Title:
芳香族化合物製造触媒またはリフォーミング触媒の再生のための改良方法および改良装置
Document Type and Number:
Japanese Patent JP4696323
Kind Code:
B2
Abstract:
The process is for the regeneration of a movable catalyst bed for reforming or producing aromatic hydrocarbons. The catalyst coats a support, at least one noble metal and at least one halogen. The process comprises a combustion stage with treatment for the catalyst in at least two successive combustion zones. Each combustion zone is separated from the adjacent zones in such a way as to allow the passage of the catalyst but obstruct the passage of gases. In each zone at least one gas containing oxygen is introduced and the gases produced are extracted from each zone. The severity of the operating conditions in each combustion zone increases in the direction of movement of the catalyst. For the oxychlorination stage, at least one chlorination agent and at least one gas containing oxygen are introduced with water so the molar ratio of water to hydrogen chloride is 1-50. Oxychlorination takes place when the oxychlorination gas contains more than 21% oxygen and at least 50 ppm by weight of chlorine (calculated as HCl) and at a temperature of 350-600 degrees C. Also claimed is the apparatus for the above process.
Inventors:
Marianne capel
Jean Marie Duvet
Frederick Offman
Michelle terry
Francois Xavier Brunet
Emmanuel brome
Jean Marie Duvet
Frederick Offman
Michelle terry
Francois Xavier Brunet
Emmanuel brome
Application Number:
JP10266498A
Publication Date:
June 08, 2011
Filing Date:
April 14, 1998
Export Citation:
Assignee:
IFP ENERGIES NOUVELLES
International Classes:
B01J38/14; B01J38/44; B01J23/96; B01J38/22; C07B61/00; C07C17/152; C10G35/12
Domestic Patent References:
| JP2290259A |
Foreign References:
| US5034117 |
Attorney, Agent or Firm:
Norihiko Hibi
Einosuke Kishimoto
Akira Watanabe
Einosuke Kishimoto
Akira Watanabe