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Two-Dimensional Modeling of Pressure Swing Adsorption (PSA) Oxygen Generation with Radial-Flow Adsorber. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9061153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Radial flow is an important type of flow direction for large-scale pressure swing adsorption (PSA) oxygen generation systems. In this study, a numerical simulation of a PSA oxygen generation process based on radial-flow adsorbers was performed with two-dimensional CFD modeling. The gas distribution, the maldistribution factor and the pressure difference were comparatively investigated at each flow type of the radial-flow adsorber. Considering the gas adsorption performance, the results indicated that the centripetal π-flow radial adsorber has the best flow characteristics for the PSA process. The oxygen purity distribution within the adsorption bed was studied to compare centripetal and centrifugal π-flows, and the former was shown to perform better on oxygen enrichment and adsorbent desorption. The steady state was achieved after eight cycles for the centripetal-π adsorber and each of the four steps of the PSA process was explored in detail to show the advantageous properties for oxygen generation in terms of adsorption and desorption. The relationships between the product flow rate and the oxygen purity and recovery were further investigated.
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Sankararao B, Gupta SK. Modeling and simulation of fixed bed adsorbers (FBAs) for multi-component gaseous separations. Comput Chem Eng 2007. [DOI: 10.1016/j.compchemeng.2006.10.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sankararao B, Gupta SK. Multi-Objective Optimization of Pressure Swing Adsorbers for Air Separation. Ind Eng Chem Res 2007. [DOI: 10.1021/ie0615180] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- B. Sankararao
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India
| | - Santosh K. Gupta
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India
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Nandasana AD, Ray AK, Gupta SK. Dynamic Model of an Industrial Steam Reformer and Its Use for Multiobjective Optimization. Ind Eng Chem Res 2003. [DOI: 10.1021/ie0209576] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anjana D. Nandasana
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India, and Department of Chemical and Environmental Engineering, National University of Singapore, 10, Kent Ridge Crescent, Singapore 119260
| | - Ajay K. Ray
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India, and Department of Chemical and Environmental Engineering, National University of Singapore, 10, Kent Ridge Crescent, Singapore 119260
| | - Santosh K. Gupta
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India, and Department of Chemical and Environmental Engineering, National University of Singapore, 10, Kent Ridge Crescent, Singapore 119260
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Cruz P, Santos J, Magalhães F, Mendes A. Cyclic adsorption separation processes: analysis strategy and optimization procedure. Chem Eng Sci 2003. [DOI: 10.1016/s0009-2509(03)00189-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Improved ODE integrator and mass transfer approach for simulating a cyclic adsorption process. Comput Chem Eng 2003. [DOI: 10.1016/s0098-1354(03)00003-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ghoshal A, Manjare S. Selection of appropriate adsorption technique for recovery of VOCs: an analysis. J Loss Prev Process Ind 2002. [DOI: 10.1016/s0950-4230(02)00042-6] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Limitations of the LDF/equimolar counterdiffusion assumption for mass transport within porous adsorbent pellets. Chem Eng Sci 2002. [DOI: 10.1016/s0009-2509(02)00368-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Effect of the process parameters on the length of the mass transfer zone during product withdrawal in pressure swing adsorption cycles. Chem Eng Sci 2001. [DOI: 10.1016/s0009-2509(01)00121-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Serbezov A, Sotirchos SV. On the formulation of linear driving force approximations for adsorption and desorption of multicomponent gaseous mixtures in sorbent particles. Sep Purif Technol 2001. [DOI: 10.1016/s1383-5866(01)00146-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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