Process for the obtainment of a light paraffin isomerization cat

Details Process for the obtainment of a light paraffin isomerization cat Process for the obtainment of a light paraffin isomerization cat

1991-08-08

1993-11-23

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By isomerization

585750, 585751, C07C 513

Patent

active

052646483

ABSTRACT:
The invention refers to a process for the obtainment of a catalyst useful in the isomerization of light paraffins, fundamentally based on acid treatment of a synthetic mordenite at temperatures between 40.degree. and 100.degree. C. followed by treatment with steam-air at temperatures between 300.degree. and 600.degree. C. which make it possible to optimize the SiO.sub.2 /Al.sub.2 O.sub.3 framework ratio and the amount of extraframework aluminum of the zeolite. The mordenite thus obtained is mixed with an inorganic refractory oxide such as Al.sub.2 O.sub.3 and a metal of group VIII, basically Pt, is added in an amount between 0.1 and 0.5% by weight referred to the final catalyst.
The catalyst has been tested in the isomerization of light refinery fractions (C.sub.5 and C.sub.6) and has a high activity and selectivity of branched isomers with a low production of gases and a high octane number for the light gasoline obtained.

REFERENCES:
patent: 4835129 (1989-05-01), Travers et al.
patent: 4935578 (1990-06-01), Dufresne et al.
patent: 4954243 (1990-09-01), Kuehl et al.
patent: 5057471 (1991-10-01), Munoz et al.
patent: 5073668 (1991-12-01), Hertzenberg et al.

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