High-temperature CO2 capture cycles of hydrated limestone prepared with aluminum (hydr)oxides derived from kaolin

Abstract A simple and convenient process was used to improve the utilization of natural limestone and kaolin for calcium looping technology and environmental applications. The calcined natural limestone modified with the distilled water (denoted as Limestone-W), was systematically studied and compared with the other CaO sorbents (calcium acetate, calcium d -gluconate and calcined natural limestone). These CaO-based sorbents were tested for their CO 2 capture behavior through 20 carbonation/calcination cycles in a thermo-gravimetric analyzer (TGA). Their morphology, pore structure and phase composition before and after carbonation/calcination cycles were determined by scanning electron microscopy, nitrogen adsorption, and X-ray diffraction. The first-cycle and multicycle sorption results revealed that the Limestone-W sorbent exhibited a relatively faster reaction rate and higher cyclic CO 2 capture. The characterization data indicated that the Limestone-W was composed of a special calcium oxide structure with lower crystalline and higher porosity nanoparticles, which appeared to be the main reasons for its higher CO 2 capture capability. However, the Limestone-W still suffered loss of reactivity, even though it was less pronounced than the other CaO sorbent. To avoid this unfavorable effect, a thermally stable inert material (aluminum hydroxide derived from kaolin) was incorporated into the Limestone-W structure. This new sorbent revealed higher stability because the formation of a stable framework of Ca 12 Al 14 O 33 particles hindered densification and sintering of the CaO phase. It was concluded that the combination of the distilled water modified limestone with Al(OH) 3 binder is a promising approach for synthesis of CaO-based sorbents with a higher reactivity.

[1]  A. Sánchez-Biezma,et al.  Oxyfuel carbonation/calcination cycle for low cost CO2 capture in existing power plants , 2008 .

[2]  M. Haghighi,et al.  Ultrasound assisted dispersion of different amount of Ni over ZSM-5 used as nanostructured catalyst for hydrogen production via CO2 reforming of methane , 2013 .

[3]  E. Rubin,et al.  Sorbent Cost and Performance in CO2 Capture Systems , 2004 .

[4]  Ron Zevenhoven,et al.  Contribution of iron to the energetics of CO2 sequestration in Mg–silicates-based rock , 2012 .

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

[6]  Pen-Chi Chiang,et al.  Development of high-temperature CO2 sorbents made of CaO-based mesoporous silica , 2010 .

[7]  Xin Guo,et al.  CO2 capture of limestone modified by hydration–dehydration technology for carbonation/calcination looping , 2011 .

[8]  Shasha Gao,et al.  CO2–H2O–coal interaction of CO2 storage in coal beds , 2013 .

[9]  P. Udomsap,et al.  Modification of calcite by hydration–dehydration method for heterogeneous biodiesel production process: The effects of water on properties and activity , 2010 .

[10]  Angeliki A. Lemonidou,et al.  Development of new CaO based sorbent materials for CO2 removal at high temperature , 2008 .

[11]  Karl O. Albrecht,et al.  Development of a CaO-based CO2 sorbent with improved cyclic stability , 2008 .

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

[13]  Zimin Nie,et al.  Magnesia-stabilized calcium oxide absorbents with improved durability for high temperature CO{sub 2} capture , 2009 .

[14]  George Skodras,et al.  Energy and capital cost analysis of CO2 capture in coal IGCC processes via gas separation membranes , 2004 .

[15]  Choong-Gon Lee,et al.  Absorption of CO2 on CaSiO3 at high temperatures , 2009 .

[16]  Ying Zheng,et al.  Development and Performance of CaO/La2O3 Sorbents during Calcium Looping Cycles for CO2 Capture , 2010 .

[17]  B. R. Stanmore,et al.  Review—calcination and carbonation of limestone during thermal cycling for CO2 sequestration , 2005 .

[18]  Bo Feng,et al.  Synthesis of sintering-resistant sorbents for CO2 capture. , 2010, Environmental science & technology.

[19]  Vasilije Manovic,et al.  Influence of calcination conditions on carrying capacity of CaO-based sorbent in CO2 looping cycles , 2009 .

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

[21]  Vasilije Manovic,et al.  CaO-based pellets supported by calcium aluminate cements for high-temperature CO2 capture. , 2009, Environmental science & technology.

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

[23]  Zimin Nie,et al.  MgAl2O4 Spinel-Stabilized Calcium Oxide Absorbents with Improved Durability for High-Temperature CO2 Capture , 2010 .

[24]  Sotiris E. Pratsinis,et al.  Flame-Made Durable Doped-CaO Nanosorbents for CO2 Capture , 2009 .

[25]  Yingjie Li,et al.  Studies on adsorption of carbon dioxide on alkaline paper mill waste using cyclic process , 2014 .

[26]  S. F. Wu,et al.  Behavior of CaTiO3/Nano-CaO as a CO2 Reactive Adsorbent , 2010 .

[27]  Ataullah Khan,et al.  Relationship between Structural Properties and CO2 Capture Performance of CaO-Based Sorbents Obtained from Different Organometallic Precursors , 2008 .

[28]  Rongyue Sun,et al.  Enhancement of CO2 capture capacity by modifying limestone with propionic acid , 2013 .

[29]  Chuguang Zheng,et al.  High temperature capture of CO2 on lithium-based sorbents from rice husk ash. , 2011, Journal of hazardous materials.

[30]  Andrew T. Harris,et al.  Reactivity of CaO derived from nano-sized CaCO3 particles through multiple CO2 capture-and-release cycles , 2009 .

[31]  By Vlatko Materić,et al.  Effect of repeated steam hydration reactivation on CaO-based sorbents for CO2 capture. , 2010, Environmental science & technology.

[32]  Xin Guo,et al.  Cyclic CO2 capture of CaO-based sorbent in the presence of metakaolin and aluminum (hydr)oxides , 2010 .

[33]  E. J. Anthony,et al.  Fluidized bed combustion systems integrating CO2 capture with CaO. , 2005, Environmental science & technology.

[34]  Minghou Xu,et al.  Performance Enhancement of Calcium Oxide Sorbents for Cyclic CO2 Capture—A Review , 2012 .

[35]  Vasilije Manovic,et al.  Sintering and Formation of a Nonporous Carbonate Shell at the Surface of CaO-Based Sorbent Particles during CO2-Capture Cycles , 2010 .