From an equilibrium based MOF adsorbent to a kinetic selective carbon molecular sieve for paraffin/iso-paraffin separation

Li, Baiyan; Belmabkhout, Youssef; Zhang, Yiming; Bhatt, Prashant; He, Hongming; Zhang, Daliang; Han, Yu; Eddaoudi, Mohamed; Perman, Jason A.; Ma, Shengqian

From an equilibrium based MOF adsorbent to a kinetic selective carbon molecular sieve for paraffin/iso-paraffin separation

Abstract

We unveil a unique kinetic driven separation material for selectively removing linear paraffins from iso-paraffins via a molecular sieving mechanism. Subsequent carbonization and thermal treatment of CD-MOF-2, the cyclodextrin metal-organic framework, afforded a carbon molecular sieve with a uniform and reduced pore size of ca. 5.0 Å, and it exhibited highly selective kinetic separation of n-butane and n-pentane from iso-butane and iso-pentane, respectively. © The Royal Society of Chemistry.

Citation

Li B, Belmabkhout Y, Zhang Y, Bhatt PM, He H, et al. (2016) From an equilibrium based MOF adsorbent to a kinetic selective carbon molecular sieve for paraffin/iso-paraffin separation. Chem Commun 52: 13897–13900. Available: http://dx.doi.org/10.1039/C6CC08008A.

Acknowledgements

The authors acknowledge the University of South Florida for financial support of this work. Y. B., P. M. B. and M. E. acknowledge the financial support of AMPM center collaborative funding CCF/1/1972-02-01 and CCF/1/1972-8-01. The authors thank Dr Zheng Niu, Kia Williams, and Dr Hui Yang for collecting the SEM images of CD-MOF-2.