DSpace Collection:http://hdl.handle.net/10261/13452024-03-19T01:14:22Z2024-03-19T01:14:22ZCO2 capture method using a countercurrent moving bed reactorAbanades García, Juan CarlosÁlvarez Criado, Yolandahttp://hdl.handle.net/10261/3425282024-01-17T02:47:37Z2024-01-16T15:09:54ZTítulo: CO2 capture method using a countercurrent moving bed reactor
Autor: Abanades García, Juan Carlos; Álvarez Criado, Yolanda
Resumen: It is disclosed a method to capture CO2 from a gas using Ca-containing porous solids composed of Ca(OH)2 and/or CaO, arranged in a packed bed to contact with the gas. The method comprises the use of a carbonator reactor operated in a countercurrent moving bed mode. Such configuration provides the conditions to generate an autothermal central region in the reactor at optimum carbonation temperature between 600-700ºC when using Ca-containing stones, pellets or extruded bricks with effective diameters or thickness between 1-10 cm and solid residence times between 1 to 20 hours, when treating gases with CO2 content between 2-25%v. In another embodiment, the method provides optimum conditions for efficient CO2 capture from gases with CO2 content below 2%v, including ambient air, at temperatures below 100ºC and relative humidity between 80-100%, to achieve maximum carbonation conversion with solid residence times between 20 to 200 hours.2024-01-16T15:09:54ZCO2 capture method using a countercurrent moving bed reactorAbanades García, Juan CarlosÁlvarez Criado, Yolandahttp://hdl.handle.net/10261/3425262024-01-17T07:04:23Z2024-01-16T15:00:38ZTítulo: CO2 capture method using a countercurrent moving bed reactor
Autor: Abanades García, Juan Carlos; Álvarez Criado, Yolanda
Resumen: [EN] This invention discloses a method to capture CO2 from a gas using Ca-containing porous solids composed of Ca(OH)2 and/or CaO, arranged in a packed bed to contact with the gas. The method is characterized by the use of a carbonator reactor operated in a countercurrent moving bed mode. Such configuration provides the conditions to generate an autothermal central region in the reactor at optimum carbonation temperature between 600-700°C when using Ca-containing stones, pellets or extruded bricks with effective diameters or thickness between 1-10 cm and solid residence times between 1 to 20 hours, when treating gases with CO2 content between 2-25%v. In another embodiment, the method provides optimum conditions for efficient CO2 capture from gases with CO2 content below 2%v, including ambient air, at temperatures below 100°C and relative humidity between 80-100%, to achieve maximum carbonation conversion with solid residence times between 20 to 200 hours.; [FR] La présente invention concerne un procédé de capture de CO2 à partir d'un gaz au moyen de solides poreux contenant du Ca composés de Ca(OH)2 et/ou CaO, agencés dans un lit à garnissage pour entrer en contact avec le gaz. Le procédé est caractérisé par l'utilisation d'un réacteur carbonateur fonctionnant dans un mode de lit mobile à contre-courant. Une telle configuration fournit les conditions pour générer une région centrale autothermique dans le réacteur à une température de carbonatation optimale entre 600 et 700 °C lors de l'utilisation de pierres, de granulés ou de briques extrudées contenant du Ca, ayant des diamètres ou une épaisseur efficaces entre 1 et 10 cm et des temps de séjour des solides entre 1 et 20 heures, lors du traitement de gaz avec une teneur en CO2 comprise entre 2 et 25 % v. Dans un autre mode de réalisation, le procédé fournit des conditions optimales pour une capture efficace du CO2 à partir de gaz ayant une teneur en CO2 inférieure à 2 % v, comprenant de l'air ambiant, à des températures inférieures à 100 °C et une humidité relative entre 80 et 100 %, pour obtenir une conversion de carbonatation maximale avec des temps de séjour des solides entre 20 et 200 heures.2024-01-16T15:00:38ZUse of a reactor for heating a gasAbanades García, Juan Carloshttp://hdl.handle.net/10261/3424242024-01-16T02:18:29Z2024-01-15T16:30:41ZTítulo: Use of a reactor for heating a gas
Autor: Abanades García, Juan Carlos
Resumen: This invention discloses a reactor and methods for heating of a gas as it reacts with a solid. The reactor contains gas conducts that are empty of solids and that cross through a region packed with solids. The wall of the gas conducts has orifices to make it permeable but not selective to gases, while effectively separating the solids from the gas. In the reactor, the heat source to heat up the gas is generated by the exothermic reaction of the solids with one active component of the gas. The region packed with the reacting solids is at temperatures ranging from 500°C to 1500°C, to promote the heat transfer towards the gas and the high reactivity of the solids with the active components of the gas, that is forced to diffuse from the conduct through the orifices of the conduct wall.2024-01-15T16:30:41ZUso de un reactor para calentar un gasAbanades García, Juan Carloshttp://hdl.handle.net/10261/3424232024-01-16T02:18:10Z2024-01-15T16:20:52ZTítulo: Uso de un reactor para calentar un gas
Autor: Abanades García, Juan Carlos
Resumen: Esta invención describe un reactor y métodos para calentar un gas cuando reacciona con un sólido. El reactor contiene conductos de gas vacíos de sólidos y que atraviesan una región llena de sólidos. La pared de los conductos de gas tiene orificios para hacerlo permeable pero no selectivo a los gases, mientras separa efectivamente los sólidos del gas. En el reactor, la fuente de calor para calentar el gas se genera por la reacción exotérmica de los sólidos con un componente activo del gas. La región empacada con los sólidos reaccionantes se encuentra a temperaturas que oscilan entre 500°C y 1500°C, para promover la transferencia de calor hacia el gas y la alta reactividad de los sólidos con los componentes activos del gas, que es forzado a difundirse desde el conducto a través de los orificios de la pared del conducto.2024-01-15T16:20:52Z