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. 23, 2012
Filed:
Mar. 02, 2007
Toshiyuki Suda, Koto-ku, JP;
Yoshiaki Matsuzawa, Koto-ku, JP;
Toshiro Fujimori, Koto-ku, JP;
IHI Corporation, Tokyo, JP;
Abstract
The invention has its object to arbitrarily adjust an amount of particles to be circulated without changing a flow rate of a gasification agent to thereby enhance gasification efficiency in a fluidized bed gasification furnace. The fluidized bed gasification furnacecomprises first and second chambersandin communication with each other in a fluidized bed. The hot particlesseparated in the separatorand raw material M are introduced into the first chamber. The particlesintroduced from the first chamberthrough interior in the fluidized bedto the second chamberare supplied in an overflow manner to the fluidized bed combustion furnace. A first pressure controlleris provided to control the resultant gas induction meanssuch that the pressure in the first chamberis kept to preset pressure; and a second pressure controlleris provided to control the exhaust gas induction meanssuch that difference between pressure in the first and second chambersandis equal to the preset differential pressure, so that the fluidized bedin the first chamberis controlled in height to control an amount of particlesto be circulated.