The capture of carbon dioxide by transition metal aluminates, calcium aluminate, calcium zirconate, calcium silicate and lithium zirconate

作     者：Ganesh TILEKAR Kiran SHINDE Kishor KALE Reshma RASKAR Abaji GAIKWAD 

作者机构：Chemical Engineering and Process Development DivisionNational Chemical LaboratoryPune 411008India 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2011年第5卷第4期

页      面：477-491页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Department of Science and Technology  Government of India for Research Grant 

主　　题：captured CO_(2) pre-combustion temperature characterization calcium silicate calcium zirconate 

摘      要：The capture of CO_(2) by transition metal(Mn,Ni,Co and Zn)aluminates,calcium aluminate,calcium zirconate,calcium silicate and lithium zirconate was carried out at pre-and post-combustion *** prepared metal adsorbents were characterized by X-ray diffraction(XRD),scanning electron microscope(SEM),surface area analysis and acidity/alkalinity *** different experimental variables affecting the adsorbents ability to capture CO_(2),such as the mol ratio of metal ions,the pressure of CO_(2),the exposure time and the temperature of the adsorbent were also *** zirconate captured 13.85 wt-%CO_(2) at 650℃ and 2.5 atm and calcium silicate captured 14.31 wt-%at 650℃.Molecular sieves(13X)and carbon can only capture a negligible amount of CO_(2) at high temperatures(300℃–650℃).However,the mixed metal oxides captured reasonable amount of CO_(2) at these higher *** addition,calcium aluminate,calcium zirconate,calcium silicate and lithium zirconate adsorbents captured CO_(2) at both pre and post-combustion *** trend for the amount of captured carbon dioxide over the adsorbents was calcium aluminatelithium zirconatecalcium zir-conatecalcium silicate.