Adsorption of ethanol onto phenol resin based adsorbents for developing next generation cooling systems

Abstract Adsorption characteristics of ethanol onto two promising adsorbents have been investigated for developing high performance adsorption chillers. These new adsorbents are based on spherical phenol resin treated with different mass ratios of KOH named as KOH4-PR and KOH6-PR. Experimental adsorption isotherm measurements show that the adsorption capacity of KOH4-PR/ethanol is as high as 1.43 kg kg −1 whilst one kg of KOH6-PR able to adsorb nearly about 2 kg of ethanol. To the best of our knowledge, the studied adsorbents possess the highest ethanol uptake. Moreover, it is found that the KOH4-PR/ethanol pair has notably high adsorption kinetics at the lower range of adsorption temperatures. Experimental measurements of adsorption uptake and adsorption uptake rate of the studied pairs have been analyzed and isosteric heats of adsorption have also been extracted.

[1]  K. A. Jackson.  Mathematics of Diffusion , 2005 .

[2]  H. Henning,et al.  Evaluation of methanol adsorption on activated carbons for thermally driven chillers part I: Thermophysical characterisation , 2012 .

[3]  Yuri I. Aristov,et al.  Adsorptive transformation of heat: Principles of construction of adsorbents database , 2012 .

[4]  Bidyut Baran Saha,et al.  Carbon Dioxide Adsorption Isotherms on Activated Carbons , 2011 .

[5]  Kim Choon Ng,et al.  Experimental investigation of activated carbon fibers/ethanol pairs for adsorption cooling system application , 2006 .

[6]  Ruzhu Wang,et al.  Adsorption Characteristic of Methanol in Activated Carbon Impregnated with Lithium Chloride , 2010 .

[7]  B. Choudhury,et al.  Review paper on solar-powered air-conditioning through adsorption route , 2010 .

[8]  G. Cacciola,et al.  A family of new working materials for solid sorption air conditioning systems , 2002 .

[9]  Ibrahim I. El-Sharkawy,et al.  Adsorption characteristics and heat of adsorption measurements of R-134a on activated carbon , 2009 .

[10]  Zacharie Tamainot-Telto,et al.  Carbon-ammonia pairs for adsorption refrigeration applications: ice making, air conditioning and heat pumping , 2009 .

[11]  Bidyut Baran Saha,et al.  Potential application of solar powered adsorption cooling systems in the Middle East , 2014 .

[12]  R. E. Critoph,et al.  Accurate adsorption isotherms of R134a onto activated carbons for cooling and freezing applications , 2012 .

[13]  Ibrahim I. El-Sharkawy,et al.  Adsorption of ethanol onto parent and surface treated activated carbon powders , 2014 .

[14]  Derek K. Baker,et al.  Adsorption properties of a natural zeolite–water pair for use in adsorption cooling cycles , 2010 .

[15]  Yuri I. Aristov,et al.  Dynamic study of methanol adsorption on activated carbon ACM-35.4 for enhancing the specific cooling power of adsorptive chillers , 2014 .

[16]  Kim Choon Ng,et al.  Adsorption Characteristics of Silica Gel + Water Systems , 2002 .

[17]  H. Henning,et al.  Water adsorption characteristics of novel materials for heat transformation applications , 2010 .

[18]  S. Rutherford,et al.  Equilibrium and kinetics of water adsorption in carbon molecular sieve: theory and experiment. , 2004, Langmuir : the ACS journal of surfaces and colloids.

[19]  Ibrahim I. El-Sharkawy,et al.  Adsorption characteristics of ethanol onto functional activated carbons with controlled oxygen content , 2014 .

[20]  F. Meunier,et al.  Thermodynamic performance improvement of an intermittent solar-powered refrigeration cycle using adsorption of methanol on activated carbon , 1986 .

[21]  S. Rutherford,et al.  Adsorption dynamics of carbon dioxide in molecular sieving carbon , 2003 .

[22]  Bidyut Baran Saha,et al.  Study on adsorption of methanol onto carbon based adsorbents , 2009 .

[23]  Ruzhu Wang,et al.  Study on a New Solid Absorption Refrigeration Pair: Active Carbon Fiber—Methanol , 1997 .

[24]  Douglas M. Ruthven,et al.  Diffusion of oxygen and nitrogen in carbon molecular sieve , 1992 .

[25]  Douglas M. Ruthven,et al.  Principles of Adsorption and Adsorption Processes , 1984 .