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:
Oct. 15, 2013
Filed:
Feb. 14, 2011
Hideki Ono, Tokyo, JP;
Yoshiyuki Nagayasu, Tokyo, JP;
Kazuaki Hayasaka, Tokyo, JP;
JX Nippon Oil & Energy Corporation, Tokyo, JP;
Abstract
A method for producing a regenerated Fischer-Tropsch synthesis catalyst obtained by regenerating a spent catalyst used in a Fischer-Tropsch synthesis reaction, comprising a steaming step of bringing the above spent catalyst into contact with a mixed gas comprising 1 to 30% by volume of steam and an inert gas at a pressure of atmospheric pressure to 5 MPa and a temperature of 150 to 350° C., the above spent catalyst being a spent catalyst in which cobalt and/or ruthenium is supported on a carrier comprising silica with an average pore diameter measured by a nitrogen adsorption method of 4 to 25 nm, and of which activity represented by an initial carbon monoxide conversion is 40 to 95%, based on the activity of a corresponding unused catalyst.