Process for the isomerization of a hydrocarbonaceous feedstock

Details Process for the isomerization of a hydrocarbonaceous feedstock Process for the isomerization of a hydrocarbonaceous feedstock

1994-05-18

1996-02-20

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By skeletal isomerization

502208, 502214, C07C 523

Patent

active

054930669

ABSTRACT:
Process for the preparation of branched olefins comprising contacting a hydrocarbonaceous feedstock comprising linear olefins having at least four carbon atoms at elevated temperature with a catalyst which comprises a MeAPO and/or MeAPSO medium-pore molecular sieve having an anhydrous composition expressed in molar oxide ratios as follows; (MeO).sub.a (Al.sub.2 O.sub.3).sub.b (P.sub.2 O.sub.5).sub.c (SiO.sub.2).sub.d, whereby (a+b)/c is greater than 1.0, a ranges from 0.003 to 0.2, b and c range from 0.05 to 0.3, d is at most 0.4 and a/(c+d) is at least 0.05 when SiO.sub.2 is present, and Me is at least one of Mg, Mn, Co and Zn.

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"Skeletal Rearrangement Reactions of Olefins, Paraffins, and Aromatics over Aluminophosphate-Based Molecular Sieve Catalysts," by R. J. Pellet, P. K. Coughlin, E. S. Shamshoum, and J. A. Rabo, Perspectives in Molecular Sieve Science, Americam Chemical Society, Washington, DC 1988, pp. 512-531.
European Search Report, Sep. 19, 1994.

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