Water vapor in an air stream is to be adsorbed in a 12.06-cm-i.d. column packed with 3.3-mm-diameter Alcoa F-200 activatedalumina beads of external porosity of 0.442. At a location in the bed where the pressure is 653.3 kPa, temperature is 21C, gas flow rate is 1.327 kg/minute, and dew-point temperature is 11.2C, estimate the effective diffusivity of water vapor in the pores of activated alumina with the following properties: ρp=1.38 g/cm3 , ϵp =0.52, average dp =60 A , and tortuosity = 2.3. Consider all mechanisms of diffusion except surface diffusion.
Water vapor in an air stream is to be adsorbed in a 12.06-cm-i.d. column packed with 3.3-mm-diameter Alcoa F-200 activatedalumina beads of external porosity of 0.442. At a location in the bed where the pressure is 653.3 kPa, temperature is 21C, gas flow rate is 1.327 kg/minute, and dew-point temperature is 11.2C, estimate the effective diffusivity of water vapor in the pores of activated alumina with the following properties: ρp=1.38 g/cm3 , ϵp =0.52, average dp =60 A , and tortuosity = 2.3. Consider all mechanisms of diffusion except surface diffusion.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Water vapor in an air stream is to be adsorbed in a 12.06-cm-i.d. column packed with 3.3-mm-diameter Alcoa F-200 activatedalumina beads of external porosity of 0.442. At a location in the bed where the pressure is 653.3 kPa, temperature is 21C, gas flow rate is 1.327 kg/minute, and dew-point temperature is 11.2C, estimate the effective diffusivity of water vapor in the pores of activated alumina with the following properties: ρp=1.38 g/cm3 , ϵp =0.52, average dp =60 A , and tortuosity = 2.3. Consider all
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