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:
Mar. 14, 2000
Filed:
Feb. 11, 1998
Applicant:
Inventors:
Jean-Paul Dessapt, Beynes, FR;
Pierre Marache, Rueil Malmaison, FR;
Alain Forestiere, Vernaison, FR;
Assignee:
Insitut Francais du Petrole, Rueil-Malmaison Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
208152 ; 203 29 ; 203D / ; 422191 ; 422219 ; 585922 ; 585923 ;
Abstract
The catalyst inside a catalytic reaction column is replaced while running the catalytic reaction by diverting a basically monophase fluid to keep it from passing through the catalyst, evacuating from the column the catalyst that has lost at least a portion of its properties, introducing into the column a quantity of catalyst that is approximately equal to the quantity of catalyst that was evacuated from the column, and restoring the circulation of the basically monophase fluid through the catalyst.