Adsorption Isotherms and Isosteric Enthalpy of Adsorption for Assorted Refrigerants on Activated Carbons

作者：Loh Wai Soong; Bin Ismail Azhar; Xi Baojuan; Ng Kim Choon^*; Chun Won Gee

来源：Journal of Chemical and Engineering Data, 2012, 57(10): 2766-2773.

DOI：10.1021/je3008099

This paper features the adsorption equilibria of refrigerants R134a, R290, R410a, and R507a on microporous activated carbon samples at temperatures between 278 K and 338 K with pressures up to 1.4 MPa. The adsorption isotherm data are obtained by utilizing the constant-volume-variable-pressure (CVVP) approach and analyzed using the Dubinin-Ashtakov (DA) model. The regressed adsorption parameters acquired by using this model produces isotherm curves that agree within 5 % of the experimental results. The concentration- and temperature-dependent enthalpies of adsorption of these pairs are evaluated and presented.

• 出版日期2012-10