Hydrolytically stable fluorinated metal-organic frameworks for energy-efficient dehydration

Amandine Cadiau, Youssef Belmabkhout, Karim Adil, Prashant Bhatt, Renjith S. Pillai, Aleksander Shkurenko, Charlotte Martineau-Corcos, Guillaume Maurin, Mohamed Eddaoudi

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

Natural gas must be dehydrated before it can be transported and used, but conventional drying agents such as activated alumina or inorganic molecular sieves require an energy-intensive desiccant-regeneration step. We report a hydrolytically stable fluorinated metal-organic framework, AlFFIVE-1-Ni (KAUST-8), with a periodic array of open metal coordination sites and fluorine moieties within the contracted square-shaped one-dimensional channel. This material selectively removed water vapor from gas streams containing CO2, N2, CH4, and higher hydrocarbons typical of natural gas, as well as selectively removed both H2O and CO2 in N2-containing streams. The complete desorption of the adsorbed water molecules contained by the AlFFIVE-1-Ni sorbent requires relatively moderate temperature (~105°C) and about half the energy input for commonly used desiccants.
Original languageEnglish (US)
Pages (from-to)731-735
Number of pages5
JournalScience
Volume356
Issue number6339
DOIs
StatePublished - May 18 2017

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