Production of liquid hydrocarbon and ether mixtures

Details Production of liquid hydrocarbon and ether mixtures Production of liquid hydrocarbon and ether mixtures

1987-12-08

1989-05-16

Dixon, Jr., William R.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 53, 44 77, 502159, 568697, 585415, 585639, C10L 102

Patent

active

048306355

ABSTRACT:
An etherification process for reacting a hydrocarbon mixture containing C.sub.4 -C.sub.7 iso-olefins with excess methanol to produce tertiary alkyl methyl ethers. The improved technique comprises operations for separating etherification reaction effluent to recover a liquid fraction rich in gasoline range unreacted hydrocarbons in mixture with liquid ether product, recovering from the reaction effluent a vapor fraction rich in unreacted light olefin including C.sub.4 -C.sub.5 olefins and unreacted methanol, and converting or interconverting a major portion of the light olefin to C.sub.4 + olefins and/or oligomerization products while substantially completely converting the unreacted methanol to an acid zeolite catalysis conversion product comprising olefins and normally liquid hydrocarbon product. A portion of the conversion product is recycled to the etherification process.

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