New Composite Sorbents for Solar-Driven Technology of Fresh Water Production From the Atmosphere

Aristov, Yu. I.; Tokarev, M. M.; Gordeeva, Larisa G.; Снытников, В. Н.; Parmon, Valentin N.

doi:10.1016/s0038-092x(98)00110-8

Cited by 89 publications

(20 citation statements)

References 3 publications

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“…In fact, the composites "salt inside porous matrix" (so called, Selective Water Sorbents, SWSs) appeared to possess advanced sorption properties, low regeneration temperature and thus are promising for various applications such as the drying of air and other gases, low temperature heat storage, adsorption heat pumps, etc. (Aristov et al 1999(Aristov et al , 2000Tokarev et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Sorption equilibrium of methanol on new composite sorbents “CaCl2/silica gel”

et al. 2007

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This paper presents experimental data on methanol sorption on new composite sorbents which consist of mesoporous silica gels and calcium chloride confined to their pores. Sorption isobars and XRD analysis showed the formation of a solid crystalline solvate CaCl 2 ·2MeOH at low methanol uptake, while at higher uptake the formation of the CaCl 2 -methanol solution occurred. The solution confined to the silica pores showed the sorption properties similar to those of the CaCl 2 -methanol bulk solution. Calorimetric and isosteric analyses showed that the heat of methanol sorption depends on the methanol uptake, ranging from 38 ± 2 kJ/mol for the solution to 81 ± 4 kJ/mol for the solid crystalline phase CaCl 2 ·2MeOH. The above mentioned characterizations allowed the evaluation of the methanol sorption and the energy storage capacities, clearly showing that the optimal applications of these new composite sorbents are the methanol removal from gaseous mixtures, heat storage and sorption cooling driven by low temperature heat.

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Section: Introductionmentioning

confidence: 99%

Sorption equilibrium of methanol on new composite sorbents “CaCl2/silica gel”

et al. 2007

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“…Selective water sorbents developed at the Boreskov Institute of Catalysis (Novosibirsk, Russia) for fresh water production from the atmosphere are reported by Aristov et al [21]. The results of their lab-scale tests have demonstrated a feasibility of fresh water production with an output of 3-5 tones of water per 10 tones of the dry sorbent per day.…”

Section: Literature Review Of Systems and Technologies For Extractingmentioning

confidence: 96%

Application of Solar Energy for Recovery of Water from Atmospheric Air in Climatic Zones of Saudi Arabia

Hamed¹,

Aly²,

Zeidan³

2011

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In the present work, an investigation on the application of solar energy to heat a sandy bed impregnated with calcium chloride for recovery of water from atmospheric air is presented. The study also aimed at evaluating the effects of different parameters on the productivity of the system during regeneration. These parameters include system design characteristics and the climatic conditions. An experimental unit has been designed and installed for this purpose in climatic conditions of Taif area, Saudi Arabia. The experimental unit which has a surface area of 0.5 m2, comprises a solar/desiccant collector unit containing sandy bed impregnated with calcium chloride. The sandy layer impregnated with desiccant is subjected to ambient atmosphere to absorb water vapor in the night. During the sunshine period, the layer is covered with glass layer where desiccant is regenerated and water vapor is condensed on the glass surface. Ambient temperature, bed temperature and temperature of glass surface are recorded. Also, the productivity of the system has been evaluated. Desiccant concentration at start of regeneration is selected on the basis of the climatic data of Al-Hada region, which is located at Taif area, Saudi Arabia. Experimental measurements show that about 1.0 liter per m2 of pure water can be regenerated from the desiccant bed at the climatic conditions of Taif. Liquid desiccant with initial concentration of 30% can be regenerated to a final concentration of about 44%. Desiccant concentration at start of regeneration is selected on the basis of the climatic data of Al-Hada region. The climate of Taif city is dry compared with that for Al-Hada region. This method for extracting water from atmospheric air is more suitable for Al-Hada region especially in the fall and winter

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“…In more advanced systems, sorbents (see [117,[128][129][130][131]146]) are used to facilitate the cycle of capturing the condensation, and then to releasing the condensation.…”

Section: Solar Stillsmentioning

confidence: 99%