Adsorption of CO2 on Mixed Oxides Derived from Ca–Al–ClO4-Layered Double Hydroxide

In this paper, we studied the CO2 adsorption performances of well-mixed oxides with Ca/Al ratios of 2:1, 2.5:1, 3:1, 3.5:1, and 4:1, which were prepared through the thermal decomposition of co-precipitated hydrotalcite-like Ca–Al–ClO4 precursors. The mixed oxides with a Ca/Al ratio of 3 exhibited the best performance at the adsorption temperature of 600 °C, and approximately 87% of the initial CO2 capture capacity was retained after 50 cycles of multiple carbonation/calcination tests. The favorable cyclical performance of the adsorbent is attributed to the homogeneous distribution of Al2O3 among CaO particles, which effectively prevented the aggregation and sintering of CaO crystallite. Furthermore, a smaller particle size (about 30 nm) of CaO allowed for as much carbonation as possible to take place at the rapid reaction-controlled regime rather than at the diffusion-controlled regime, resulting in the favorable long-term adsorption performance.

[1]  Shengping Wang,et al.  CaO-based meshed hollow spheres for CO2 capture , 2015 .

[2]  Chun Xing Li,et al.  Porous spherical CaO-based sorbents via PSS-assisted fast precipitation for CO2 capture. , 2014, ACS applied materials & interfaces.

[3]  P. Smirniotis,et al.  Influence of the Synthesis Method on the Structure and CO2 Adsorption Properties of Ca/Zr Sorbents , 2014 .

[4]  Y. Chyou,et al.  Synthesis, characterization and high temperature CO2 capture capacity of nanoscale Ca-based layered double hydroxides via reverse microemulsion , 2014 .

[5]  San-Yuan Chen,et al.  CO₂ sorbents with scaffold-like Ca-Al layered double hydroxides as precursors for CO₂ capture at high temperatures. , 2013, ChemSusChem.

[6]  M. Iliuta,et al.  Limestone Acidification Using Citric Acid Coupled with Two-Step Calcination for Improving the CO2 Sorbent Activity , 2013 .

[7]  Qiang Wang,et al.  Synthesis of nano-sized spherical Mg3Al–CO3 layered double hydroxide as a high-temperature CO2 adsorbent , 2013 .

[8]  David Chadwick,et al.  Graphene Oxide as Support for Layered Double Hydroxides: Enhancing the CO2 Adsorption Capacity , 2012 .

[9]  San-Yuan Chen,et al.  Synthesis, characterization, and CO(2) adsorptive behavior of mesoporous AlOOH-supported layered hydroxides. , 2012, ChemSusChem.

[10]  Abdullah M. Asiri,et al.  Layered double hydroxides supported on multi-walled carbon nanotubes: preparation and CO2 adsorption characteristics , 2012 .

[11]  Y. Chyou,et al.  Ca-rich Ca-Al-oxide, high-temperature-stable sorbents prepared from hydrotalcite precursors: synthesis, characterization, and CO2 capture capacity. , 2011, ChemSusChem.

[12]  Jinlong Gong,et al.  Recent advances in capture of carbon dioxide using alkali-metal-based oxides , 2011 .

[13]  Su-fang Wu,et al.  Formation of a Ca12Al14O33 Nanolayer and Its Effect on the Attrition Behavior of CO2-Adsorbent Microspheres Composed of CaO Nanoparticles , 2010 .

[14]  Bo Feng,et al.  Calcium precursors for the production of CaO sorbents for multicycle CO2 capture. , 2010, Environmental science & technology.

[15]  Martunus,et al.  Synthetic hydrotalcites from different routes and their application as catalysts and gas adsorbents: a review , 2009 .

[16]  Sotiris E. Pratsinis,et al.  Nanostructured Ca-based sorbents with high CO2 uptake efficiency , 2009 .

[17]  Angeliki A. Lemonidou,et al.  Parametric Study of the CaO−Ca12Al14O33 Synthesis with Respect to High CO2 Sorption Capacity and Stability on Multicycle Operation , 2008 .

[18]  N. Hutson,et al.  High temperature adsorption of CO2 on various hydrotalcite-like compounds , 2008 .

[19]  R. Barker,et al.  The reversibility of the reaction CaCO3 ⇄ CaO+CO2 , 2007 .

[20]  J. D. Costa,et al.  Layered Double Hydroxides for CO2 Capture: Structure Evolution and Regeneration , 2006 .

[21]  Yu-yu Huang,et al.  Effect of Preparation Temperature on Cyclic CO2 Capture and Multiple Carbonation−Calcination Cycles for a New Ca-Based CO2 Sorbent , 2006 .

[22]  Ningsheng Cai,et al.  Synthesis, experimental studies, and analysis of a new calcium-based carbon dioxide absorbent , 2005 .

[23]  E. J. Anthony,et al.  Capture of CO2 from combustion gases in a fluidized bed of CaO , 2004 .

[24]  Juan Carlos Abanades,et al.  Enhancement of CaO for CO2 capture in an FBC environment , 2003 .

[25]  J. C. Abanades,et al.  Conversion Limits in the Reaction of CO2 with Lime , 2003 .

[26]  J. C. Abanades.  The maximum capture efficiency of CO2 using a carbonation/calcination cycle of CaO/CaCO3 , 2002 .

[27]  M. Aihara,et al.  Development of porous solid reactant for thermal-energy storage and temperature upgrade using carbonation/decarbonation reaction , 2001 .

[28]  John P. Longwell,et al.  Product Layer Diffusion during the Reaction of Calcium Oxide with Carbon Dioxide , 1999 .

[29]  W. Kagunya,et al.  Catalytic Properties of Layered Double Hydroxides and Their Calcined Derivatives , 1996 .

[30]  Fabrizio Cavani,et al.  Hydrotalcite-type anionic clays: Preparation, properties and applications. , 1991 .

[31]  Jose Manuel Valverde,et al.  Ca-based synthetic materials with enhanced CO2 capture efficiency , 2013 .

[32]  Qiang Wang,et al.  CO2 capture by solid adsorbents and their applications: current status and new trends , 2011 .

[33]  M. C. Hermosín,et al.  Adsorption of anionic species on hydrotalcite-like compounds: effect of interlayer anion and crystallinity , 2001 .

[34]  J. Besse,et al.  Anionic Clays: Trends in Pillaring Chemistry , 1992 .

[35]  D. D. Perlmutter,et al.  Effect of the product layer on the kinetics of the CO2‐lime reaction , 1983 .