摘要:
Processes for the disproportionation and isomerization of a C5 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.
摘要:
Processes for the disproportionation and isomerization of a C5 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.
摘要:
Processes for the disproportionation and isomerization of a hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below the decomposition temperature of the ionic liquid, typically below about 250° C. The process includes isomerizing a hydrocarbon feed comprising normal C6 alkane or branched C6 alkane by contacting the hydrocarbon feed with a liquid catalyst in a reaction zone to form a product mixture. Isomerization reaction mixtures are also described.
摘要:
Processes for the disproportionation and isomerization of a C7 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.
摘要:
A method for regenerating deactivated acidic ionic liquid catalyst containing conjunct polymer is described. The method includes contacting the deactivated acidic ionic liquid catalyst containing the conjunct polymer with at least one Brønsted acid in a regeneration zone under regeneration conditions, resulting in a mixture comprising regenerated acidic ionic liquid catalyst, the Brønsted acid, the released conjunct polymer. The Brønsted acid is derived from a mineral acid and contains at least one organic group. The released conjunct polymer can be separated from the regenerated acidic ionic liquid catalyst and the at least one Brønsted acid.
摘要:
Processes for the disproportionation and isomerization of a C5 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a halocarbon carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.
摘要:
A flexible process for gasoline refineries is described. The process can vary depending on the available feedstock and the desired products. At one time, the process can involve disproportionating pentanes to a product mixture including isobutane and isohexane. At other times, by switching the feedstock and operating conditions, the process can convert a mixture of C4 and C7 paraffins to a low aromatic blendstock with suitable octane and a vapor pressure lower than butanes. The process can be performed in separate stand-alone units operated at different times, or a single unit can be operated according to one process at one time and according to the other process at another time.
摘要:
An integrated process for gasoline production is described. The process includes introducing a feed comprising n-C5 hydrocarbons into a disproportionation reaction zone in the presence of a disproportionation catalyst to form a disproportionation mixture comprising iso-C4 and C6+ disproportionation products and unreacted n-C5 hydrocarbons. An iso-C4 hydrocarbon stream and an olefin feed are introduced into an alkylation reaction zone in the presence of an alkylation catalyst to produce an alkylation mixture comprising alkylate and unreacted iso-C4 paraffins. The disproportionation mixture and the alkylation mixture are combined, and the combined mixture is separated into at least a stream comprising the alkylate product, an iso-C4 stream, and an unreacted n-C5 hydrocarbon stream. The iso-C4 stream is recycled to the alkylation reaction zone, and the unreacted n-C5 hydrocarbon stream is recycled to the disproportionation reaction zone. The stream comprising the alkylate product is recovered.
摘要:
A reverse disproportionation reaction of two hydrocarbon feeds allows production of a reaction mixture containing products with intermediate carbon numbers. The amount of at least one of the products with intermediate carbon numbers is equal to or greater than the amount formed from disproportionation of the hydrocarbon alone. A reverse disproportionation reaction mixture is also described.
摘要:
Processes for the disproportionation and isomerization of a C5 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.