Progressing thin-film membrane designs for post-combustion CO<sub>2</sub> capture: performance or practicality?

Wu, Jing; Hillman, Febrian; Liang, Can Zeng; Jia, Yulin; Zhang, Sui

doi:10.1039/d3ta02842a

Cited by 10 publications

(8 citation statements)

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“…This design space was formulated so that it does not significantly exceed the realistic range of permeances reported in the literature. The upper bound of CO 2 permeance (20,000 GPU) is based on the value suggested by Fujikawa et al While such performance has only been reported for nanomembranes, it is possible that some of the intrinsically high-performance membrane materials reported in the literature, when configured into hollow fibers with ultrathin (≈100 nm) selective layers, could yield such high permeance …”

Section: Resultsmentioning

confidence: 99%

“…The upper bound of CO 2 permeance (20,000 GPU) is based on the value suggested by Fujikawa et al 6 While such performance has only been reported for nanomembranes, 31 it is possible that some of the intrinsically highperformance membrane materials reported in the literature, when configured into hollow fibers with ultrathin (≈100 nm) selective layers, could yield such high permeance. 32 The lower bound of 100 GPU has been reported for a blend membrane composed of carboxymethyl chitosan (CMC) and poly(amidoamine) (PAMAM) in the literature. 33 The lower bound of CO 2 /N 2 selectivity approximately was chosen to be close to the Knudsen selectivity value (≈1.8).…”

Section: Operability Studiesmentioning

confidence: 99%

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Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO₂ Production

Gama,

Dantas,

Sanyal

et al. 2024

ACS Eng. Au

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Addressing climate change constitutes one of the major scientific challenges of this century, and it is widely acknowledged that anthropogenic CO2 emissions largely contribute to this issue. To achieve the “net-zero” target and keep the rise in global average temperature below 1.5 °C, negative emission technologies must be developed and deployed at a large scale. This study investigates the feasibility of using membranes as direct air capture (DAC) technology to extract CO2 from atmospheric air to produce low-purity CO2. In this work, a two-stage hollow fiber membrane module process is designed and modeled using the AVEVA Process Simulation platform to produce a low-purity (≈5%) CO2 permeate stream. Such low-purity CO2 streams could have several possible applications such as algae growth, catalytic oxidation, and enhanced oil recovery. An operability analysis is performed by mapping a feasible range of input parameters, which include membrane surface area and membrane performance metrics, to an output set, which consists of CO2 purity, recovery, and net energy consumption. The base case for this simulation study is generated considering a facilitated transport membrane with high CO2/N2 separation performance (CO2 permeance = 2100 GPU and CO2/N2 selectivity = 1100), when tested under DAC conditions. With a constant membrane area, both membranes’ intrinsic performances are found to have a considerable impact on the purity, recovery, and energy consumption. The area of the first module plays a dominant role in determining the recovery, purity, and energy demands, and in fact, increasing the area of the second membrane has a negative impact on the overall energy consumption, without improving the overall purities. The CO2 capture capacity of DAC units is important for implementation and scale-up. In this context, the performed analysis showed that the m-DAC process could be appropriate as a small-capacity system (0.1–1 Mt/year of air), with reasonable recoveries and overall purity. Finally, a preliminary CO2 emissions analysis is carried out for the membrane-based DAC process, which leads to the conclusion that the overall energy grid must be powered by renewable sources for the technology to qualify within the negative emissions category.

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Section: Resultsmentioning

confidence: 99%

Section: Operability Studiesmentioning

confidence: 99%

Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO₂ Production

Gama,

Dantas,

Sanyal

et al. 2024

ACS Eng. Au

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“…The higher the separation factor, the higher the pore size requirement of the membrane, which needs to be precisely regulated. 102 The pore size of the gas membrane has to be between the size of the molecular diameters of the two separated gases, with a smaller pore size. In this case, there is a problem of relatively lower permeability.…”

Section: The Applications Of Cof Membranesmentioning

confidence: 99%

Recent advances of pure/independent covalent organic framework membrane materials: preparation, properties and separation applications

Cai,

Yu,

et al. 2024

Nanoscale

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“…At the same time, the molecular adsorption is promoted through the coordinated regulation of the pore structure, which can further realise the efficient separation of gas or liquid mixture. 79 …”

Section: Applications Of Pof Membranesmentioning

confidence: 99%

Porous organic framework membranes based on interface-induced polymerisation: design, synthesis and applications

Liu,

Yu,

Yin

et al. 2024

Chem. Sci.

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Progressing thin-film membrane designs for post-combustion CO₂ capture: performance or practicality?

Abstract: Tremendous potential is seen in membrane technology for realizing efficient post-combustion CO2 capture from power plant flue gas, the largest anthropogenic source of emission. However, an examination of existing literatures...

Cited by 10 publications

References 214 publications

Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO₂ Production

Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO₂ Production

Recent advances of pure/independent covalent organic framework membrane materials: preparation, properties and separation applications

Porous organic framework membranes based on interface-induced polymerisation: design, synthesis and applications

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Progressing thin-film membrane designs for post-combustion CO2 capture: performance or practicality?

Abstract: Tremendous potential is seen in membrane technology for realizing efficient post-combustion CO2 capture from power plant flue gas, the largest anthropogenic source of emission. However, an examination of existing literatures...

Cited by 10 publications

References 214 publications

Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO2 Production

Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO2 Production

Recent advances of pure/independent covalent organic framework membrane materials: preparation, properties and separation applications

Porous organic framework membranes based on interface-induced polymerisation: design, synthesis and applications

Contact Info

Product

Resources

About

Progressing thin-film membrane designs for post-combustion CO₂ capture: performance or practicality?

Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO₂ Production

Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO₂ Production