Process and device for catalytic dehydrogenation of a C.sub.2+ p

Details Process and device for catalytic dehydrogenation of a C.sub.2+ p Process and device for catalytic dehydrogenation of a C.sub.2+ p

1993-11-08

1996-02-06

Achutamurthy, Ponnathapura

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By dehydrogenation

585324, 585654, C07C 5333

Patent

active

054897254

ABSTRACT:
A process and a device for the catalytic dehydrogenation of a C.sub.2+ paraffinic hydrocarbon charge is applicable to the synthesis of methyl tert-butyl ether. Effluent coming from the dehydrogenation reactor and containing olefins and water is cooled in at least one heat exchanger (41), saturated with water in a column (3) and sent to a stripping column (10) where it is at least partly put in contact with a recycled aqueous liquid phase containing a solvent, preferably methanol. The compressed gaseous effluent in which the water is thereby inhibited from freezing by the methanol is cooled in a heat exchanger (13) then separated in separator (8) into olefins and into hydrogen. An aqueous liquid phase with methanol is decanted at (8) and recycled in column (10).

REFERENCES:
patent: 4381417 (1983-04-01), Vora et al.
patent: 4663493 (1987-05-01), Vora et al.
patent: 4695662 (1987-09-01), Vora
patent: 5214225 (1993-05-01), Hall et al.

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