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:
Jun. 28, 2011
Filed:
Dec. 29, 2008
Andrea Tasso, Zelo Buon Persico, IT;
Stefano Rossini, Milan, IT;
Paolo Pollesel, San Donato Milanese, IT;
Andrea Tasso, Zelo Buon Persico, IT;
Stefano Rossini, Milan, IT;
Paolo Pollesel, San Donato Milanese, IT;
ENI S.p.A., Rome, IT;
Institut Francais du Petrole, Rueil Malmaison, FR;
Abstract
Process for maintaining the stability of performances of a catalyst for Fischer-Tropsch reaction, performed in a slurry bubble column reactor under a triphase system which comprises gradually increasing the P/Pratio and the P/Z ratio, during the start-up phase, with Z=·(T/T)·efrom 0.4 to 0.8, for a period of time not shorter than 100-150 hrs and not longer than 200-300 hours and, at the end of the start-up phase, maintaining the P/Pand P/Z ratios substantially equal to or lower than 0.8.