Method of fuel for energetics production and fuel producing device
AssigneeHedviga Group, A.S.
InventorsPetr CUBER, Monika PULLMANOVÁ
Life of this patent
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Abstract
Pressure vessels containing a charge are preheated at pressure of 2 to 5 kPa with liquid heat carrier to maximally 120° C. They are afterheated in another place to maximally 550° C. The pressure vessels are continually added and/or replaced and generated gasses are continuously drawn off, cooled to maximally 60° C. and separated oily condensate. Residual gasses and solid residues are burned after treatment in a cogeneration unit.
Claims12
Method of fuel for energetics production in which a carbonaceous material is processed by means of thermal decomposition without the presence of flame, when a charge of material is placed into a cavity inside a mobile container and the mobile container is heated up in an appropriately heated space, while an outlet and a gas pipeline (7) for outlet of gasses generated by thermal decomposition is connected to the mobile container in at least some phase of thermal decomposition of the charge and with the help of it the gasses generated from the charge are drawn off for further processing, and when finally a solid residue, for example carbonized particles utilizable as a fuel for power engineering, remains from the charge of material in the mobile container, characterized by that the mobile container used is a pressure vessel (1) with a gas outlet (5), which is closed after insertion of the charge and placed into a preheating unit (2), its gas outlet (5) is connected to a gas pipeline (7) and before and/or after the said connection, present air with contingent gases is exhausted from the pressure vessel (1) through the gas outlet (5) and in so doing, the pressure in the pressure vessel (1) is decreased to 2 to 5 kPa, the pressure vessel (1) in the state connected to the gas pipeline (7) is preheated to the temperature of 90 to 120° C., where this preheating is done within 60 to 120 minutes and during this time period pressure in the connected gas pipeline (7) is maintained at 2 to 5 kPa and the gas mixture released by thermal decomposition of the charge in the pressure vessel (1) is drawn off through the gas pipeline (7) after which the gas outlet (5) is closed and disconnected, the pressure vessel (1) in closed state is relocated to another unit, that is to an afterheating unit (3) in which a space heated up to higher temperature, but not higher than 550° C., occurs, and here the gas outlet (5) of the pressure vessel (1) is also connected to the gas pipeline (7), this gas outlet (5) is opened and the pressure vessel (1) is afterheated maximally for 180 minutes, while during this time period, pressure in the connected gas pipeline (7) is maintained at 2 to 5 kPa and the gas mixture generated in the pressure vessel (1) is drawn off through this gas pipeline (7).
12-22. (canceled)
Dependencies are inferred from the claim text.