MIL-160 as an Adsorbent for Atmospheric Water Harvesting

Marina Solovyeva, Irina Krivosheeva, Larisa Gordeeva and Yuri Aristov
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Marina Solovyeva: Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, 630055 Novosiborsk, Russia
Irina Krivosheeva: Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, 630055 Novosiborsk, Russia
Larisa Gordeeva: Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, 630055 Novosiborsk, Russia
Yuri Aristov: Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, 630055 Novosiborsk, Russia

Energies, 2021, vol. 14, issue 12, 1-15

Abstract: Nowadays, the rapidly growing population, climate change, and environment pollution put heavy pressure on fresh water resources. The atmosphere is the immense worldwide and available water source. The Adsorptive Water Harvesting from the Atmosphere (AWHA) method is considered a promising alternative to desalination technologies for remote arid regions. The development of novel adsorbents with advanced water-adsorption properties is a prerequisite for practical realization of this method. Metal–organic frameworks (MOFs) are a novel class of porous crystalline solids that bring a great potential for AWHA due to their extremely high specific surface area, porosity, and tailored adsorption properties. This work addresses MIL-160 as a water adsorbent for AWHA. The water-adsorption equilibrium of MIL-160 was studied by volumetric method, the isosteric heat of adsorption was calculated, and finally, the potential of MIL-160 for AWHA was evaluated for climatic conditions of the deserts of Saudi Arabia, Mongolia, the Sahara, Atacama, and Mojave as reference arid regions. MIL-160 was shown to ensure a maximum specific water productivity of 0.31–0.33 g H2O /g ads per cycle. High fractions of water extracted (0.90–0.98) and collected (0.48–0.97) could be achieved at a regeneration temperature of 80 °C with natural cooling of the condenser by ambient air. The specific energy consumption for water production varied from 3.5 to 6.8 kJ/g, which is acceptable if solar heat is used to drive the desorption. The AWHA method employing MIL-160 is a promising way to achieve a fresh water supply in remote arid areas.

Keywords: adsorptive water harvesting from the atmosphere; metal–organic frameworks; MIL-160; water vapor adsorption; specific water productivity; specific energy consumption (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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