| 负载型K2CO3/Al2O3二氧化碳吸收剂的碳酸化反应特性 |
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| 引用本文： | 赵传文,陈晓平,赵长遂.负载型K2CO3/Al2O3二氧化碳吸收剂的碳酸化反应特性[J].化工学报,2009,60(4):1022-1027. |
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| 作者姓名： | 赵传文 陈晓平 赵长遂 |
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| 作者单位： | 东南大学能源与环境学院，江苏 南京 210096 |
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| 摘 要： | The carbonation characteristics of K2CO3/Al2O3 supported sorbent for CO2 capture was investigated with thermogravimetric apparatus（TGA），X-ray diffraction（XRD），scanning electron microscopy analysis（SEM）and N2 adsorption.The results showed that the carbonation rate of K2CO3 before being loaded on Al2O3 was slow.However，the K2CO3/Al2O3 upported sorbent showed excellent carbonation performance.The difference in carbonation behavior between K2CO3 nd K2CO3/Al2O3 supported sorbent was analyzed from the microscopic view.The analytical reagent K2CO3 sample was of monoclinic crystal structure and could react quickly with H2O in the experimental carbonation environment to produce K2CO3•1.5H2O，which was unfavorable to carbonation reaction.When K2CO3was loaded on Al2O3，the surface area and porosity of the sorbent was improved greatly.So the carbonation properties of the K2CO3/Al2O3 supported sorbent was also improved.
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| 关 键 词： | CO2捕集 固体吸收剂 K2CO3/Al2O3 碳酸化反应 |
| 收稿时间： | 2008-11-19 |
| 修稿时间： | 2008-12-26
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Carbonation characteristics of K2CO3/Al2O3 for CO2 capture |
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| ZHAO Chuanwen,CHEN Xiaoping,ZHAO Changsui.Carbonation characteristics of K2CO3/Al2O3 for CO2 capture[J].Journal of Chemical Industry and Engineering(China),2009,60(4):1022-1027. |
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| Authors: | ZHAO Chuanwen CHEN Xiaoping ZHAO Changsui |
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| Abstract: | The carbonation characteristics of K2CO3/Al2O3 supported sorbent for CO2 capture was investigated with thermogravimetric apparatus（TGA），X-ray diffraction（XRD），scanning electron microscopy analysis（SEM）and N2 adsorption.The results showed that the carbonation rate of K2CO3 before being loaded on Al2O3 was slow.However，the K2CO3/Al2O3 upported sorbent showed excellent carbonation performance.The difference in carbonation behavior between K2CO3 nd K2CO3/Al2O3 supported sorbent was analyzed from the microscopic view.The analytical reagent K2CO3 sample was of monoclinic crystal structure and could react quickly with H2O in the experimental carbonation environment to produce K2CO3•1.5H2O，which was unfavorable to carbonation reaction.When K2CO3was loaded on Al2O3，the surface area and porosity of the sorbent was improved greatly.So the carbonation properties of the K2CO3/Al2O3 supported sorbent was also improved. |
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| Keywords: | CO2 capture solid sorbent K2CO3/Al2O3 carbonation reaction |
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