Impact of support on the fabrication of poly (ether-b-amide) composite membrane and economic evaluation for natural gas sweetening

Momeni, Masumeh; Kojabad, Mahdi Elyasi; Khanmohammadi, Saeed; Farhadi, Zeinab; Ghalandarzadeh, Reza; Babaluo, Ali Akbar; Zare, Marziyeh

doi:10.1016/j.jngse.2018.12.014

Cited by 17 publications

(5 citation statements)

References 28 publications

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“…Therefore, some expensive and high performance materials can be used [7]. Several review papers have reported that PEBA (Polyether block amide) polymer as an organic membrane has excellent potential for separating acid gas such as CO 2 , and can be used as a selective top layer in multilayer hybrid membranes [6,[8][9][10]. The multilayer hybrid membrane with high selective top layer must have a suitable sublayer.…”

Section: Introductionmentioning

confidence: 99%

PEBA/Na-X Multilayer Hybrid Membrane for CO2 Separation: Influence of Na-X Zeolite Layer Synthesis Condition

Vaezi

Bagheri

2023

Scientia Iranica

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The effects of synthesis time and the number of synthesis layers were investigated on the synthesis of Na-X zeolite sublayer for fabricating a PEBA/Na-X hybrid membrane. The CO 2 /N 2 separation was considered as the objective function to obtain an effective Na-X sublayer. SEM and AFM studies of the synthesized sublayers reveal that 6 hour synthesis time and one synthesis layer give an Na-X sublayer (ZSL6-1) with sub-micron thickness (< 1µm), and roughness of 13 nm. The N 2 permeation (11900 GPU) shows the low mass transfer resistance through the ZSL6-1 sublayer. The ZSL6-1 sublayer in the hybrid structure of the membrane leads to the high stability of the multilayer structure via the anchoring effect of the polymer. Hydroxyl groups, along with positive and negative charges on the surface of the Na-X sublayer, cause to strong bonding of the polymer layer and prevent its delamination.The surface coverage of the sublayer by polymer has increased the mass transfer resistance just for N 2 and increase the perm-selectivity. These properties, along with the high affinity of the Na-X to the adsorption of CO 2 , results in a 56% increase in the perm-selectivity of CO 2 /N 2 (~70) compared to net PEBA (~40-50) and the recently reported hybrid membranes.

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Section: Introductionmentioning

confidence: 99%

PEBA/Na-X Multilayer Hybrid Membrane for CO2 Separation: Influence of Na-X Zeolite Layer Synthesis Condition

Vaezi

Bagheri

2023

Scientia Iranica

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“…In many cases, it is displacing other, more classical gas separation processes, such as adsorption, absorption, or cryogenic treatment. Using membrane techniques, good results are obtained in the separation of air components [ 2 , 3 , 4 ], biogas components [ 5 , 6 , 7 ], the separation of helium from natural gas [ 8 , 9 ], hydrogen recovery [ 10 , 11 , 12 ], natural gas sweetening [ 13 , 14 , 15 ], or air dehydration [ 16 ] and natural gas dehydration [ 17 , 18 ]. In order to improve the efficiency of the membrane process and to optimize the energy consumption of such a process, single or multi-stage plants are used, along with recirculation of selected streams [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of Process Parameters on the Properties of Homogeneous and Heterogeneous Membranes for Gas Separation

Polak

Szwast

2022

Membranes

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Heterogeneous membranes, otherwise known as Mixed Matrix Membranes (MMMs), which are used in gas separation processes, are the subject of growing interest. This is due to their potential to improve the process properties of membranes compared to those of homogeneous membranes, i.e., those made of polymer only. Using such membranes in a process involves subjecting them to varying temperatures and pressures. This paper investigates the effects of temperature and feed pressure on the process properties of homogeneous and heterogeneous membranes. Membranes made of Pebax®2533 copolymer and containing additional fillers such as SiO2, ZIF−8, and POSS-Ph were investigated. Tests were performed over a temperature range of 25–55°C and a pressure range of 2–8 bar for N2, CH4, and CO2 gases. It was found that temperature positively influences the increase in permeability, while pressure influences permeability depending on the gas used, which is related to the effect of pressure on the solubility of the gas in the membrane.

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“…In recent decades, various polymers such as polysulfone, polyimide, polyphosphazene, cellulose acetate, polyurethane, and polyether block amide (PEBA) copolymer have been used as membrane materials for CO 2 separation [10]. Among these polymers, PEBA is the most interesting material and is the right candidate for CO 2 separation from flue gas and natural gas due to its high selectivity coefficients (e.g., CO 2 /N 2 or CO 2 /CH 4 ) [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Alumina-PEBA/ PSf Multilayer composite membranes for CO2 separation: experimental and molecular simulation studies

et al. 2022

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In this research, Polyether block amide (PEBA) containing different loadings of α-Al 2 O 3 particles was deposited on top of the polysulfone (PSf ) supports to form PEBA 1657-α-Al 2 O 3 /PSf multilayer composite mixed matrix membranes (MCMMMs). Multilayer Composite structure was used to overcome the sedimentation of fillers in the polymer matrix.Moreover, alpha phase of the Al 2 O 3 particles was applied to improve the distribution of these particles at higher loadings. SEM, XRD, and FTIR tests were applied to study morphology, crystalline structure, and chemical structure of the membranes, respectively. Gas permeation properties of the membranes were also measured using three different pure gases (CO 2 , CH 4 , and N 2 ) at the pressure of 7 bar and temperature of 25 C. CO 2 permeance and ideal selectivity of CO 2 /CH 4 , and CO 2 /N 2 for the optimum MCMMM with 20 wt% loading of α-Al 2 O 3 particles were 25% (117.5 Barrer), 81.5 % (32), and 86.5% (57) higher than that of multilayer composite neat membrane (MCNM), respectively. The molecular simulation results confirmed the results of the experimental studies and approved that the α-Al 2 O 3 particles are right candidates for improving the PEBA performance for CO 2 separation.

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Impact of support on the fabrication of poly (ether-b-amide) composite membrane and economic evaluation for natural gas sweetening

Cited by 17 publications

References 28 publications

PEBA/Na-X Multilayer Hybrid Membrane for CO2 Separation: Influence of Na-X Zeolite Layer Synthesis Condition

PEBA/Na-X Multilayer Hybrid Membrane for CO2 Separation: Influence of Na-X Zeolite Layer Synthesis Condition

Analysis of the Influence of Process Parameters on the Properties of Homogeneous and Heterogeneous Membranes for Gas Separation

Alumina-PEBA/ PSf Multilayer composite membranes for CO2 separation: experimental and molecular simulation studies

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