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. 30, 1998
Filed:
Dec. 06, 1994
Timo Hyppanen, Karhula, FI;
Foster Wheeler Energia OY, Helsinki, FI;
Abstract
A method and apparatus for recovering heat from solid particles in a fluidized bed reactor, utilize a heat transfer chamber, having heat transfer surfaces disposed therein. Hot solid particles are continuously fed into the heat transfer chamber and gas is introduced into and discharged from the heat transfer chamber. Gas is introduced into the heat transfer chamber for controlling the flow of solid particles therein. The heat transfer chamber is divided into at least one heat transfer zone and at least one solid particle transport zone, by providing more heat transfer surfaces in the heat transfer zones (e.g. 90% or more of the total heat transfer area) than in the solid particle transport zones. The heat transfer is controlled by introducing separately controlled flows of gas into the heat transfer zones and the solid particle transport zones.