✦ LIBER ✦

New adsorption-condensation theory for adsorption of vapors on porous activated carbons

✍ Scribed by Shivaji Sircar

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 872 KB
Volume: 25
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(87)90038-8

No coin nor oath required. For personal study only.

✦ Synopsis

A

new analytical model to describe equilibrium adsorption of condensable vapors on porous adsorbents is developed. It accounts for the heterogeneous pore structure of the adsorbent, adsorption in the micropores by a pore filling mechanism and adsorption and condensation in the macropores. A gamma-type pore size distribution function is used. Langmuir-type adsorption equations are used to describe both micropore filling and adsorption on the macropore walls. The vapor condensation in the pores is described by the Kelvin equation. The model is successfully tested using isotherm data for adsorption of various condensable vapors on different porous activated carbons and charcoals. All three types (I, IV and V) of adsorption isotherms by the Brunauer classification which are depicted by the porous adsorbents can be described by the model.

📜 SIMILAR VOLUMES

Adsorption rate coefficients for gases a

Adsorption rate coefficients for gases and vapors on activated carbons

✍ Gerry O. Wood; J.F. Stampfer 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 624 KB

In order to estimate carbon bed breakthrough time (service life) for a given gas or vapor which is removed from flowing air by physical adsorption, both the adsorption capacity and adsorption rate need to be known. These parameters are available for only a small number of compounds at limited sets o

108. Theory of water adsorption on activ

108. Theory of water adsorption on activated carbons

✍ A.J. Juhola 📂 Article 📅 1982 🏛 Elsevier Science 🌐 English ⚖ 129 KB

Anomalous mass transfer for vapor adsorp

Anomalous mass transfer for vapor adsorption on activated carbon

✍ William L. Klotz; Ronald W. Rousseau 📂 Article 📅 1988 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 339 KB 👁 2 views

Adsorption of water vapor on BPL activat

Adsorption of water vapor on BPL activated carbon

✍ N.M. Hassan; T.K. Ghosh; A.L. Hines; S.K. Loyalka 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 254 KB

A number of studies have been reported in the literature related to the water vapor adsorption mechanism on by Calgon Carbon Corporation. The equilibrium carbonaceous materials and the influence of pore adsorption data are plotted in Figure 1, where the open structure on adsorption capacity. Often

Prediction of adsorption rate constants

Prediction of adsorption rate constants of activated carbon for various vapors

✍ L.A. Jonas; Y.B. Tewari; E.B. Sansone 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 478 KB

%n the past decade, a theoretical calcxilatim of the adsorption properties of activated carbon has successfully been used to predict the adsorption capacity for untested vapors after initial characterization of the carbon with a reference vapor. However, using this theoretical approach, it has not b

Fractal Approach to Adsorption Isotherms

Fractal Approach to Adsorption Isotherms of Water Vapor on Active Carbons

✍ Ryoichi Tsunoda 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 97 KB

Adsorption isotherms of water vapor on active carbons are interpreted in terms of the fractal approach. The linear range of plots in the steep rise of the adsorption branch is the process of the cluster formation of water on the seed water molecules adsorbed on the primary adsorption centers, mainly