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Title: Affecting mechanism of activation conditions on the performance of NaNO3-modified dolomite for CO2 capture
Author: Yang, Xinfang1, 2; Zhao, Lifeng1, 2; Xiao, Yunhan1, 2
Source: ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
Issued Date: 2015-09-01
Volume: 10, Issue:5, Pages:754-763
Keyword: MgO-CaCO3 absorbent ; CO2 capture ; NaNO3 ; dolomite ; activation condition
DOI: 10.1002/apj.1913
DOC Type: Article
English Abstract: The affecting mechanism of activation conditions on the performance of NaNO3-modified dolomites for CO2 capture was conducted combined with the activation tests and the CO2 absorption tests. The weight loss during activation was determined by the combined effects of the NaNO3 content, activation temperature, and activation atmosphere, for their combined effects on the ion diffusion. Moreover, the greater weight loss during activation did not elicit a corresponding increase in CO2 absorption ability of the activated absorbents. CO2 absorption activity tests indicated that the sample 0.20Na-dol activated at 500 degrees C in N-2 showed the best cyclic CO2 absorption ability. The underlying mechanism was then analyzed based on the results of the Brunauer-Emmett-Teller, X-ray diffraction, and Raman analysis of the absorbents. The results indicated that the different CO2 absorption abilities might be due to the two kinds of molecular arrangements between the MgO and CaCO3 grains obtained during activation. (c) 2015 Curtin University of Technology and John Wiley & Sons, Ltd.
WOS Headings: Science & Technology ; Technology
WOS Subject: Engineering, Chemical
WOS Subject Extended: Engineering
WOS Keyword Plus: PARTIAL DECOMPOSITION ; RAMAN-SPECTROSCOPY ; DOUBLE SALT ; TEMPERATURE ; MGO ; CALCITE ; NANO3 ; ABSORBENT ; SORBENTS ; SORPTION
Indexed Type: SCI
Funder: National Natural Science Foundation of China(51406198) ; research project 'Sino-US Joint Research on CO2 Capture and Storage'(2013DFB60140-03) ; research project 'Development of calcium oxide - based CO2 absorbent'(CG1317)
Language: 英语
WOS ID: WOS:000363090000013
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112297
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Res Ctr Clean Energy & Power, Lianyungang 222069, Jiangsu, Peoples R China
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