| 负载型钾基CO2吸收剂的结构表征和碳酸化反应特性 |
| |
| 引用本文： | 赵传文,陈晓平,赵长遂.负载型钾基CO2吸收剂的结构表征和碳酸化反应特性[J].化工学报,2009,60(7):1800-1805. |
| |
| 作者姓名： | 赵传文 陈晓平 赵长遂 |
| |
| 作者单位： | 东南大学能源与环境学院 |
| |
| 摘 要： | The structure identification and carbonation characteristics of several potassium-based supported sorbents for CO2 capture were investigated with TGA，XRD，XRF，SEM and N2 adsorption method.Potassium-based sorbents were prepared by impregnation with potassium carbonate on supports，such as cocoanut activated charcoal（AC1），coal active carbon（AC2），silica gel（SG）and diatomite（DT）using the iso-volume impregnation method.The results showed that the K2CO3 loading amounts of AC1，AC2，SG and DT were 24.1%，22.5%，21.7% and 19.1% respectively.The surface area and pore volume of K2CO3/AC1 and K2CO3/AC2 were larger than others.In contrast，those of K2CO3/DT were small.For K2CO3/SG，pore volume was large but surface area was small.K2CO3/AC1 and K2CO3/AC2 showed excellent carbonation capacity.However，the carbonation capacities of K2CO3/SG and K2CO3/DT were low.The difference in carbonation capacity of those sorbents were attributed to the difference in pore structure，leading to different supported sorbents.
|
| 关 键 词： | CO2捕集 钾基吸收剂 碳酸化反应 孔隙结构 |
| 收稿时间： | 2009-1-8 |
| 修稿时间： | 2009-2-18
|
Structure and carbonation characteristics of dry potassium-based supported sorbent for CO2 capture |
| |
| ZHAO Chuanwen,CHEN Xiaoping,ZHAO Changsui.Structure and carbonation characteristics of dry potassium-based supported sorbent for CO2 capture[J].Journal of Chemical Industry and Engineering(China),2009,60(7):1800-1805. |
| |
| Authors: | ZHAO Chuanwen CHEN Xiaoping ZHAO Changsui |
| |
| Abstract: | The structure identification and carbonation characteristics of several potassium-based supported sorbents for CO2 capture were investigated with TGA，XRD，XRF，SEM and N2 adsorption method.Potassium-based sorbents were prepared by impregnation with potassium carbonate on supports，such as cocoanut activated charcoal（AC1），coal active carbon（AC2），silica gel（SG）and diatomite（DT）using the iso-volume impregnation method.The results showed that the K2CO3 loading amounts of AC1，AC2，SG and DT were 24.1%，22.5%，21.7% and 19.1% respectively.The surface area and pore volume of K2CO3/AC1 and K2CO3/AC2 were larger than others.In contrast，those of K2CO3/DT were small.For K2CO3/SG，pore volume was large but surface area was small.K2CO3/AC1 and K2CO3/AC2 showed excellent carbonation capacity.However，the carbonation capacities of K2CO3/SG and K2CO3/DT were low.The difference in carbonation capacity of those sorbents were attributed to the difference in pore structure，leading to different supported sorbents. |
| |
| Keywords: | CO2 capture potassium-based sorbent carbonation reaction pore structure |
|
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
