Simulation and optimization of pressure-swing adsorption systems for air separation

AIChE Journal ◽  
2003 ◽  
Vol 49 (5) ◽  
pp. 1140-1157 ◽  
Author(s):  
Ling Jiang ◽  
Lorenz T. Biegler ◽  
V. Grant Fox
Keyword(s):  
Pressure Swing Adsorption ◽  
Air Separation ◽  
Simulation And Optimization ◽  
Pressure Swing ◽  
Adsorption Systems

Heat effects in pressure swing adsorption systems

1988 ◽  
Vol 43 (5) ◽  
pp. 1017-1031 ◽  
Author(s):  
S. Farooq ◽  
M.M. Hassan ◽  
D.M. Ruthven
Keyword(s):  
Pressure Swing Adsorption ◽  
Heat Effects ◽  
Pressure Swing ◽  
Adsorption Systems

Numerical Analysis and Optimization of Oxygen Separation from Air via Pressure Swing Adsorption

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Seyyed M. Ghoreishi ◽  
Z. Hoseini Dastgerdi ◽  
Ali A Dadkhah
Keyword(s):  
Time Constant ◽  
Pressure Swing Adsorption ◽  
Separation Efficiency ◽  
Optimization Procedure ◽  
Air Separation ◽  
Oxygen Separation ◽  
13X Zeolite ◽  
Oxygen Generation ◽  
Pressure Swing ◽  
Energy And Momentum

A pressure swing adsorption air separation process in a commercial aircraft using 13X zeolite with a more complex cycle than the classic Skarstrom was simulated via a predictive dynamic model to evaluate and optimize oxygen generation system. The coupled mass, energy, and momentum differential equations were discretized using the implicit central finite-difference technique and the obtained equations were solved by Newton-Raphson method. The validated model in conjunction with an optimization procedure (Successive Quadratic Programming) was utilized to investigate the oxygen separation efficiency as a function of β (ratio between the bed time constant and the particle diffusion time constant), Cfp (purge orifice coefficient), θcycle (cycle time), Cff (feed valve), Cfe (exhaust valve) and pH* (high pressure operation). A set of optimum values (β=150, Cfp=0.7, θcycle=1.5, Cff=31, Cfe=52 and pH*=3.8) was obtained and recommended to achieve maximum recovery (0.26) at 98% purity.

scholarly journals A Method for the Determination of Composition Profiles in Industrial Air Separation, Pressure Swing Adsorption Systems

2003 ◽  
Vol 21 (1) ◽  
pp. 35-52 ◽  
Author(s):  
C.C.K. Beh ◽  
P.A. Webley
Keyword(s):  
Energy Balance Equation ◽  
Nitrogen Loading ◽  
Air Separation ◽  
Local Pressure ◽  
Vacuum Swing Adsorption ◽  
Adsorbed Phase ◽  
Composition Profiles ◽  
Pressure Swing ◽  
Monitoring And Diagnostics ◽  
Adsorption Systems

A simplified energy-balance equation has been proposed as an aid to online measurement of the adsorbed-phase nitrogen loading in industrial-scale pressure and vacuum swing adsorption systems consisting of one preferentially adsorbed component. Implementation of this technique to current and future plants requires the addition of thermocouples (which are relatively inexpensive) located axially through the bed and pressure transmitters at the bottom and top of the bed. This methodology has the advantage that the composition front may be inferred accurately from direct measurements of the local pressure and temperature, and used as the basis for process monitoring and diagnostics of plant purity, recovery and production rate.

Short-cut evaluation of pressure swing adsorption systems

1998 ◽  
Vol 22 ◽  
pp. S637-S640 ◽  
Author(s):  
Yonsoo Chung ◽  
Byung-Ki Na ◽  
Hyung Keun Song
Keyword(s):  
Pressure Swing Adsorption ◽  
Pressure Swing ◽  
Adsorption Systems
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