Hydrotalcite Materials for Carbon Dioxide Adsorption at High Temperatures: Characterization and Diffusivity Measurements

Evaluation of porous clay heterostructures modified with amine species as adsorbent for the CO2 capture

“…However, this technique displays several drawbacks related to the high energy consumption required for their regeneration and the high evaporation of the amine species due to their low thermal stability, which causes corrosion of equipment and the loss of effectiveness along the time [3,4]. In the last decade, the use of porous materials, such as zeolites [5][6][7], carbons [8,9], metal organic frameworks (MOF) [10,11], metal oxides [12,13], layered double hydroxides (LDH) [14,15] or porous silicas [4,[16][17][18][19] have shown to be an alternative to the aqueous alkylamine solutions for the selective CO 2 capture. These materials can be used as molecular sieves with narrow pore size, which favors the specific solid-gas interactions.…”

CO2 adsorption on amine modified mesoporous silicas: Effect of the progressive disorder of the honeycomb arrangement

“…Several solid adsorbents such as zeolites [11][12][13][14], activated carbons [15,16], hydrotalcites [17,18], metal oxides [19,20], metalorganic frameworks (MOF) [20][21][22][23][24] have been studied for CO 2 physisorption. However, amine modified porous silicas such as SBA-12 [25], SBA-15 [25][26][27][28][29][30], SBA-16 [31], MCM-41 [25,32,33], MCM-48 [34,35], HMS [36], KIT-6 [37], mesoporous silica microspheres [38] and mesocellular silica foams [39][40][41] have been the subject of research interest due to their high adsorption capacity and selectivity towards CO 2 .…”

Design aspects of the cyclic hybrid adsorbent-membrane reactor (HAMR) system for hydrogen production

“…), activated carbon (AC), numerous zeolites (e.g. 4A, 5A, CrA CrX, CrY, RhA, 13X, and mordenites), and hydrotalcites (Carvill et al, 1996;Hufton et al, 1999;Sircar et al, 1999;Zou and Rodrigues, 2001;Xiu et al, 2002aXiu et al, , 2003aXiu et al, , 2003bYong and Rodrigues, 2002;Soares et al, 2004Soares et al, , 2007Wang and Rodrigues, 2005;Moreira et al, 2006;Lee et al, 2007a). Under relatively low-temperatures, AC and zeolite adsorbents have fairly high capacities.…”