Etherification process

Details Etherification process Etherification process

2006-11-28

2006-11-28

Keys, Rosalynd (Department: 1621)

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

Organic compounds

Oxygen containing

C568S699000

Reexamination Certificate

active

07141705

ABSTRACT:
A process for the etherification of C4, C5and/or C6tertiary olefins in a hydrocarbon feed with at least one C1to C6alcohol, preferably C1–C4alcohols in a distillation column reactor, preferably where C4's and C5's ethers are co-produced, in which the amount of alcohol employed in the etherification is below that which will produce an azeotrope with hydrocarbons in the overheads from the distillation column reactor. The azeotrope results from the presence of unreacted alcohol in the reaction system in the distillation column reactor. The amount of alcohol is less than the stoichiometric amount, preferably less than 90%, more preferably 10 to 80%, of the stoichiometric amount and the overheads contain less than a stoichiometric of alcohol.

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H. Scheeline and S. Terada, Methyl Tertiary Butyl Ether, Process Economics Reviews, SRI International, Menlo Prk, California.

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