当前位置：
X-MOL 学术
›
Greenh. Gases Sci. Technol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Coupled CO2 capture and thermochemical heat storage of CaO derived from calcium acetate
Greenhouse Gases: Science and Technology ( IF 2.7 ) Pub Date : 2020-07-26 , DOI: 10.1002/ghg.2021 Chaoying Sun 1 , Xianyao Yan 1 , Yingjie Li 1 , Jianli Zhao 1 , Zeyan Wang 1 , Tao Wang 2
Greenhouse Gases: Science and Technology ( IF 2.7 ) Pub Date : 2020-07-26 , DOI: 10.1002/ghg.2021 Chaoying Sun 1 , Xianyao Yan 1 , Yingjie Li 1 , Jianli Zhao 1 , Zeyan Wang 1 , Tao Wang 2
Affiliation
CaO/Ca(OH)2 thermochemical heat storage (THS) technology is considered to be one of the most promising technologies for large‐scale solar energy storage. However, the THS performance of raw CaO‐based materials decreases during multiple cycles. In this work, CaO derived from calcium acetate (Ac‐CaO) is prepared and applied to a coupled system that achieved simultaneous CaO/Ca(OH)2 THS and CO2 capture. The CO2 capture and THS performances of Ac‐CaO are always higher than those of calcined limestone owing to the preferable pore structure, whereas Ac‐CaO exhibits decreasing CO2 capture and THS performance resulting from sintering and the formation of CaCO3 from CaO or Ca(OH)2 with ambient CO2 during air cooling, respectively. In the coupled CaO/Ca(OH)2 THS and CO2 capture system, Ac‐CaO is subjected to 10 CO2 capture cycles, 30 THS cycles, 1 CO2 capture cycle, 10 THS cycles, 1 CO2 capture cycle, and 10 THS cycles sequentially. The hydration and dehydration conversions of Ac‐CaO in the 31st THS cycle reach 91.7 and 93.6%, respectively, which are 1.6 and 1.6 times higher than those recorded prior to the 11th CO2 capture cycle owing to the decomposition of CaCO3 during calcination. The carbonation conversion of Ac‐CaO achieves 89.9% in the 11th CO2 capture cycle, which is 22.3% higher than that recorded prior to the 10 THS cycles owing to reactivation from the hydration process during THS. The CO2 capture and CaO/Ca(OH)2 THS processes are enhanced in the coupled system using Ac‐CaO; therefore, the coupled system appears promising for CaO/Ca(OH)2 THS and CO2 capture. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd.
中文翻译：
乙酸钙衍生的CaO的CO2捕获和热化学储热耦合
CaO / Ca（OH）2热化学储热（THS）技术被认为是大规模太阳能存储最有希望的技术之一。但是，原始CaO基材料的THS性能会在多个周期内下降。在这项工作中，制备了由乙酸钙（Ac-CaO）衍生的CaO，并将其应用于可同时捕获CaO / Ca（OH）2 THS和CO 2的耦合系统。的CO 2的Ac-的CaO捕获和THS性能比由于优选的孔结构的那些煅烧石灰石的总高，而AC-CaO的展品减少CO 2捕获和THS性能从烧结所得和CaCO形成3从CaO或钙（OH）2在空气冷却期间分别使用环境CO 2。在耦合的CaO / Ca（OH）2 THS和CO 2捕获系统中，Ac‐CaO经受10个CO 2捕获周期，30个THS周期，1个CO 2捕获周期，10个THS周期，1个CO 2捕获周期以及依次进行10个THS周期。在第31个THS循环中，Ac-CaO的水合和脱水转化率分别达到91.7和93.6％，由于在煅烧过程中CaCO 3的分解，比第11个CO 2捕集循环之前记录的分别高1.6和1.6倍。在第11个CO 2中，Ac-CaO的碳酸转化率达到89.9％捕获周期，由于THS期间水化过程的重新激活，比10个THS周期之前记录的捕获周期高22.3％。在使用Ac‐CaO的耦合系统中，CO 2捕集和CaO / Ca（OH）2 THS工艺得到了增强；因此，耦合系统似乎有望用于捕获CaO / Ca（OH）2 THS和CO 2。©2020年化学工业协会和John Wiley＆Sons，Ltd.
更新日期：2020-07-26
中文翻译：
乙酸钙衍生的CaO的CO2捕获和热化学储热耦合
CaO / Ca（OH）2热化学储热（THS）技术被认为是大规模太阳能存储最有希望的技术之一。但是，原始CaO基材料的THS性能会在多个周期内下降。在这项工作中，制备了由乙酸钙（Ac-CaO）衍生的CaO，并将其应用于可同时捕获CaO / Ca（OH）2 THS和CO 2的耦合系统。的CO 2的Ac-的CaO捕获和THS性能比由于优选的孔结构的那些煅烧石灰石的总高，而AC-CaO的展品减少CO 2捕获和THS性能从烧结所得和CaCO形成3从CaO或钙（OH）2在空气冷却期间分别使用环境CO 2。在耦合的CaO / Ca（OH）2 THS和CO 2捕获系统中，Ac‐CaO经受10个CO 2捕获周期，30个THS周期，1个CO 2捕获周期，10个THS周期，1个CO 2捕获周期以及依次进行10个THS周期。在第31个THS循环中，Ac-CaO的水合和脱水转化率分别达到91.7和93.6％，由于在煅烧过程中CaCO 3的分解，比第11个CO 2捕集循环之前记录的分别高1.6和1.6倍。在第11个CO 2中，Ac-CaO的碳酸转化率达到89.9％捕获周期，由于THS期间水化过程的重新激活，比10个THS周期之前记录的捕获周期高22.3％。在使用Ac‐CaO的耦合系统中，CO 2捕集和CaO / Ca（OH）2 THS工艺得到了增强；因此，耦合系统似乎有望用于捕获CaO / Ca（OH）2 THS和CO 2。©2020年化学工业协会和John Wiley＆Sons，Ltd.
京公网安备 11010802027423号