期刊
FUEL
卷 127, 期 -, 页码 62-69出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2013.10.046
关键词
CO2 capture; Ca-based sorbent; Triethanolamine; Sol-gel method; Parametric study
资金
- European Union (European Social Fund - ESF)
- Greek national funds through the Operational Program Education and Lifelong Learning'' of the National Strategic Reference Framework (NSRF) - Research Funding Program: THALES
One of the most promising technologies for CO2 capture is the Calcium Looping Cycle, which is based on the reversible carbonation reaction of CaO. The main challenge for CaL technology is the deterioration of CO2 capture capacity during multicyclic operation. In this work, the triethanolamine (TEA) was used as a complexing agent in a modified sol-gel method for the preparation of sintering resistant CaO-Ca3Al2O6. The sorbent showed high capture capacity (0.45 g/g sorb. or 84% carbonation conversion) which was retained after 45 cycles. Parametric study of sorption was realized by varying the carbonation and calcination conditions temperature and CO2 concentration). Under severe conditions of calcination temperature at 950 degrees C in pure CO2 flow after 100 cycles the sorbent still retained almost 40% of the initial sorption capacity corresponding to 30% carbonation conversion. (C) 2013 Elsevier Ltd. All rights reserved.
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