Abstract
This study focuses on an optimization of start-up operating conditions of a rapid pressure swing adsorption (RPSA) process, which is operated in a cyclic pressure variation mode. The objective function is defined not only to reduce the operating power but also to shorten the time to reach the cyclic steady state (CSS), as well as to increase the purity of the desired product at CSS. A general mathematical model considering the dynamic variation and spatial distribution of properties within the bed has been formulated and described by a set of integrated partial differential algebraic equations (IPDAE). The number of variables for optimization is 16 825 and both the single discretization of a spatial domain and the double discretization of spatial/time domains have been used for the numerical integration. As the computation result the optimal cycle time is 14.46 s and the optimal feed pressure is 597 kPa. Under the optimal condition the purity of desired product at CSS is calculated as 96.42% and the CSS convergence time is 5857 s. (C) 2000 Elsevier Science B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 17-26 |
| Number of pages | 10 |
| Journal | Separation and Purification Technology |
| Volume | 21 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2000 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Filtration and Separation
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Optimization of start-up operating condition in RPSA. / Ko, Daeho; Moon, il.
In: Separation and Purification Technology, Vol. 21, No. 1-2, 01.11.2000, p. 17-26.Research output: Contribution to journal › Article
TY - JOUR
T1 - Optimization of start-up operating condition in RPSA
AU - Ko, Daeho
AU - Moon, il
PY - 2000/11/1
Y1 - 2000/11/1
N2 - This study focuses on an optimization of start-up operating conditions of a rapid pressure swing adsorption (RPSA) process, which is operated in a cyclic pressure variation mode. The objective function is defined not only to reduce the operating power but also to shorten the time to reach the cyclic steady state (CSS), as well as to increase the purity of the desired product at CSS. A general mathematical model considering the dynamic variation and spatial distribution of properties within the bed has been formulated and described by a set of integrated partial differential algebraic equations (IPDAE). The number of variables for optimization is 16 825 and both the single discretization of a spatial domain and the double discretization of spatial/time domains have been used for the numerical integration. As the computation result the optimal cycle time is 14.46 s and the optimal feed pressure is 597 kPa. Under the optimal condition the purity of desired product at CSS is calculated as 96.42% and the CSS convergence time is 5857 s. (C) 2000 Elsevier Science B.V. All rights reserved.
AB - This study focuses on an optimization of start-up operating conditions of a rapid pressure swing adsorption (RPSA) process, which is operated in a cyclic pressure variation mode. The objective function is defined not only to reduce the operating power but also to shorten the time to reach the cyclic steady state (CSS), as well as to increase the purity of the desired product at CSS. A general mathematical model considering the dynamic variation and spatial distribution of properties within the bed has been formulated and described by a set of integrated partial differential algebraic equations (IPDAE). The number of variables for optimization is 16 825 and both the single discretization of a spatial domain and the double discretization of spatial/time domains have been used for the numerical integration. As the computation result the optimal cycle time is 14.46 s and the optimal feed pressure is 597 kPa. Under the optimal condition the purity of desired product at CSS is calculated as 96.42% and the CSS convergence time is 5857 s. (C) 2000 Elsevier Science B.V. All rights reserved.
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U2 - 10.1016/S1383-5866(00)00182-9
DO - 10.1016/S1383-5866(00)00182-9
M3 - Article
AN - SCOPUS:0034324955
VL - 21
SP - 17
EP - 26
JO - Separation and Purification Technology
JF - Separation and Purification Technology
SN - 1383-5866
IS - 1-2
ER -