Generalized optimization-based synthesis of membrane systems for multicomponent gas mixture separation

Taifan, Garry S.P.; Maravelias, Christos T.

doi:10.1016/j.ces.2022.117482

Cited by 11 publications

(8 citation statements)

References 45 publications

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“…The established model includes the following assumptions: There is no pressure loss between feed and residual sides [ 17 , 32 , 33 ]. The membrane is operated at an isothermal temperature [ 33 ].…”

Section: Model and Optimization Methodsmentioning

confidence: 99%

“… The membrane is operated at an isothermal temperature [ 33 ]. The phenomenon of concentration polarization is neglected [ 17 , 32 ]. The permeance and selectivity are constant [ 32 , 33 ].…”

Section: Model and Optimization Methodsmentioning

confidence: 99%

“… The phenomenon of concentration polarization is neglected [ 17 , 32 ]. The permeance and selectivity are constant [ 32 , 33 ]. The solution-diffusion model is used to describe the membrane transport intrinsic properties [ 20 , 33 ].…”

Section: Model and Optimization Methodsmentioning

confidence: 99%

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Synchronous Design of Membrane Material and Process for Pre-Combustion CO2 Capture: A Superstructure Method Integrating Membrane Type Selection

Cao

Zhang

et al. 2023

Membranes

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Membrane separation technology for CO2 capture in pre-combustion has the advantages of easy operation, minimal land use and no pollution and is considered a reliable alternative to traditional technology. However, previous studies only focused on the H2-selective membrane (HM) or CO2-selective membrane (CM), paying little attention to the combination of different membranes. Therefore, it is hopeful to find the optimal process by considering the potential combination of H2-selective and CO2-selective membranes. For the CO2 capture process in pre-combustion, this paper presents an optimization model based on the superstructure method to determine the best membrane process. In the superstructure model, both CO2-selective and H2-selective commercial membranes are considered. In addition, the changes in optimal membrane performance and capture cost are studied when the selectivity and permeability of membrane change synchronously based on the Robeson upper bound. The results show that when the CO2 purity is 96% and the CO2 recovery rate is 90%, the combination of different membrane types achieves better results. The optimal process is the two-stage membrane process with recycling, using the combination of CM and HM in all situations, which has obvious economic advantages compared with the Selexol process. Under the condition of 96% CO2 purity and 90% CO2 recovery, the CO2 capture cost can be reduced to 11.75$/t CO2 by optimizing the process structure, operating parameters, and performance of membranes.

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Section: Model and Optimization Methodsmentioning

confidence: 99%

Section: Model and Optimization Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Synchronous Design of Membrane Material and Process for Pre-Combustion CO2 Capture: A Superstructure Method Integrating Membrane Type Selection

Cao

Zhang

et al. 2023

Membranes

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show abstract

“…Isothermal is the operation temperature [53]; 3. No concentration polarization [52]. The proposed membrane model has the following considerations:…”

Section: Membrane Mathematical Modelmentioning

confidence: 99%

Parametrical Assessment of Polyacrylamide Polymer Membrane Used for CO2 Post-Combustion Capture

Alabid,

Dinca

2023

Applied Sciences

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A sensitive analysis of CO2 capture from a coal-fired power plant of 600 MW with membrane technology based on post-combustion process is demonstrated. This study aimed to determine the influence of the membrane materials used (e.g., CO2 permeability was considered at 300, 1000, and 3000 GPU) on coal-fired power plant performance by investigating various parameters, such as the membrane number of stages, membrane surface area, and compressors’ pressure. The membrane surface area required varied from 200,000 to 800,000 m2 to procure no less than 99% purity. The total power plant efficiency was reduced by different values after integrating membrane CO2-capture technology based on the process design; nevertheless, the efficiency is profitable by around 13.5% when three membrane stages were harnessed instead of a two-stage configuration. Consequently, the levelized cost of energy (LCOE) decreased from 157 EUR/MWh (two stages of membrane) to 134 EUR/MWh (three stages of membrane).

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“…Depending upon the scale examined, the optimal solution may identify recycle strategies in the flowsheet or technology alternatives in conceptual process design. In the context of membrane separations, superstructure optimization has helped reveal novel process configurations and systematically quantify design trade-offs for diverse applications including water treatment and desalination, − hydrocarbon and biogas processing, − and CO 2 capture. − …”

Section: Introductionmentioning

confidence: 99%

Optimal Diafiltration Membrane Cascades Enable Green Recycling of Spent Lithium-Ion Batteries

Wamble

Eugene

Phillip

et al. 2022

ACS Sustainable Chem. Eng.

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Novel processes are urgently needed to recycle critical materials (e.g., cobalt, lithium, nickel, and manganese) from spent lithium-ion batteries (LIBs). These separations are vital both to meet growing global demand and to mitigate a looming e-waste crisis. Currently, to recover cobalt and lithium from spent LIBs, high temperatures and organic solvents are used to separate Co2+ and Li+ in complex leaching and extraction processes. In contrast to using expensive designer ligands or harmful organic solvents, this work reveals that continuous membrane cascades are a promising aqueous-based alternative to recover these critical materials and facilitate their reuse. A superstructure optimization model that designs diafiltration cascades to maximize material recovery and purity as a function of membrane material performance and feed specifications is developed. This approach enables the comparison of candidate membrane materials by rapidly predicting the Pareto optimal trade-offs between the recovery and purity of lithium and cobalt for bespoke cascade designs. For example, the model predicts that, when deployed in an optimized two-stage cascade configuration, a nanofiltration membrane with a modest selectivity of 32 can be used to recover 95% Li+ and 99% Co2+ at 93 and 99.5 wt % purity, respectively. On the basis of analysis of over 1000 Pareto optimal designs, six design heuristics for executing binary separations using staged diafiltration cascades are proposed. Moreover, by evaluating membrane materials in the context of optimized diafiltration processes, this work quantifies the benefits of materials improvements and shows that the greatest research opportunities for membrane-based LIB recycling are at the device and systems scales. More broadly, the optimization models represent a robust framework for identifying the most effective way to deploy emerging materials in integrated process systems. This transformative capability is widely applicable to many of the separations needed to support sustainable global development.

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Generalized optimization-based synthesis of membrane systems for multicomponent gas mixture separation

Cited by 11 publications

References 45 publications

Synchronous Design of Membrane Material and Process for Pre-Combustion CO2 Capture: A Superstructure Method Integrating Membrane Type Selection

Synchronous Design of Membrane Material and Process for Pre-Combustion CO2 Capture: A Superstructure Method Integrating Membrane Type Selection

Parametrical Assessment of Polyacrylamide Polymer Membrane Used for CO2 Post-Combustion Capture

Optimal Diafiltration Membrane Cascades Enable Green Recycling of Spent Lithium-Ion Batteries

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