Experimental and theoretical studies on the influence of ionic liquids as additives on ammonia-based CO2 capture
Experimental and theoretical studies on the influence of ionic liquids as additives on ammonia-based CO2 capture
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离子液体作为添加剂对氨基CO2捕集影响的实验和理论研究
DOI：
10.1016/j.ijggc.2015.08.023
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发表时间：
2015-11
影响因子：
3.9
通讯作者：
Baosheng Jin
中科院分区：
文献类型：
--
作者：
Yin Xu;Jie Zhao;Wei Wu;Baosheng Jin
氨基CO2捕集技术是传统胺基CO2捕集技术的一种很有前途的替代方案，但其高挥发性的特性阻碍了其应用。在这项工作中，我们从实验和理论上研究了六种离子液体的影响，即，[EtOHMim][PF 6]、[EtOHMim][BF 4]、[EtOHMim]Cl、[胆碱][PF 6]、[胆碱][BF 4]和[胆碱]Cl作为添加剂对氨基CO2捕集性能的影响。实验结果表明，离子液体添加剂的加入显著降低了氨的损失，同时提高了CO2的去除效率。通过比较发现，对于相同阳离子的添加剂，其CO2去除效率的顺序为：[PF 6]-> [BF 4]-> [Cl]-。而在相同阴离子条件下，[Choline]+对NH3损失的抑制效果优于[EtOHMIM]+。从分子间相互作用角度进行的量子计算表明，NH3与阳离子之间的氢键作用是NH3损失减少的主要原因，而CO2去除效率的提高则归因于CO2与阴离子之间的货车范德华力.这些实验和理论研究结果为有效提高氨基CO2捕集器的性能提供了潜在的途径和指导，具有良好的工业应用前景。
Ammonia-based CO2capture is a promising alternative to traditional amine-based CO2capture, but its application is hindered by the nature of high volatility. In this work, we experimentally and theoretically investigated the influence of six ionic liquids, i.e., [EtOHMim][PF6], [EtOHMim][BF4], [EtOHMim]Cl, [Choline][PF6], [Choline][BF4] and [Choline]Cl, as additives on the performance of ammonia-based CO2capture. The experimental results showed the addition of ionic liquid additives significantly reduced the ammonia loss and, meanwhile, enhanced the CO2removal efficiency. By comparison, for the additives with the same cation, the CO2removal efficiency was promoted as the sequence: [PF6]−> [BF4]−> [Cl]−. However, at the condition of the same anion, [Choline]+exhibited better performance than [EtOHMIM]+on the inhibition of NH3loss. Furthermore, quantum calculation from the aspect of intermolecular interaction revealed that the hydrogen bonding between NH3and cations should be responsible for the NH3loss reduction, whereas the promotion of CO2removal efficiency was ascribed to the van der Waals forces combining CO2and anions. These experimental and theoretical findings provide a potential approach and guidance to effectively promote the performance of ammonia-based CO2capture and would be promising in further industrial application.
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影响因子：
3.9
作者：
V. Darde;W. V. Well;Philip L. Fosboel;E. Stenby;K. Thomsen
通讯作者：
V. Darde;W. V. Well;Philip L. Fosboel;E. Stenby;K. Thomsen
氨法碳捕集过程中添加剂抑制氨逃逸的实验研究
影响因子：
3.9
作者：
Shuangchen, Ma;Huihui, Song;Bin, Zang;Gongda, Chen
通讯作者：
Gongda, Chen
影响因子：
6.9
作者：
Jong-Beom Seo;Soo-Bin Jeon;Je-young Kim;Gang-woo Lee;Jong-hyeon Jung;K. Oh
通讯作者：
Jong-Beom Seo;Soo-Bin Jeon;Je-young Kim;Gang-woo Lee;Jong-hyeon Jung;K. Oh
影响因子：
3.9
作者：
Bingtao Zhao;Yaxin Su;Wenwen Tao;Leilei Li;Yuanchang Peng
通讯作者：
Bingtao Zhao;Yaxin Su;Wenwen Tao;Leilei Li;Yuanchang Peng
影响因子：
4.2
作者：
Pinto, Alicia M.;Rodriguez, Hector;Soto, Ana
通讯作者：
Soto, Ana