Vol. 5 (03) pp. 599-607 DOI: 10.21474/IJAR01/3549

EXPERIMENTAL STUDY ON SORPTION BEHAVIOR OF DESICCANTS

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  • Defence Research Laboratory, Tezpur -784001, Sonitpur, Assam, India.
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Abstract

Moisture removal from air is a practice that is beneficial to many applications. One of the methods to separate water vapor from air is by using desiccants. Present work depicts water vapor sorption behavior of CaCl2, Silica gel, Molecular sieve, Bentonite powder and Aluminum oxide desiccants. In comparison to open air conditions, superior water vapor sorption was exhibited by all the desiccants in closed glass casings containing water, due to availability of higher humidity. After 141 hours of absorption time, CaCl2 absorbed 36.2% of its weight in open air conditions and 43.1% due to availability of higher humidity in closed glass casings having water. In comparatively lower humidity conditions prevailing in open air conditions, Molecular sieve exhibited superior adsorption capability than Silica gel while inside closed glass casings, Silica gel overpowered Molecular sieve during the later half of adsorption process. Regeneration experiments for desiccants showed that 100% regeneration of Silica gel and CaCl2 could be obtained when heated to around 117.5?C and 134?C respectively for 5 hours. LiCl and Molecular sieve indicated 70.6% and 59.7% regeneration respectively when heated to 140°C.

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How to Cite This Article

Daya Lama, H. K. Gogoi and P. Sirinivas Raju. (2017); EXPERIMENTAL STUDY ON SORPTION BEHAVIOR OF DESICCANTS, Int. J. of Adv. Res., 5 (03), 599-607, ISSN 2320-5407. DOI: https://doi.org/10.21474/IJAR01/3549

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Daya Lama

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