Wet impregnation of a commercial low cost silica using DETA for a fast post-combustion CO2 capture process
Wet impregnation of a commercial low cost silica using DETA for a fast post-combustion CO2 capture process
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DOI：
10.1016/j.apenergy.2016.09.081
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发表时间：
2016-12
期刊：
影响因子：
11.2
通讯作者：
C. Martín;M. Sweatman;S. Brandani;Xianfeng Fan
中科院分区：
文献类型：
--
作者：
C. Martín;M. Sweatman;S. Brandani;Xianfeng Fan
这项工作提供了一种经济、简单的方法，通过将DETA浸渍到低成本、多孔的硅胶上，来制造低成本、但有效的二氧化碳捕集吸附剂。结果表明，低分子量胺浸渍的低成本硅胶性能稳定，在130℃以下性能良好，吸附动力学快，可在较低温度下再生。这将显著减少用于解吸二氧化碳的能源，从而减少能源惩罚。本文还报道了胺负载量对浸渍硅胶的织构性质、热稳定性和CO2捕集性能的影响。10%的胺负载量具有最好的孔隙率、稳定性和最高的吸附容量。
This work presents an economic and simple method to manufacture low cost, but effective adsorbents for CO2capture through impregnating DETA to a low cost, porous silica gel. The results have demonstrated that the low cost silica gel impregnated by low molecular-weight amine is stable and work very well at a temperature up to 130 °C. The developed adsorbent has a fast adsorption kinetics and can be regenerated at a low temperature. This will significantly reduce the energy used to desorb CO2, therefore the energy penalty. The effect of amine loading on the textural properties, thermal stability, and CO2capture performance of the impregnated silica gel is also reported in this paper. 10% amine loading gives the best porosity, stability and the highest adsorption capacity.