Conversion of alcohols to ether-rich gasoline

Details Conversion of alcohols to ether-rich gasoline Conversion of alcohols to ether-rich gasoline

1990-08-03

1991-08-20

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568697, 568698, 568694, 585324, 585314, 585315, 44446, 44449, C07C 4106

Patent

active

050416901

ABSTRACT:
Methanol or other alcohol is converted to high octane gasoline components by an integrated process wherein crude aqueous alcohol feedstock is extracted with a liquid extractant stream containing C.sub.4 +iso-olefin and reacted to form tertiary-alkyl ethers, such as MTBE. The aqueous raffinate is converted to olefinic hydrocarbons in a MTO catalytic reactor. Propene from the MTO reaction is reacted with water to produce di-isopropyl ether, which may be blended with MTBE and C.sub.6 +MTO hydrocarbons to produce high octane gasoline. Isobutylene and isoamylenes from the MTO reaction can be recovered and recycled as a liquid extractant stream.

REFERENCES:
patent: 4684757 (1987-08-01), Avidan et al.
patent: 4777321 (1988-10-01), Harandi et al.
patent: 4827046 (1989-05-01), Harandi et al.
patent: 4857664 (1989-08-01), Huang et al.

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