Preparation and application of magnesium-based CO<sub>2</sub> sorbent for temperature swing absorption I.Na/Mg mol ratio

ZUO Chen-sheng; Zhou Si-yu; SUN Cheng-zhi; WANG Xing-zhi; LIU Dao-sheng; SEO Hwi-min; PARK Yong-ki; GUI Jian-zhou; LIU Dan

Volume 42 Issue 07

Jul. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(07): 884-889

ZUO Chen-sheng, Zhou Si-yu, SUN Cheng-zhi, WANG Xing-zhi, LIU Dao-sheng, SEO Hwi-min, PARK Yong-ki, GUI Jian-zhou, LIU Dan. Preparation and application of magnesium-based CO2 sorbent for temperature swing absorption I.Na/Mg mol ratio[J]. Journal of Fuel Chemistry and Technology, 2014, 42(07): 884-889.

Citation:

ZUO Chen-sheng, Zhou Si-yu, SUN Cheng-zhi, WANG Xing-zhi, LIU Dao-sheng, SEO Hwi-min, PARK Yong-ki, GUI Jian-zhou, LIU Dan. Preparation and application of magnesium-based CO₂ sorbent for temperature swing absorption I.Na/Mg mol ratio[J]. Journal of Fuel Chemistry and Technology, 2014, 42(07): 884-889.

Citation:

ZUO Chen-sheng, Zhou Si-yu, SUN Cheng-zhi, WANG Xing-zhi, LIU Dao-sheng, SEO Hwi-min, PARK Yong-ki, GUI Jian-zhou, LIU Dan. Preparation and application of magnesium-based CO₂ sorbent for temperature swing absorption I.Na/Mg mol ratio[J]. Journal of Fuel Chemistry and Technology, 2014, 42(07): 884-889.

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Preparation and application of magnesium-based CO₂ sorbent for temperature swing absorption I.Na/Mg mol ratio

1.
Division of Chemistry, Chemical Engineering and Environment, Liaoning Shihua University, Fushun 113001, China;
2.
Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea;
3.
School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China

Received Date: 2013-12-16
Rev Recd Date: 2014-03-21
Publish Date: 2014-07-30

Abstract

Abstract

A series of magnesium-based CO₂ absorbents with different Na/Mg molar ratios were prepared by precipitation method with Mg(NO₃)₂ and Na₂CO₃ as raw materials, and characterized by various methods (including XRD, SEM-EDS and DTG) to study the compositions, morphology and decomposition temperature and so on. The CO₂ absorption performance was evaluated by temperature swing absorption-desorption dynamic cyclic tests to check the impact of Na/Mg molar ratio. It can be seen that optimum molecular ratio of Na to Mg is 8.15, and the sorbents is homogeneous with lower decomposition temperature caused by small particles of the sample, and initial CO₂ adsorption capacity can reach 9.584%. Good recycling capability can be obtained as well. Compared with the initial absorption capacity, there was only 4.2% decrease after 20 recycles.
- magnesium-based absorbent,
- CO₂,
- temperature swing absorption

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References(24)

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