Gas Separation Membrane Module Modeling: A Comprehensive Review

Conceicao, Marcos Da; Nemetz, Leo R.; Rivero, Joanna; Hornbostel, Katherine; Lipscomb, G. Glenn

doi:10.3390/membranes13070639

Cited by 16 publications

(9 citation statements)

References 74 publications

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“…This fact can, of course, be related to the arrangement of the experimental setup used in the current study, which is similar to dead-end filtration, where there is no lateral transfer of a penetrant stream along the membrane surface on both the feed and permeate sides of the membrane. Earlier works have reported significant retentate temperature drops in comparison to the feed temperature during gas and vapor separation experiments involving full-scale membrane modules [ 66 , 67 ].…”

Section: Resultsmentioning

confidence: 99%

Permeance of Condensable Gases in Rubbery Polymer Membranes at High Pressure

Schuldt,

Lillepärg,

Pohlmann

et al. 2024

Membranes

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The gas transport properties of thin film composite membranes (TFCMs) with selective layers of PolyActive™, polydimethylsiloxane (PDMS), and polyoctylmethylsiloxane (POMS) were investigated over a range of temperatures (10–34 °C; temperature increments of 2 °C) and pressures (1–65 bar abs; 38 pressure increments). The variation in the feed pressure of condensable gases CO2 and C2H6 enabled the observation of peaks of permeance in dependence on the feed pressure and temperature. For PDMS and POMS, the permeance peak was reproduced at the same feed gas activity as when the feed temperature was changed. PolyActive™ TFCM showed a more complex behaviour, most probably due to a higher CO2 affinity towards the poly(ethylene glycol) domains of this block copolymer. A significant decrease in the permeate temperature associated with the Joule–Thomson effect was observed for all TFCMs. The stepwise permeance drop was observed at a feed gas activity of p/po ≥ 1, clearly indicating that a penetrant transfer through the selective layer occurs only according to the conditions on the feed side of the membrane. The permeate side gas temperature has no influence on the state of the selective layer or penetrant diffusing through it. The most likely cause of the observed TFCM behaviour is capillary condensation of the penetrant in the swollen selective layer material, which can be provoked by the clustering of penetrant molecules.

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Section: Resultsmentioning

confidence: 99%

Permeance of Condensable Gases in Rubbery Polymer Membranes at High Pressure

Schuldt,

Lillepärg,

Pohlmann

et al. 2024

Membranes

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“…Permeability and selectivity are traded for the majority of polymeric membranes, in a process which is known as "the Robeson upper-bound" [24], see Figure 1. The modified upper bound has an enhanced bound, because of notable advances in the performance of membranes since the previous upper bound was set in the 1950s [25]. The key criteria for choosing membrane materials for CO2 recovery up to this point have been permeability and selectivity for various materials; as the References show, various papers have examined membrane materials with elevated permeability.…”

Section: Research Progressmentioning

confidence: 99%

“…The mass transport mechanism of a CO 2 separation method is the pressure differential across the membrane unit. When the gas mixture moves at the atmosphere's pressure, the membrane process design can be performed to adjust for the low carbon dioxide content of the flue gas produced from a coal-fired power plant by increasing the pressure difference through the use of a compressor before the membrane module, a vacuum pump to remove the flue gas flow on the permeate side, or both [25]. In membrane CO 2 capture systems, an expander turbine can be harnessed to recover the stream energy before discharging into the atmosphere [30].…”

Section: Research Progressmentioning

confidence: 99%

Membrane CO2 Separation System Improvement for Coal-Fired Power Plant Integration

Alabid,

Dinca

2024

Energies

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Even though there are numerous CO2 capture technologies (such as chemical and physical absorption), investigators are still trying to come up with novel methods that can minimize the energy requirements for their integration into thermal power plants, as well as the CAPEX and OPEX expenses. In this work, the technical and financial aspects of integrating two-stage polymeric membranes into a coal-fired power plant with a capacity of 330 MW were examined. The study researched the membrane post-combustion CO2 capture process utilizing CHEMCAD version 8.1 software with several parameters and an expander to decrease the total cost. The simulation showed promising results regarding reducing power consumption after using an expander for both a high capture rate (>90%) and a CO2 concentration of more than 95%. Thus, the CO2 captured cost decreased from 58.4 EUR/t (no expander) to 48.7 EUR/t (with expander).

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“…Among them, for instance, are (I) membrane cost and material availability, (II) tolerance to impurities present in biogas, (III) thermal and chemical resistance and (iv) fundamental parameters defining membrane separation performance: permeability and selectivity [52,148,176] (Figure 5). Clearly, the permeability is equal to the product of gas solubility and membrane diffusivity [177]. In turn, the membrane selectivity α describes its ability to separate two gases, A and B, and it is defined as the ratio of permeability coefficients p A and p B and is as follows [147,[178][179][180]:…”

Section: Membrane Types Used For Biogas Upgradingmentioning

confidence: 99%

Biogas Upgrading Using a Single-Membrane System: A Review

Tomczak,

Gryta,

Daniluk

et al. 2024

Membranes

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In recent years, the use of biogas as a natural gas substitute has gained great attention. Typically, in addition to methane (CH4), biogas contains carbon dioxide (CO2), as well as small amounts of impurities, e.g., hydrogen sulfide (H2S), nitrogen (N2), oxygen (O2) and volatile organic compounds (VOCs). One of the latest trends in biogas purification is the application of membrane processes. However, literature reports are ambiguous regarding the specific requirement for biogas pretreatment prior to its upgrading using membranes. Therefore, the main aim of the present study was to comprehensively examine and discuss the most recent achievements in the use of single-membrane separation units for biogas upgrading. Performing a literature review allowed to indicate that, in recent years, considerable progress has been made on the use of polymeric membranes for this purpose. For instance, it has been documented that the application of thin-film composite (TFC) membranes with a swollen polyamide (PA) layer ensures the successful upgrading of raw biogas and eliminates the need for its pretreatment. The importance of the performed literature review is the inference drawn that biogas enrichment performed in a single step allows to obtain upgraded biogas that could be employed for household uses. Nevertheless, this solution may not be sufficient for obtaining high-purity gas at high recovery efficiency. Hence, in order to obtain biogas that could be used for applications designed for natural gas, a membrane cascade may be required. Moreover, it has been documented that a significant number of experimental studies have been focused on the upgrading of synthetic biogas; meanwhile, the data on the raw biogas are very limited. In addition, it has been noted that, although ceramic membranes demonstrate several advantages, experimental studies on their applications in single-membrane systems have been neglected. Summarizing the literature data, it can be concluded that, in order to thoroughly evaluate the presented issue, the long-term experimental studies on the upgrading of raw biogas with the use of polymeric and ceramic membranes in pilot-scale systems are required. The presented literature review has practical implications as it would be beneficial in supporting the development of membrane processes used for biogas upgrading.

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Gas Separation Membrane Module Modeling: A Comprehensive Review

Cited by 16 publications

References 74 publications

Permeance of Condensable Gases in Rubbery Polymer Membranes at High Pressure

Permeance of Condensable Gases in Rubbery Polymer Membranes at High Pressure

Membrane CO2 Separation System Improvement for Coal-Fired Power Plant Integration

Biogas Upgrading Using a Single-Membrane System: A Review

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