The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2003
Filed:
Feb. 08, 2001
Applicant:
Inventors:
Mitchell E. Loescher, Houston, TX (US);
Gary G. Podrebarac, Houston, TX (US);
Purvis K. Ho, Houston, TX (US);
Assignee:
Catalytic Distillation Technologies, Pasadema, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/702 ; B01J 3/100 ; B01J 2/4047 ; B01J 2/7051 ; B01J 2/7049 ;
U.S. Cl.
CPC ...
B01J 2/702 ; B01J 3/100 ; B01J 2/4047 ; B01J 2/7051 ; B01J 2/7049 ;
Abstract
A process for the sulfiding of a hydrodesulfurization catalyst for example in a distillation column reactor. The catalyst in the distillation column reactor is first dried using nitrogen and the reactor is filled with a sulfiding solvent and circulation begun. The reactor is heated to a temperature above the decomposition temperature of the sulfiding agent to be used and the sulfiding agent charged to the reactor. When sulfiding agent breakthrough is noted in the overheads the temperature is raised and held until sulfiding is complete.