METHOD FOR CONVERTING THE RDF FRACTION INTO A SYNTHESIS GAS

• Main Authors: ALFONSO ARTIGAS AYALA, RAFAEL BILBAO DUÑABEITIA, ALBERTO JESÚS GALA BURO, EDUARDO FERNÁNDEZ GIMÉNEZ, JESÚS MARÍA ARAUZO PÉREZ, MARTA GUERRERO ÁLVAREZ
• Format: Patent
• Language: English; Portuguese
• Published: 02.05.2018
• Subjects: CARBURETTING AIR OR OTHER GASES; CHEMISTRY; COMPOUNDS THEREOF; DISPOSAL OF SOLID WASTE; FUELS; INORGANIC CHEMISTRY; LUBRICANTS; METALLURGY; NON-METALLIC ELEMENTS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE; RECLAMATION OF CONTAMINED SOIL SOIL; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING

The present invention relates to a method for producing a synthesis gas from municipal solid waste (MSW) and, more particularly, from the fraction thereof called refuse-derived fuel (RDF). The method comprises a step of gasification on a bubbling fluidized bed at atmospheric pressure and temperatures in the range of 750°C a 850°C, using oxygen-enriched air as a gasifying agent, and a step of immediate cleaning and conditioning of the synthesis gas, mainly based on the use of a catalytic reforming reactor comprising a bed formed by a metal catalyst, which operates at a temperature between 750°C and 850°C, where the endothermic reforming process is carried out with water vapor from tars and other hydrocarbons.