Numerical Study on the Contribution of Convective Mass Transfer Inside High-Porosity Adsorbents in the VOC Adsorption Process

2012 ◽  
Vol 22 (3) ◽  
pp. 551-558 ◽  
Author(s):  
Ge Zhang ◽  
Wenna He ◽  
Lei Fang ◽  
Fei Ma
Keyword(s):  
Mass Transfer ◽  
Adsorption Process ◽  
Numerical Study ◽  
High Porosity ◽  
Convective Mass Transfer ◽  
Voc Adsorption

scholarly journals The Experimental Study of the Kinetics of the Cyclic Adsorption Process of Air Enrichment with Oxygen

2021 ◽  
Vol 27 (3) ◽  
pp. 387-400
Author(s):  
E. I. Akulinin ◽  
D. S. Dvoretsky ◽  
S. I. Dvoretsky
Keyword(s):  
Mass Transfer ◽  
Adsorption Process ◽  
Numerical Study ◽  
Air Separation ◽  
Diffusion Resistance ◽  
Kinetic Regime ◽  
Atmospheric Air ◽  
Mass Conductivity ◽  
Cyclic Adsorption ◽  
Kinetics Of

For mass transfer cyclic processes in the “adsorptive - porous adsorbent” system when air is enriched with oxygen by the method of short-cycle heatless adsorption, a new method has been implemented for determining the coefficients of mass transfer and mass conductivity of processes in systems with a solid phase from kinetic curves. It has been experimentally proved that during the adsorption separation of atmospheric air, the rate of cyclic “adsorption - desorption” processes can be limited by both internal and external diffusion resistance. The mass conductivity coefficients are determined depending on the mass content of the distributed adsorptive (O2, N2) by a method that does not require the implementation of the intradiffusion kinetic regime. The analysis of the kinetics of the process of air enrichment with oxygen is carried out; the coefficients of mass transfer and mass conductivity, which can be used in kinetic calculations and numerical study of the properties and modes of the cyclic adsorption process of atmospheric air separation and oxygen concentration, are determined.

Experimental and numerical study of the convective mass transfer of solvent in the Expanding-Solvent SAGD process

Fuel ◽  
2018 ◽  
Vol 215 ◽  
pp. 298-311 ◽  
Author(s):  
Lin Meng ◽  
Dongqi Ji ◽  
Mingzhe Dong ◽  
Brij Maini
Keyword(s):  
Mass Transfer ◽  
Numerical Study ◽  
Convective Mass Transfer

Numerical study of transient free convective mass transfer in a Walters-B viscoelastic flow with wall suction

2011 ◽  
Vol 16 (1) ◽  
pp. 216-225 ◽  
Author(s):  
Tong-Bou Chang ◽  
A. Mehmood ◽  
O. Anwar Bég ◽  
M. Narahari ◽  
M.N. Islam ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Numerical Study ◽  
Viscoelastic Flow ◽  
Convective Mass Transfer ◽  
Wall Suction

Numerical Study of the Combined Free-Forced Convection and Mass Transfer Flow Past a Vertical Porous Plate in a Porous Medium with Heat Generation and Thermal Diffusion

2006 ◽  
Vol 11 (4) ◽  
pp. 331-343 ◽  
Author(s):  
M. S. Alam ◽  
M. M. Rahman ◽  
M. A. Samad
Keyword(s):  
Mass Transfer ◽  
Flow Field ◽  
Differential Equations ◽  
Forced Convection ◽  
Heat Generation ◽  
Numerical Study ◽  
Porous Plate ◽  
Integration Scheme ◽  
Suction Parameter ◽  
Transfer Flow

The problem of combined free-forced convection and mass transfer flow over a vertical porous flat plate, in presence of heat generation and thermaldiffusion, is studied numerically. The non-linear partial differential equations and their boundary conditions, describing the problem under consideration, are transformed into a system of ordinary differential equations by using usual similarity transformations. This system is solved numerically by applying Nachtsheim-Swigert shooting iteration technique together with Runge-Kutta sixth order integration scheme. The effects of suction parameter, heat generation parameter and Soret number are examined on the flow field of a hydrogen-air mixture as a non-chemical reacting fluid pair. The analysis of the obtained results showed that the flow field is significantly influenced by these parameters.

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