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1. WO2006117579 - METHOD AND APPARATUS FOR GASIFYING AND BURNING PELLETS MADE FROM HERBACEOUS PLANTS

Publication Number WO/2006/117579
Publication Date 09.11.2006
International Application No. PCT/HU2006/000034
International Filing Date 26.04.2006
IPC
F23J 3/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
3Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
04Traps
F23B 30/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
30Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber
02with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts
06with fuel-supporting surfaces that are specially adapted for advancing the fuel through the combustion zone
F23B 80/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
80Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
CPC
F23B 10/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
10Combustion apparatus characterised by the combination of two or more combustion chambers
F23B 30/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
30Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber
02with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts
06with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone
08with fuel-supporting surfaces that move through the combustion zone, e.g. with chain grates
F23B 50/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
50Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
12the fuel being fed to the combustion zone by free fall or by sliding along inclined surfaces, e.g. from a conveyor terminating above the fuel bed
F23B 90/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
90Combustion methods not related to a particular type of apparatus
F23B 90/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
90Combustion methods not related to a particular type of apparatus
04including secondary combustion
06the primary combustion being a gasification or pyrolysis in a reductive atmosphere
F23G 2209/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
2209Specific waste
26Biowaste
Applicants
  • FOCK, József [HU]/[HU] (AllExceptUS)
  • FÖLDI, László [HU]/[HU] (AllExceptUS)
  • MORVAI, Ferenc [HU]/[HU]
Inventors
  • MORVAI, Ferenc
Agents
  • S.B.G. & K. PATENT AND LAW OFFICES
Priority Data
P050043402.05.2005HU
Publication Language English (EN)
Filing Language Hungarian (HU)
Designated States
Title
(EN) METHOD AND APPARATUS FOR GASIFYING AND BURNING PELLETS MADE FROM HERBACEOUS PLANTS
(FR) PROCEDE ET APPAREIL POUR GAZEIFIER ET BRULER DES GRANULES FAITES A PARTIR DE PLANTES HERBACEES
Abstract
(EN)
The object of the invention is a method for gasifying and burning pellets made from herbaceous plants, particularly from energy grass in a boiler. The method involves determining in advance the melting point of pellet ash, feeding the pellets on a travelling grate located in the combustion chamber of the boiler and igniting the in- fed pellets. Gasifying air and recycled flue gas is passed trough the pellet bed, where the supplied gasifying air is sufficient only for the incomplete combustion of pellets, with the produced combustible gas being burned utilizing in-fed auxiliary air, and combustion heat being captured by passing the flue gases through flue gas tubes of the water-heating heat exchanger of the boiler.
(FR)
L’objet de l’invention est un procédé pour la gazéification et le brûlage de granules faites à partir de plantes herbacées, en particulier à partir d’herbe énergétique dans une chaudière. Le procédé implique la détermination à l’avance du point de fusion de la cendre de granulé, l’alimentation des granulés sur une grille de convoyage placée dans la chambre de combustion de la chaudière et l’allumage des granulés alimentés à l’intérieur. L’air gazéifiant et le gaz d’évacuation recyclé sont passés à travers le lit de granulés, où l’air gazéifiant fourni est suffisant seulement pour la combustion incomplète des granulés, avec le gaz combustible produit qui est brûlé en utilisant l’air auxiliaire alimenté à l’intérieur, et la chaleur de combustion étant capturée au moyen du passage des gaz d’évacuation à travers les tubes de gaz d’évacuation de l’échangeur de chaleur de chauffage d’eau de la chaudière.
Also published as
EP6727226
Latest bibliographic data on file with the International Bureau