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Ethanol adsorption onto metal organic framework: Theory and experiments

 
: Saha, B.B.; El-Sharkawy, I.I.; Miyazaki, T.; Koyama, S.; Henninger, S.K.; Herbst, A.; Janiak, C.

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Energy 79 (2015), pp.363-370
ISSN: 0360-5442
English
Journal Article
Fraunhofer ISE ()
Thermische Anlagen und Gebäudetechnik; energieeffizientes Gebäude; Servicebereiche; Elektrische und thermische Wärmepumpen; Wärmeübertragung in gebäudetechnischen Anlagen; Kühlung und Klimatisierung von Gebäuden; Prüflabor für Adsorptionsmaterialien und poröse Materialien

Abstract
This paper presents experimental and theoretical investigations of adsorption characteristics of ethanol onto metal organic framework namely MIL-101Cr. Adsorption isotherms and kinetics of the studied pair have been measured gravimetrically using a magnetic suspension adsorption measurement unit and volumetrically employing a Quantachrome Autosorb iQ MP machine. The present experiments have been conducted within relative pressures between 0.1 and 0.9 and adsorption temperatures ranging from 30 to 70 degrees C, which are suitable for adsorption cooling applications. Adsorption isotherm data exhibit that 1 kg of MIL-101Cr can adsorb as high as 1.1 kg of ethanol at adsorption temperature of 30 degrees C, and the Toth equation has been used to fit the experimentally measured data. As of the experimentally measured adsorption uptake rate data, the Fickian diffusion model is found to be suitable. These data are essential for designing a new generation of adsorption chiller.

: http://publica.fraunhofer.de/documents/N-332063.html