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handle: 10261/92650
[ES] La presente invención está dirigida a un nuevo carbón activado que se caracteriza por su alto contenido en nitrógeno, así como al método de obtención del mismo a partir de residuos sólidos industriales de curtido vegetal de piel bovina, o de piel bovina sin curtir libre de taninos, desgrasada y deshidratada con acetona, comprendiendo el método las siguientes etapas: triturar el material de partida después de secarlo en el caso de que sea necesario para obtener un precursor, someter el precursor a tratamiento termoquímico de activación con hidróxido de potasio, lavar el material con ácido clorhídrico y agua destilada, y secar el carbón activado. Asimismo, la presente invención trata del uso del carbón activado en procesos de retención de gases, como es la captura de CO2 o la purificación de mezclas CO2/H2
[EN] The present invention relates to a novel activated charcoal which is characterised by having high nitrogen content, and to the method for obtaining same from solid industrial waste from vegetable tanning of bovine hides, or from tannin-free non-tanned bovine hide, which has been defatted and dehydrated with acetone, said method including the following steps: grinding up the starting material after drying same if necessary in order to obtain a precursor, subjecting the precursor to thermochemical activation treatment with potassium hydroxide, washing the material with hydrochloric acid and distilled water, and drying the activated charcoal. Likewise, the present invention relates to the use of activated charcoal in gas-retention processes, such as the capture of CO2 or the purification of CO2/H2 mixes.
A1 Solicitud de patente con informe sobre el estado de la técnica
Consejo Superior de Investigaciones Científicas (España)
Peer reviewed
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