Fractionated Vacuum Swing Adsorption Process for Air Separation

1993 ◽  
Vol 28 (17-18) ◽  
pp. 2553-2565 ◽  
Author(s):  
S. Sircarm ◽  
B. F. Hanley
Keyword(s):  
Adsorption Process ◽  
Air Separation ◽  
Vacuum Swing Adsorption

Simulation of a Fractionated Vacuum Swing Adsorption Process for Air Separation

1998 ◽  
Vol 33 (13) ◽  
pp. 2059-2073 ◽  
Author(s):  
Cheng-Tung Chou ◽  
Dou-Ming Ju ◽  
Shih-Chang Chang
Keyword(s):  
Adsorption Process ◽  
Air Separation ◽  
Vacuum Swing Adsorption

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.

scholarly journals The Dynamic Response and Characteristics of an Oxygen Vacuum Swing Adsorption Process to Step Perturbations. Part 1. Open Loop Responses

2003 ◽  
Vol 21 (4) ◽  
pp. 319-347 ◽  
Author(s):  
C.C.K. Beh ◽  
P.A. Webley
Keyword(s):  
Chemical Engineering ◽  
Adsorption Process ◽  
Pilot Scale ◽  
Open Loop ◽  
Operating Conditions ◽  
Temperature Profiles ◽  
Unit Operation ◽  
Control Loop ◽  
Vacuum Swing Adsorption ◽  
And Control

Oxygen vacuum swing adsorption (VSA) has emerged as an important unit operation in many chemical engineering processes such as iron and aluminium smelting, making oxygen the third largest man-made chemical commodity in the world. Although a mature technology (with the first patents published in the 1970s), oxygen VSA processes are still not well understood due to their complicated batch-like operation, inherent non-linearities and inverse responses associated with the operating conditions. Step perturbations of manipulated variables together with the process response provide valuable information for the study of system dynamics, the extent of interaction and control loop pairings. The first part of this study presents data from input perturbations gathered from a pilot-scale experimental oxygen VSA process. The interesting time-variant temperature profiles, and bed and system pressures, flows and purity are the main focus of the discussion. Furthermore, the possible applications of this knowledge for heuristic-based control are discussed.

Analysis and Optimization of a Pressure-Swing Adsorption Process for Air Separation

2005 ◽  
Vol 31 (6) ◽  
pp. 441-449 ◽  
Author(s):  
Masatoshi Yoshida ◽  
Pathiphon Koompai ◽  
Yoshiyuki Yamashita ◽  
Shigeru Matsumoto
Keyword(s):  
Pressure Swing Adsorption ◽  
Adsorption Process ◽  
Air Separation ◽  
Pressure Swing

Simulation and Optimization of a Dual-Adsorbent, Two-Bed Vacuum Swing Adsorption Process for CO2 Capture from Wet Flue Gas

2014 ◽  
Vol 53 (37) ◽  
pp. 14462-14473 ◽  
Author(s):  
Shreenath Krishnamurthy ◽  
Reza Haghpanah ◽  
Arvind Rajendran ◽  
Shamsuzzaman Farooq
Keyword(s):  
Co2 Capture ◽  
Flue Gas ◽  
Adsorption Process ◽  
Simulation And Optimization ◽  
Vacuum Swing Adsorption
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