Nitrile removal in an etherification process

Details Nitrile removal in an etherification process Nitrile removal in an etherification process

1997-05-20

1998-12-08

Geist, Gary

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

Organic compounds

Oxygen containing

569694, C07C 4100

Patent

active

058472304

ABSTRACT:
In an etherification process that uses an FCC effluent as a source of isoolefins, the buildup of nitrites in an alcohol-containing stream that is recycled to the etherification zone is prevented by dragging at least a portion of a water-containing stream produced by a water washing of the FCC effluent and returning the water-containing stream to the FCC gas concentration zone. As a result, the etherification catalyst deactivation rate is reduced and without increasing the net amount of fresh water employed by the process combination.

REFERENCES:
patent: 4831206 (1989-05-01), Zarchy
patent: 5120881 (1992-06-01), Rosenfeld et al.
patent: 5260493 (1993-11-01), Harandi et al.
patent: 5271835 (1993-12-01), Gorawara et al.
patent: 5352848 (1994-10-01), Cottrell
patent: 5569790 (1996-10-01), Frey et al.

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