Ether production with staged reaction of olefins

Details Ether production with staged reaction of olefins Ether production with staged reaction of olefins

1990-08-22

1992-02-25

Mars, Howard T.

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

Organic compounds

Oxygen containing

C07C 4105

Patent

active

050915908

ABSTRACT:
A process for upgrading olefin feedstock containing a mixture of iso-olefin and linear olefin to produce tertiary-alkyl ether and high octane gasoline components comprising dimerized iso-olefin. Product recovery is integrated between primary and secondary reaction stages.
In a preferred embodiment, a two stage etherification process employs a secondary solid acid regenerable catalyst bed to dimerize unconverted iso-butene in the debutanizer overhead stream of a conventional MTBE primary reactor stage. Both stages can utilize a regenerable acid catalyst such as ZSM-5 or Zeolite Beta for etherification and to upgrade unconverted alkenes and methanol from the primary stage.

REFERENCES:
patent: 4377393 (1983-03-01), Schleppinghoff
patent: 4830635 (1989-05-01), Harandi et al.

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