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:
Aug. 06, 2013
Filed:
Mar. 30, 2009
Jani Lehto, Tampere, FI;
Jani Lehto, Tampere, FI;
Metso Power Oy, Tampere, FI;
Abstract
A pyrolysis apparatus comprises a substantially closed pyrolyzer (), a supply inlet for supplying pyrolyzable fuel to the pyrolyzer (), an outlet for taking hot bed material in particle form out of the pyrolyzer, one or more exit outlets () for taking condensible gaseous substances separated from the fuel to be pyrolyzed out of the pyrolyzer, a condenser () for condensing the condensible gaseous substances into pyrolysis oil, and a line () for transferring the condensible gaseous substances from the exit outlet of the pyrolyzer () to the condenser (). The means for maintaining pyrolysis conditions in the pyrolyzer () comprise an inlet for taking hot bed material in particle form into the pyrolyzer and means () for supplying fluidizing gas to the pyrolyzer. The pyrolyzer () is a chamber bounded directly by a furnace () of a bubbling fluidized bed boiler, through which chamber fluidized bed material is arranged to be circulated between the inlet and the outlet. Means () for supplying fluidizing gas are divided over an area between the inlet () and the outlet () in the pyrolyzer () so that they create a cross-flow of fluidizing gas in relation to the transfer direction (S) of the bed material and fuel.