Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...
Patent
1991-06-21
1992-07-28
McFarlane, Anthony
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
By addition of entire unsaturated molecules, e.g.,...
585530, 502 64, C07C 212
Patent
active
051342430
ABSTRACT:
A process for upgrading olefins employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units.
A new process is provided for catalytic oligomerization of olefin feedstock which comprises contacting the feedstock under catalytic conversion conditions with acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The oligomerization reaction is very selective, especially when conducted at temperature of about 40.degree. to 250.degree. C. Low severity reaction permits excellent conversion of lower olefins at pressure of about 100-13,000 pKa range and moderate space velocity.
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"Low Temperature Oligomerization of Small Olefins on Zeolite H-ZSM-5. An Investigation with High-Resolution Solid-State .sup.13 C--NMR", J. P. van den Berg et al., Journal of Catalysis 80, 130-138 (1983).
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Bhore Nazeer A.
Le Quang N.
Yokomizo Grant H.
McFarlane Anthony
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
Wise L. G.
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