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Guo Y, Gu X, Hu G, Webley PA, Li GK. Enrichment of low-grade methane by dual reflux vacuum swing adsorption. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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2
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Shang H, Bai H, Li X, Li J, Yang J. Site trials of methane capture from low-concentration coalbed methane drainage wells using a mobile skid-mounted vacuum pressure swing adsorption system. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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3
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Wilkins NS, Pai KN, Rajendran A. Optimization of pressure‐vacuum swing adsorption processes for nitrogen rejection from natural gas streams using a nitrogen selective metal organic framework. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nicholas Stiles Wilkins
- Department of Chemical and Materials Engineering University of Alberta, 12th Floor, Donadeo Innovation Centre for Engineering (ICE), 9211 ‐ 116 Street Edmonton Alberta Canada
| | - Kasturi Nagesh Pai
- Department of Chemical and Materials Engineering University of Alberta, 12th Floor, Donadeo Innovation Centre for Engineering (ICE), 9211 ‐ 116 Street Edmonton Alberta Canada
| | - Arvind Rajendran
- Department of Chemical and Materials Engineering University of Alberta, 12th Floor, Donadeo Innovation Centre for Engineering (ICE), 9211 ‐ 116 Street Edmonton Alberta Canada
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4
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Weh R, Xiao G, Sadeghi Pouya E, May EF. Helium recovery and purification by dual reflux pressure swing adsorption. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Rossi E, Florit F, Storti G, Rota R. Effect of pressure ratio on the separation performances of different DRPSA configurations under equilibrium conditions. ADSORPTION 2022. [DOI: 10.1007/s10450-022-00358-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
AbstractDual reflux pressure swing adsorption is a peculiar application of pressure swing adsorption with relevant separation potential. In a proper range of operating parameters, high separation performances are achieved in many applications, including complete separation in the case of binary mixtures. In this work, a new representation of the design parameters suitable for complete separation based on the semi-analytical solution of the corresponding Equilibrium Theory model is proposed for the four basic process configurations. Namely, given feed position, feed composition, and adsorbent separation selectivity, the combinations of the remaining process parameters ensuring complete separation are identified in a 3D plot. Furthermore, the same model equations have been solved numerically to explore conditions of incomplete separation, where the semi-analytical solution is not available. In particular, the sensitivity of the separation performances of each configuration to the pressure ratio has been explored. More specifically, given the region of operating conditions suitable for complete separation, selected operating conditions outside this region have been explored aimed to recover/improve the separation quality. Even though the different configurations exhibit different behaviors, the general dependence of the product purity upon the pressure ratio is quite limited and only minor improvements can be obtained with a few exceptions.
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6
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Hu G, Xiao G, Guo Y, Manning M, Chen L, Yu L, Li KG, May EF. Separation of methane and nitrogen using ionic liquidic zeolites (
ILZ
) by pressure vacuum swing adsorption (
PVSA
). AIChE J 2022. [DOI: 10.1002/aic.17668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guoping Hu
- Fluid Science & Resources Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Gongkui Xiao
- Fluid Science & Resources Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
| | - Yalou Guo
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Mitch Manning
- Gas Capture Technologies Pty., Ltd Cockburn Western Australia Australia
| | - Li Chen
- DKT Energy Technology Co., Ltd Chengdu Sichuan China
| | - Lanjin Yu
- DKT Energy Technology Co., Ltd Chengdu Sichuan China
| | - Kevin Gang Li
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Eric F. May
- Fluid Science & Resources Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
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7
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Guo Y, Jusko V, Xiao G, Hanekom J, Hu G, Webley PA, May EF, Li GK. Separation of He/
N
2
/
CH
4
ternary mixtures by a triple‐reflux pressure swing adsorption process. AIChE J 2022. [DOI: 10.1002/aic.17569] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yalou Guo
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Vincent Jusko
- Fluid Science and Resources Research Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
| | - Gongkui Xiao
- Fluid Science and Resources Research Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
| | - Jurgen Hanekom
- Fluid Science and Resources Research Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
| | - Guoping Hu
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
- Fluid Science and Resources Research Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
| | - Paul A. Webley
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Eric F. May
- Fluid Science and Resources Research Division, Department of Chemical Engineering The University of Western Australia Crawley Western Australia Australia
| | - Gang Kevin Li
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
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8
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Guo Y, Hu G, Chen K, Guo J, Webley PA, Li GK. Capture of dilute methane with a novel dynamic‐feed dual‐reflux pressure swing adsorption process. AIChE J 2021. [DOI: 10.1002/aic.17390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yalou Guo
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Guoping Hu
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Kaifei Chen
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Jining Guo
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Paul A. Webley
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Gang Kevin Li
- Department of Chemical Engineering The University of Melbourne Parkville Victoria Australia
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9
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Weh R, Xiao G, Islam MA, May EF. Nitrogen Rejection by Dual Reflux Pressure Swing Adsorption Using Engelhard Titanosilicate Type 4. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roman Weh
- ARC Training Centre for LNG Futures, Fluid Science & Resources Division, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
| | - Gongkui Xiao
- ARC Training Centre for LNG Futures, Fluid Science & Resources Division, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
| | - Md Ashraful Islam
- Oil & Gas Treatment Division, Research & Development Center, Saudi Aramco Oil Company, Dhahran 31311, Saudi Arabia
| | - Eric F. May
- ARC Training Centre for LNG Futures, Fluid Science & Resources Division, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
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10
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Influence of the main operating parameters on the DRPSA process design based on the equilibrium theory. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00274-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractAmong the adsorption-based separation processes for gaseous mixtures, those exploiting pressure variations, so-called Pressure Swing Adsorption (PSA) processes, are the most popular. In this work, we focus on the specific PSA configuration known as Dual Reflux-Pressure Swing Adsorption (DR-PSA) given its ability to achieve sharp separations. In the case of binary mixtures, an analytical approach based on Equilibrium Theory has been proposed to identify the operating conditions for complete separation under the assumption of linear isotherms. This same approach is not available when the separation is not complete. Accordingly, in this work we study the features of non-complete separations by solving numerically a general DR-PSA model with parameter values suitable to approach equilibrium conditions (no mass transport resistances, no axial mixing, isothermal conditions and no pressure drop), thus reproducing the analytical solution when complete separations are examined. Even for non-complete separations, triangularly shaped regions at constant purity can be identified on a plane whose axes correspond to suitable design parameters. Moreover, we found a general indication on how to select the lateral feed injection position to limit the loss in product purities when complete separation is not established, whatever is the composition of the feeding mixture. Finally, a sensitivity analysis with respect to pressure ratio, light reflux ratio and heavy product flowrate is proposed in order to assess how to recover product purities according to the specific degrees of freedom of a DR-PSA apparatus.
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