Concurrent isomerization and disproportionation of olefins
AssigneeShell Oil Company
InventorsDavid M. Hamilton, Jr., Richard A. Kemp
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Abstract
This invention relates to a process for the concurrent isomerization and disproportionation of hydrocarbon olefins by contacting said hydrocarbon at disproportionation conditions with a catalyst prepared by incorporating a ferrierite compound and a metals solution containing cobalt and an element selected from the group consisting of molybdenum and tungsten into an alumina hydrogel.
Claims18
A process for the concurrent isomerization and disproportionation of olefinic hydrocarbons having carbon numbers ranging from C.sub.2 to about C.sub.100 which comprises contacting said olefins with a catalyst prepared by incorporating cobalt, a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a ferrierite compound into an alumina hydrogel and subsequently calcining to prepare said catalyst.
A process for the concurrent isomerization and disproportionation of olefinic hydrocarbons having carbon numbers ranging from C.sub.2 to about C.sub.100 which comprises contacting said olefinic hydrocarbons at disproportionation conditions with a catalyst prepared by a process which comprises:
- (a) precipitating an aqueous solution of one or more aluminum salt(s) by adjusting the pH of said solution to a range between about 5.5 and about 10.0 at a temperature in the range between about 20.degree. C. and about 90.degree. C.,
- (b) aging the precipitate at a temperature ranging from about 20.degree. C. to about 90.degree. C. for at least about 15 minutes at a pH ranging from about 8.0 to about 12.0,
- (c) washing the precipitate,
- (d) mixing the precipitate with a ferrierite compound and solubilized salts of cobalt and a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, at a pH in the range between about 4.0 and about 10.0 and a temperature in the range between about 25.degree. C. and about 100.degree. C. until adsorption of the metal salts onto the gel is sufficient to yield a final catalyst having from about 1 percent by weight to about 5 percent by weight cobalt, from about 8 percent by weight to about 32 percent by weight heavy metal, and from about 1 percent by weight to about 35 percent by weight ferrierite,
- (e) extruding the product of step (d), and
- (f) drying and calcining the product of step (e) at a temperature ranging from about 300.degree. C. to about 900.degree. C.
Dependencies are inferred from the claim text.