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:
Sep. 04, 2007
Filed:
Sep. 18, 2002
Nobuyuki Hokari, Hitachinaka, JP;
Tomohiko Miyamoto, Takahagi, JP;
Hirokazu Takahashi, Hitachinaka, JP;
Hiromi Koizumi, Hitachi, JP;
Nobuyuki Hokari, Hitachinaka, JP;
Tomohiko Miyamoto, Takahagi, JP;
Hirokazu Takahashi, Hitachinaka, JP;
Hiromi Koizumi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The reforming of heavy oil with supercritical water or subcritical water is accomplished by mixing together supercriticai water, heavy oil, and oxidizing agent, thereby oxidizing vanadium in heavy oil with the oxidizing agent at the time of treatment with supercritical water and separate vanadium oxide. The separated vanadium oxide is removed by the scavenger after treatment with supercritical water. In this way it is possible to solve the long-standing problem with corrosion of turbine blades by vanadium which arises when heavy oil is used as gas turbine fuel.