globalchange  > 气候减缓与适应
DOI: 10.1016/j.jcou.2018.04.012
Scopus记录号: 2-s2.0-85046040099
论文题名:
Calcium precursor from stirring processes at room temperature for controllable preparation of nano-structure CaO sorbents for high-temperature CO2 adsorption
作者: Zhao B.; Ma L.; Shi H.; Liu K.; Zhang J.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 25
起始页码: 315
结束页码: 322
语种: 英语
英文关键词: Calcium carbonate precursors ; Calcium oxide ; Carbon dioxide adsorption ; CO2-storage material (CO2SM)
Scopus关键词: Calcite ; Calcium carbonate ; Crystal structure ; Gas adsorption ; Lime ; Nanostructures ; Cao sorbents ; Carbon dioxide adsorption ; Carbonate precursor ; CO2 adsorption ; CO2-storage material (CO2SM) ; Crystalline phase ; High temperature ; Preparation process ; Carbon dioxide
英文摘要: Nano-structure CaO crystals with an average size of 480 nm × 255 nm (length and width) were prepared by simply roasting CaCO3 precursors at 900 °C for 2 h. The CaCO3 precursors with a pure vaterite crystalline phase were readily synthesized by a room temperature stirring method using Ca(NO3)2 and CO2 storage material (CO2SM). The CO2SM played an important role in providing CO3 2- source and structure controlling. The effects of CO2SM dosage, Ca2+ concentration, and stirring time on the crystallization of CaCO3 precursors were investigated. In addition, the CO2SM was successfully regenerated by simply exposing the filtrate from the preparation process to CO2 for further preparing CaCO3 precursor. The as-obtained CaO crystals exhibited a strong CO2 adsorption capacity up to 17.18 mmol g-1 under 0.1 MPa at 700 °C. © 2018 Elsevier Ltd. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111917
Appears in Collections:气候减缓与适应

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作者单位: College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China; Inner Mongolia Engineering Research Center for CO2 Capture and Utilization, Hohhot, 010051, China; Key Laboratory of Coal-based CO2 Capture and Geological Storage, China University of Mining and Technology, Xuzhou, 221008, China

Recommended Citation:
Zhao B.,Ma L.,Shi H.,et al. Calcium precursor from stirring processes at room temperature for controllable preparation of nano-structure CaO sorbents for high-temperature CO2 adsorption[J]. Journal of CO2 Utilization,2018-01-01,25
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