite contains gallium and silicon in the framework of the zeolite structure. The zeolite structure may be of MFI, FAU, TON, MFL, VPI, MEL, AEL, AFI, MWW or MOR, but preferably, the zeolite has a MFI structure, more preferably is ZSM-5 MFI zeolite. According to the IUPAC recommendations, an example of the sodium form of the zeolite would be represented as:in-line-formulae description="In-line Formulae" end="lead"?|Nax·(H2O)z|[GaxSiyO2y+3x/2]−MFIin-line-formulae description="In-line Formulae" end="tail"?where x=0.1–25; y=60–100; and z=0.1–10. Platinum may be deposited on the gallium zeolite by ion exchange or impregnation.

REFERENCES:
patent: 3329480 (1967-07-01), Young
patent: 3329481 (1967-07-01), Young
patent: 4180689 (1979-12-01), Davies et al.
patent: 4208305 (1980-06-01), Kouwenhoven et al.
patent: 4704494 (1987-11-01), Inui
patent: 4713227 (1987-12-01), Derouane et al.
patent: 4766265 (1988-08-01), Desmond et al.
patent: 4851602 (1989-07-01), Harandi et al.
patent: 4891463 (1990-01-01), Chu
patent: 5149679 (1992-09-01), Price et al.
patent: 5192728 (1993-03-01), Dessau et al.
patent: 5456822 (1995-10-01), Marcilly et al.
patent: 5574199 (1996-11-01), Beck et al.
patent: 5693215 (1997-12-01), Zones et al.
patent: 5932777 (1999-08-01), Sughrue, II et al.
patent: 6160191 (2000-12-01), Smith et al.
patent: 59121115 (1984-07-01), None
“Zeolite Molecular Sieves”, D.W. Breck, p. 322, John Wiley & Sons (1974).
NAS (novel aluminosilicates) as catalysts for the aromatisation of propane, Studies of zinc and gallium modified zeolite-based systems having various extents of XRD crystall crystallinity, C. P. Nicolaides et al., Catalysis Today, vol. 71, p. 429-435 (2002).
“Light alkanes aromatization to BTX over Zn-ZSM-5 catalysts, Enhancements in BTX selectivity by means of a second transition metal ion”, Louis M. Lubango et al.

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