Process for the isomerizing dehydration of a primary alcohol feedstock substituted in position 2 by an alkyl group on a catalyst comprising an iron-type zeolite
US10099969B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 22, 2015 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Sep 22, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/65
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Isomerizing dehydration of feedstock containing a primary alcohol substituted in position 2 by an alkyl group in which the feedstock is heated to the reaction temperature by indirect heat exchange then vaporization by mixing with a diluent effluent, the diluted and vaporized feedstock being dehydrated in at least one dehydration reactor operating in gas phase at an inlet temperature comprised between 250 and 375° C., at a pressure comprised between 0.2 MPa and 1 MPa and at a WHSV comprised between 1 and 18 h−1, in the presence of a catalyst comprising a zeolite having at least one series of channels the opening of which is defined by a ring with 8 oxygen atoms (8MR) and a binder, the catalyst being coked beforehand in-situ or ex-situ, so as to produce a dehydration effluent, the latter being treated and separated into a diluent effluent, an alkenes effluent and a heavy hydrocarbons effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.