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Adegunju SA, Ebner AD, Ritter JA. Kinetically Limited Linear Driving Force Model for Diffusion-Based Adsorptive Separations. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Sulaimon A. Adegunju
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Armin D. Ebner
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - James A. Ritter
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
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2
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Abstract
AbstractAt present, nitrogen production from air by pressure swing adsorption (PSA) is simulated almost exclusively at low product purity levels (< 99% N2). However, with increasing global demand for highly purified gases provided by energy-efficient separation processes the requirement for either extensive experimental research in the high-purity range or predictive computer simulations arises. This paper presents a mathematical model of a twin-bed PSA plant equipped with a carbon molecular sieve (Shirasagi MSC CT-350) for the generation of high-purity nitrogen (99.9–99.999% N2). The model is implemented in the process simulator Aspen Adsorption™. The influence of operating conditions as well as the cycle organisation on the process performance is validated, especially the influence of pressure, temperature, half-cycle time, purge flow rate, and cutting time. The precision of the performance prediction by numerical simulations is critically discussed. Based on the new insights efficiency improvement strategies with a focus on reduced energy consumption are introduced and discussed by means of radar charts.
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3
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Biomethane production by adsorption technology: new cycle development, adsorbent selection and process optimization. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00250-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Brandani S, Mangano E, Brandani F, Pullumbi P. Carbon dioxide mass transport in commercial carbon molecular sieves using a volumetric apparatus. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116862] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen T, Chen Y, Bai P. Recovery of Biomass-Derived Polyols by Pressure Swing Adsorption: Experiments, Simulations, Scale-up Implementation and Economic Analysis. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tao Chen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, P. R. China
| | - Yuanzhi Chen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, P. R. China
| | - Peng Bai
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, P. R. China
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6
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Effendy S, Xu C, Farooq S. Optimization of a Pressure Swing Adsorption Process for Nitrogen Rejection from Natural Gas. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00513] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Surya Effendy
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive, 117585 Singapore
| | - Chen Xu
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive, 117585 Singapore
| | - Shamsuzzaman Farooq
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive, 117585 Singapore
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8
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Shafeeyan MS, Wan Daud WMA, Shamiri A. A review of mathematical modeling of fixed-bed columns for carbon dioxide adsorption. Chem Eng Res Des 2014. [DOI: 10.1016/j.cherd.2013.08.018] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Giesy TJ, LeVan MD. Mass transfer rates of oxygen, nitrogen, and argon in carbon molecular sieves determined by pressure-swing frequency response. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2012.12.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Khalighi M, Farooq S, Karimi IA. Nonisothermal Pore Diffusion Model for a Kinetically Controlled Pressure Swing Adsorption Process. Ind Eng Chem Res 2012. [DOI: 10.1021/ie3004539] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mona Khalighi
- Department of Chemical and Biomolecular
Engineering, National University of Singapore, 4 Engineering Drive
4, Singapore 117576
| | - Shamsuzzaman Farooq
- Department of Chemical and Biomolecular
Engineering, National University of Singapore, 4 Engineering Drive
4, Singapore 117576
| | - Iftekhar A. Karimi
- Department of Chemical and Biomolecular
Engineering, National University of Singapore, 4 Engineering Drive
4, Singapore 117576
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Majumdar B, Bhadra SJ, Marathe RP, Farooq S. Adsorption and Diffusion of Methane and Nitrogen in Barium Exchanged ETS-4. Ind Eng Chem Res 2011. [DOI: 10.1021/ie1014124] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- B. Majumdar
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | - S. J. Bhadra
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | - R. P. Marathe
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
| | - S. Farooq
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
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12
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Activated Carbons Prepared from Natural and Synthetic Raw Materials with Potential Applications in Gas Separations. ACTA ACUST UNITED AC 2010. [DOI: 10.4028/www.scientific.net/amr.107.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A carbon molecular sieve for the purification of a gas mixtures containing O2, N2 and CO2, CH4 was produced from a waste granulated PET by means of a single carbonisation step at 973 K. Activated carbon materials presenting good adsorption capacity and some selectivity for O2/N2 and CO2/CH4 were prepared from granulated PET and cork oak with pore mouth narrowing using CVD from benzene. The diffusion coefficients of O2, N2, CO2 and CH4 in these materials were calculated and are comparable to published values determined on Takeda 3A and on a carbon molecular sieve prepared from PET textile fibres by means of carbonisation and subsequent CVD with benzene. However, the selectivities were not quite as good as those given by Takeda 3A. However, taking into account that this is a first attempt at producing CMS from PET, the results are encouraging, and it is to be expected that further development of the experimental procedure will result in new materials with improved performance.
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Wang Y, LeVan MD. Investigation of Mixture Diffusion in Nanoporous Adsorbents via the Pressure-Swing Frequency Response Method. 2. Oxygen and Nitrogen in a Carbon Molecular Sieve. Ind Eng Chem Res 2005. [DOI: 10.1021/ie0489352] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Wang
- Department of Chemical Engineering, Vanderbilt University, Nashville, Tennessee 37235
| | - M. Douglas LeVan
- Department of Chemical Engineering, Vanderbilt University, Nashville, Tennessee 37235
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Ding LP, Yuan YX, Farooq S, Bhatia SK. A heterogeneous model for gas transport in carbon molecular sieves. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:674-681. [PMID: 15641838 DOI: 10.1021/la047970a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A dual resistance model with distribution of either barrier or pore diffusional activation energy is proposed in this work for gas transport in carbon molecular sieve (CMS) micropores. This is a novel approach in which the equilibrium is homogeneous, but the kinetics is heterogeneous. The model seems to provide a possible explanation for the concentration dependence of the thermodynamically corrected barrier and pore diffusion coefficients observed in previous studies from this laboratory on gas diffusion in CMS. The energy distribution is assumed to follow the gamma distribution function. It is shown that the energy distribution model can fully capture the behavior described by the empirical model established in earlier studies to account for the concentration dependence of thermodynamically corrected barrier and pore diffusion coefficients. A methodology is proposed for extracting energy distribution parameters, and it is further shown that the extracted energy distribution parameters can effectively predict integral uptake and column breakthrough profiles over a wide range of operating pressures.
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Affiliation(s)
- L P Ding
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576
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