Process for upgrading olefinic gasolines by etherification

Details Process for upgrading olefinic gasolines by etherification Process for upgrading olefinic gasolines by etherification

1985-06-18

1987-05-12

Lander, Ferris H.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 53, 44 56, 568697, 568699, C10L 110

Patent

active

046646752

ABSTRACT:
The invention concerns a process for upgrading olefinic gasolines containing C.sub.5 hydrocarbons, but free of C.sub.4 hydrocarbons, by etherification. It is characterized in that the tertiary olefins of the charge are reacted (1 and 2) with methanol; the reaction effluent being then extracted (3) with water, in order to separate an aqueous phase containing the major part of the unreacted methanol from a hydrocarbon phase containing the major part of the formed ethers. The aqueous phase is then introduced in a distillation zone (4) where water is separated from methanol and recycled to the extraction zone (3), whereas methanol is recycled to the etherification zone (1 and 2).

REFERENCES:
patent: 3037052 (1962-05-01), Bartnick
patent: 4118425 (1978-10-01), Herbstmann
patent: 4193770 (1980-03-01), Chase et al.
patent: 4204077 (1980-05-01), Woods et al.
patent: 4218569 (1980-08-01), Chase et al.
patent: 4544776 (1985-10-01), Osterburg et al.

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