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US 7,582,802 B2Granted
Propylene hydroformylation
AssigneeExxonMobil Chemical Patents Inc.
InventorsRaphael Frans Caers, Hubertus Joseph Beckers, Eddy Theophyle Andrea Van Driessche, Luc Roger Marc Martens, John Stephen Godsmark, John Richard Shutt
Life of this patent
Estimating the term…
Abstract
Propylene streams obtained by the conversion of oxygenates to olefins are used as feeds for hydroformylation. The streams may contain measurable amounts of dimethyl ether without adversely impacting the hydroformylation.
Claims14
A method of making a hydroformylated product comprising:
- (i) contacting an oxygenate with a molecular sieve catalyst to form an olefin composition comprising propylene;
- (ii) separating a propylene containing stream from the olefin composition and (iii) contacting said propylene containing stream with a rhodium hydroformylation catalyst and hydroformylating to form a hydroformylation product, wherein said propylene containing stream in steps (ii) and (iii) is characterized as comprising dimethyl ether in the amount of between 250 ppm and 5000 ppm.
Dependencies are inferred from the claim text.