Process and device for catalytic dehydrogenation of a C.sub.2+ paraffinic charge comprising means for inhibiting the freezing of water in the effluent
US5489725A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1993 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Nov 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/129
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.