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Progress and outlook for capacitive deionization technology
Current Opinion in Chemical Engineering ( IF 6.6 ) Pub Date : 2019-08-01 , DOI: 10.1016/j.coche.2019.06.006
James Landon , Xin Gao , Ayokunle Omosebi , Kunlei Liu

Capacitive deionization (CDI), an emerging desalination technology, has received considerable attention in recent years due to porous carbon development, new cell designs, and unique operational modes providing higher performance for capacitance-based salt removal. The energy cost of this separation process has also been rigorously evaluated through a variety of efficiency calculations, and direct comparisons are now being made with more conventional membrane-based separation systems. Currently, the thermodynamic energy efficiency (TEE) of CDI is quite low with values typically below 5%, although there are examples where this efficiency can reach 10% or higher under the proper conditions. As the development of CDI and analogous capacitive processes continue, the TEE should remain a metric for comparison to conventional techniques. In addition, the ability of CDI to perform selective separations for trace compounds, resource recovery, and contaminant removal should be more heavily investigated.



中文翻译:

电容去离子技术的进展与展望

电容去离子(CDI)是一种新兴的海水淡化技术,近年来由于多孔碳的开发,新型电池设计以及独特的操作模式(为基于电容的除盐性能提供了更高的性能)而备受关注。还已经通过各种效率计算来严格评估此分离过程的能源成本,并且现在正在与更常规的基于膜的分离系统进行直接比较。目前,CDI的热力学能量效率(TEE)相当低,通常低于5%,尽管在某些情况下,在适当条件下,该效率可以达到10%或更高。随着CDI和类似电容工艺的发展,TEE应该仍然是与传统技术进行比较的指标。此外,

更新日期:2019-08-01
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