Optimization and Control of Pressure Swing Adsorption Processes Under Uncertainty

Handle URI:
http://hdl.handle.net/10754/599098
Title:
Optimization and Control of Pressure Swing Adsorption Processes Under Uncertainty
Authors:
Khajuria, Harish; Pistikopoulos, Efstratios N.
Abstract:
The real-time periodic performance of a pressure swing adsorption (PSA) system strongly depends on the choice of key decision variables and operational considerations such as processing steps and column pressure temporal profiles, making its design and operation a challenging task. This work presents a detailed optimization-based approach for simultaneously incorporating PSA design, operational, and control aspects under the effect of time variant and invariant disturbances. It is applied to a two-bed, six-step PSA system represented by a rigorous mathematical model, where the key optimization objective is to maximize the expected H2 recovery while achieving a closed loop product H2 purity of 99.99%, for separating 70% H2, 30% CH4 feed. The benefits over sequential design and control approach are shown in terms of closed-loop recovery improvement of more than 3%, while the incorporation of explicit/multiparametric model predictive controllers improves the closed loop performance. © 2012 American Institute of Chemical Engineers (AIChE).
Citation:
Khajuria H, Pistikopoulos EN (2012) Optimization and Control of Pressure Swing Adsorption Processes Under Uncertainty. AIChE J 59: 120–131. Available: http://dx.doi.org/10.1002/aic.13783.
Publisher:
Wiley-Blackwell
Journal:
AIChE Journal
Issue Date:
21-Mar-2012
DOI:
10.1002/aic.13783
Type:
Article
ISSN:
0001-1541
Sponsors:
Financial support from the Royal Commission for the Exhibition of 1851, ParOS Ltd., EU project HY2SEPS (contract number: 019887), EPSRC (EP/G059071/1, EP/I014640/1), and KAUST is sincerely acknowledged. The authors also thank HY2SEPS for kindly providing the experimental data for the gas–solid system.
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Full metadata record

DC FieldValue Language
dc.contributor.authorKhajuria, Harishen
dc.contributor.authorPistikopoulos, Efstratios N.en
dc.date.accessioned2016-02-25T13:52:50Zen
dc.date.available2016-02-25T13:52:50Zen
dc.date.issued2012-03-21en
dc.identifier.citationKhajuria H, Pistikopoulos EN (2012) Optimization and Control of Pressure Swing Adsorption Processes Under Uncertainty. AIChE J 59: 120–131. Available: http://dx.doi.org/10.1002/aic.13783.en
dc.identifier.issn0001-1541en
dc.identifier.doi10.1002/aic.13783en
dc.identifier.urihttp://hdl.handle.net/10754/599098en
dc.description.abstractThe real-time periodic performance of a pressure swing adsorption (PSA) system strongly depends on the choice of key decision variables and operational considerations such as processing steps and column pressure temporal profiles, making its design and operation a challenging task. This work presents a detailed optimization-based approach for simultaneously incorporating PSA design, operational, and control aspects under the effect of time variant and invariant disturbances. It is applied to a two-bed, six-step PSA system represented by a rigorous mathematical model, where the key optimization objective is to maximize the expected H2 recovery while achieving a closed loop product H2 purity of 99.99%, for separating 70% H2, 30% CH4 feed. The benefits over sequential design and control approach are shown in terms of closed-loop recovery improvement of more than 3%, while the incorporation of explicit/multiparametric model predictive controllers improves the closed loop performance. © 2012 American Institute of Chemical Engineers (AIChE).en
dc.description.sponsorshipFinancial support from the Royal Commission for the Exhibition of 1851, ParOS Ltd., EU project HY2SEPS (contract number: 019887), EPSRC (EP/G059071/1, EP/I014640/1), and KAUST is sincerely acknowledged. The authors also thank HY2SEPS for kindly providing the experimental data for the gas–solid system.en
dc.publisherWiley-Blackwellen
dc.subjectDynamic optimizationen
dc.subjectExplicit model-based predictive controlleren
dc.subjectModelingen
dc.subjectPressure swing adsorptionen
dc.subjectSimultaneous design and controlen
dc.titleOptimization and Control of Pressure Swing Adsorption Processes Under Uncertaintyen
dc.typeArticleen
dc.identifier.journalAIChE Journalen
dc.contributor.institutionCentre for Process System Engineering; Dept. of Chemical Engineering; Imperial College; London; SW7 2AZ; U.K.en
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