Process for regenerating a catalyst for the production of aromatic compounds or for reforming, with improved oxychlorination
US6133183A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1998 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Apr 14, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G35/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a process for regenerating a catalyst for the production of aromatic compounds, in particular for reforming, comprising combustion (A), oxychlorination (B) and calcining (C) steps, in which at least one chlorinating agent (conduit 19), at least one oxygen-containing gas (conduit 18), and water (conduit 20) are introduced into the oxychlorination step such that the H.sub.2 O/HCl molar ratio is 3 to 50, the oxychlorination step being carried out in the presence of an oxychlorination gas containing less than 21% of oxygen and at least 50 ppm by weight of chlorine (based on HCl), and at a temperature of 350-600.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.