Patent EP-2348253-A1 (EP)
Inventor: RUEDLINGER MIKAEL
IPC: F23J15/06
Filed: 2010-01-22
Abstract: The method for emission-free generation of energy and/or hydrocarbons and other products by utilizing carbon-containing materials, comprises supplying and pyrolyzing the carbon-containing materials in a first process stage for producing pyrolysis coke (M21) and pyrolysis gas (M22), gasifying the pyrolysis coke from the first process stage in a second process stage for producing synthesis gas (M24) for removing slag and other residual materials, and converting the synthesis gas from the second process stage into hydrocarbons and/or other solid, liquid and/or gaseous products (M60). The method for emission-free generation of energy and/or hydrocarbons and other products by utilizing carbon-containing materials, comprises supplying and pyrolyzing the carbon-containing materials in a first process stage for producing pyrolysis coke (M21) and pyrolysis gas (M22), gasifying the pyrolysis coke from the first process stage in a second process stage for producing synthesis gas (M24) for removing slag and other residual materials, and converting the synthesis gas from the second process stage into hydrocarbons and/or other solid, liquid and/or gaseous products (M60), which are discharged, in a third process stage. The three process stages form a closed cycle. Excess gas (M25) from the third process stage is conducted as recycled gas into the first process stage and/or the second process stage, and the pyrolysis gas from the first process stage is conducted into the second process stage and/or the third process stage. Hydrogen is supplied in the third process stage and carbon dioxide is supplied in the first process stage or second process stage. A pressure difference exists along the circuit. The supply of heat energy is carried out for the pyrolysis reaction in the first process stage through recirculation of the part of the hot synthesis gas from the second process stage into the first process stage, and/or through partial oxidation of the carbon-containing initial material and the pyrolysis coke. The first process stage is carried out at 500-600[deg] C. Oxygen and/or water steam and/or carbon dioxide is used as degasification agent for the degasification reaction in the second process stage. In the second process stage, the thermal energy necessary for the degasification reaction is supplied through heating device and/or heat exchanger and/or through oxidation of a part of the pyrolysis coke with oxidation agent such as oxygen. The second process stage is carried out at 850-1000[deg] C. The first process stage and/or the second process stage is carried out at a pressure of 10-15 bar in same pressure reactor. The third process stage is carried out with a FischeruTropsch synthesis or a liquid phase methanol synthesis. The electrical and/or mechanical energy is produced through oxidation of the hydrocarbons and/or other solid, fluid and/or gaseous product of the third process stage to an oxidation gas having carbon dioxide. Pure oxygen is used as oxidation agent, and water is condensed out and/or separated from the oxidation gas. The portion of the oxidation gas is stored in the first process stage and/or the second process stage and/or the third processes stage. The electrical and/or mechanical energy is produced in which the synthesis gas is cooled in a heat exchanger. The electrical and/or mechanical energy is produced from water steam and/or another hot gas with steam turbine. An independent claim is included for a device for emission-free generation of energy and/or hydrocarbons and other products by utilizing carbon-containing materials.