Adsorptive processes using “large-pore” materials: analysis of a criterion for equivalence of diffusion—convection, “apparent” diffusion and “extended” linear driving force models
✍ Scribed by Anabela Leitão; Alírio Rodrigues
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 598 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0923-0467
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✦ Synopsis
The mtrapacle dlffuslon-convectlon model 1s apphed to simulate adsorptive processes using "large-pore' ' adsorbent particles In this work, we analyse the feaslbihty of a cntenon for the eqmvalence of this difficult and computation time consummg model to simpler models the "apparent" diffusion model and an "extended" linear dnvmg force (LDF) model It 1s shown that the "extended" LDF model predicts reasonably well adsorption breakthrough curves m fixed beds, for different equlhbnum isotherms, using a A (mtrapartlcle P&let number) dependent "augmented" overall mass transfer coefficient between bulk flmd and particles Keywords "Large-pore" matenals, Intrapartlcle convectlon, "Extended" hear dnvmg force model