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. 22, 2015
Filed:
Nov. 15, 2012
General Electric Company, Schenectady, NY (US);
Mae Alane Plummer, Humble, TX (US);
Anindra Mazumdar, Katy, TX (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method includes monitoring a pressure of a gasification system after gasifier shutdown via a pressure sensor, wherein the gasification system includes a gas treatment system and a gasifier configured to output syngas to the gas treatment system during gasification. In addition, the method includes depressurizing the gasification system after gasifier shutdown by opening a flare valve to release gas from the gasifier and the gas treatment system to an atmosphere. The method also includes pressurizing the gasification system after gasifier shutdown, when the monitored pressure reaches a lower pressure threshold, by establishing multiple purge flows of inert gas into the gasification system to remove residual gas from the gasification system. The multiple purge flows are established at different times and at different locations within the gasification system relative to each other.