Process for the production of polymer gasoline
AssigneePetro-Tex Chemical Corporation
InventorsDonald A. Keyworth, Cecil G. McFarland
Life of this patent
Estimating the term…
Abstract
Conversions of over 80 mole % of n-butenes to oligomers can be obtained with less than 15 mole % C.sub.12 or higher oligomers by passing a predominantly C.sub.4 stream containing at least 40 mole % n-butenes through an acidic cation exchange resin at LHSV 2 to 5 at temperatures in the range of 80.degree. C. to 130.degree. C., in liquid phase by cofeeding from 1 to 5 weight %, based on the C.sub.4 stream, of methyl tertiary butyl ether, secondary butyl methyl ether, toluene or mixtures thereof.
Claims33
A process for producing polymer gasoline comprising contacting a hydrocarbon stream substantially free of isobutene containing at least 40 mole % normal C.sub.4 alkenes, in liquid phase with an acidic cation exchange resin at a temperature in the range of 80.degree. C. to 130.degree. C. at LHSV in the range of 2 to 5 in the presence of 1 to 5 weight %, based on said hydrocarbon stream, of a catalyst modifier of methyl tertiary butyl ether, secondary butyl methyl ether, toluene or mixtures thereof, whereby a product stream is produced comprising oligomers and unreacted material said oligomers being principally dimers of said normal alkenes.
A process for producing polymer gasoline comprising contacting a hydrocarbon stream containing C.sub.4 alkenes, wherein the major amount of said C.sub.4 alkenes is normal alkenes in liquid phase with an acidic cation exchange resin at a temperature in the range of 80.degree. C. to 130.degree. C. at LHSV in the range of 2 to 5 in the presence of 1 to 5 weight %, based on said hydrocarbon stream, of a catalyst modifier of toluene, a mixture of methyl tertiary butyl ether, secondary butyl methyl ether and toluene, a mixture of methyl tertiary butyl ether and toluene or a mixture of secondary butyl methyl ether and toluene, whereby a product stream is produced comprising oligomers and unreacted material said oligomers being principally dimers of said normal alkenes.
Dependencies are inferred from the claim text.