✦ LIBER ✦

Concentration dependence of surface diffusion coefficient of propionic acid in activated carbon particles

✍ Scribed by Motoyuki Suzuki; Takao Fujii

Publisher: American Institute of Chemical Engineers
Year: 1982
Tongue: English
Weight: 553 KB
Volume: 28
Category: Article
ISSN: 0001-1541
DOI: 10.1002/aic.690280303

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A Wicke Kallenbach type steady state diffusion experiment was performed for varying concentrations of propionic acid solution through activated carbon pellets. Since surface diffusion is a dominant mechanism, concentration dependence of the surface diffusion coefficient is precisely determined from the change of diffusion flux with concentration. Strong dependence of surface diffusion coefficient on amount adsorbed is partially interpreted in terms of the change of heat of adsorption with surface coverage as determined from separate equilibrium runs.

📜 SIMILAR VOLUMES

Transport of acid dye in nylon and conce

Transport of acid dye in nylon and concentration dependence of the diffusion coefficient

✍ Eizo Sada; Hidehiro Kumazawa; Shinichi Mizutani; Tetsuo Ando 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 439 KB 👁 2 views

The dyeing kinetics of an acid dye (C.I. Acid Blue 40) in a nylon 6 film were investigated using partition-cell and film-roll methods at 80°C and pHs 2.3 and 3.05. The concentration dependence of diffusion coefficient of the dye in the nylon substrate measured by both methods was interpreted in term

On the concentration dependence of diffu

On the concentration dependence of diffusion coefficients in zeolites

✍ D. Gelbin; K. Fiedler 📂 Article 📅 1980 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 360 KB 👁 2 views

Surface diffusion and adsorption of hydr

Surface diffusion and adsorption of hydrocarbons in activated carbon

✍ H. D. Do; D. D. Do; I. Prasetyo 📂 Article 📅 2001 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 289 KB 👁 2 views

Prediction of the concentration dependen

Prediction of the concentration dependence of diffusion coefficients of polymers in solution

✍ J. W. Qian; Alfred Rudin 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 413 KB 👁 3 views

Concentration dependence of diffusion co

Concentration dependence of diffusion coefficient of p-nitroaniline in poly(ethylene terephthalate) and polyamide

✍ Toshiro Iijima; Do Jing Chung 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 134 KB 👁 2 views

Film-surface diffusion during the adsorp

Film-surface diffusion during the adsorption of acid dyes onto activated carbon

✍ KKH Choy; JF Porter; G McKay 📂 Article 📅 2004 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 150 KB

## Abstract A mass transport model has been developed and applied to the adsorption of three acid dyes onto activated carbon in three single component systems. The mass transfer model is based on two rate controlling mass transfer steps, namely external film mass transfer and homogeneous solid‐phas