Polyethylene with radiation-grafted sulfonated polystyrene membranes for butane and butenes separation

Zhilyaeva, N. A.; Лыткина, А. А.; Mironova, E. Yu.; Ермилова, М. М.; Орехова, Н. В.; Shevlyakova, N. V.; Tverskoy, V. A.; Yaroslavtsev, A. B.

doi:10.1016/j.cherd.2020.07.012

Cited by 9 publications

(8 citation statements)

References 37 publications

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“…Membrane separation technology has great application potential due to its energy-efficient, cost effective, and environmentally friendly and compact design features com-pared to traditional separation methods, especially for large-scale gas separation. [4,7,8] Currently, few studies on 1,3-C 4 H 6 /other C 4 hydrocarbons have been reported and mainly focus on polymer membranes. Yamaguchi et al [9] fabricated a Nation 117-Na + membrane in 1996 and realized the separation of 1,3-C 4 H 6 from other C 4 hydrocarbons for the first time, the ideal selectivity of 1,3-C 4 H 6 /n-C 4 H 8 is 3.4 under conditions of 100% relative humidity, 0.84 bar feed pressure and 25 • C. Subsequently, Okamoto et al [10] prepared 6FDA-TrMPD, 6FDA-DDBT and PPO membranes for 1,3-C 4 H 6 /n-C 4 H 10 separation, and accordingly their ideal selectivity is 67, 190 and 33, with 1,3-C 4 H 6 permeability of 111, 6.5, and 4.2 Barrer, respectively, at 1.0 bar feed pressure and 50 • C. After that, Adachi et al [11] designed an Ag +doped Polyperfluorosulfonate membrane (PSM) membrane for n-C 4 H 8 /1,3-C 4 H 6 separation through the affinity difference between gas molecules and Ag + , and the highest ideal selectivity is 11.7 together with 1,3-C 4 H 6 permeability is 0.81 Barrer at 70 • C. Nevertheless, these polymer membranes unavoidably suffer from an undesirable trade-off limitation of permeability and selectivity, [8,12] resulting in high selectivity while extremely low permeability.…”

Section: Introductionmentioning

confidence: 99%

“…Membrane separation technology has great application potential due to its energy‐efficient, cost effective, and environmentally friendly and compact design features compared to traditional separation methods, especially for large‐scale gas separation. [ 4,7,8 ] Currently, few studies on 1,3‐C 4 H 6 /other C 4 hydrocarbons have been reported and mainly focus on polymer membranes. Yamaguchi et al.…”

Section: Introductionmentioning

confidence: 99%

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Metal confined in metal‐organic framework‐based mixed matrix membranes for efficient butadiene recognition separation

Cen

Sun

et al. 2023

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The efficient separation of butadiene (1,3‐C4H6) from C4 hydrocarbons is a critical step in petrochemical processes. However, the traditional cryogenic distillation suffers from energy‐intensity and serious environmental stress, necessitating the development of alternative technologies for efficient 1,3‐C4H6 separation. Herein, a 1,3‐C4H6 recognition mixed matrix membrane is reported via incorporating metal copper encapsulated a metal‐organic framework (CuBTC@Cu) into elastic poly(dimethylsiloxane) (PDMS). The resulting CuBTC@Cu/PDMS membrane can efficient separate 1,3‐C4H6 from various C4 hydrocarbons including 1,3‐C4H6/n‐C4H8, 1,3‐C4H6/iso‐C4H8, 1,3‐C4H6/n‐C4H10 and 1,3‐C4H6/iso‐C4H10, yielding superior selectivity of 5.11, 6.35, 4.78, and 10.30, respectively, with 1,3‐C4H6 permeability of 53240 Barrer. Notably, the appropriate π‐complexation interaction between butadiene molecules and CuBTC@Cu as well as suitable transmission channel size enable the membrane only permeable to 1,3‐C4H6 and block the permeation of other C4 hydrocarbons, showing a unique 1,3‐C4H6 recognition behavior in membrane separation. The concept of affinity‐relying separation combining molecular sieving would open a new direction for designing gas membranes for efficient light hydrocarbon separations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metal confined in metal‐organic framework‐based mixed matrix membranes for efficient butadiene recognition separation

Cen

Sun

et al. 2023

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“…In [ 9 , 13 , 14 , 15 , 16 ], sulfonated membranes obtained by such a method of graft polymerization of styrene on PE film for CO 2 /N 2 , alkane/olefin mixtures separation and proton conducting membranes for fuel cells are used.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Post-Radiation-Chemical Graft Polymerization of Styrene in Polyethylene

et al. 2021

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Structural and morphological features of graft polystyrene (PS) and polyethylene (PE) copolymers produced by post-radiation chemical polymerization have been investigated by methods of X-ray microanalysis, electron microscopy, DSC and wetting angles measurement. The studied samples differed in the degree of graft, iron(II) sulphate content, sizes of PE films and distribution of graft polymer over the polyolefin cross section. It is shown that in all cases sample surfaces are enriched with PS. As the content of graft PS increases, its concentration increases both in the volume and on the surface of the samples. The distinctive feature of the post-radiation graft polymerization is the stepped curves of graft polymer distribution along the matrix cross section. A probable reason for such evolution of the distribution profiles is related to both the distribution of peroxide groups throughout the sample thickness and to the change in the monomer and iron(II) salt diffusion coefficients in the graft polyolefin layer. According to the results of electron microscope investigations and copolymer wettability during graft polymerization, a heterogeneous system is formed both in the sample volume and in the surface layer. It is shown that the melting point, glass transition temperature and degree of crystallinity of the copolymer decreases with the increasing proportion of graft PS. It is suggested that during graft polymerization a process of PE crystallite decomposition (melting) and enrichment of the amorphous phase of graft polymer by fragments of PE macromolecules occurs spontaneously. The driving force of this process is the osmotic pressure exerted by the phase network of crystallites on the growing phase of the graft PS.

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“…These adsorbents, including ion-exchange resins and polymer ligands, can be prepared by introducing functional groups onto polymer materials by the radiation-induced graft polymerization method. This method can introduce new functional properties while maintaining the properties of the trunk polymers [ 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ]. Various vinyl monomers have been radiation-grafted onto trunk polymers, such as polyethylene [ 41 , 42 ], polypropylene [ 43 , 44 ], fluoropolymers [ 45 ], and cellulose [ 46 , 47 ].…”

Section: Introductionmentioning

confidence: 99%

“…This method can introduce new functional properties while maintaining the properties of the trunk polymers [ 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ]. Various vinyl monomers have been radiation-grafted onto trunk polymers, such as polyethylene [ 41 , 42 ], polypropylene [ 43 , 44 ], fluoropolymers [ 45 ], and cellulose [ 46 , 47 ]. Furthermore, graft polymerization can be applied to various types of materials, such as films [ 45 ], fabrics [ 30 , 45 , 46 , 47 ], fibers [ 46 ], and particles [ 48 ].…”

Section: Introductionmentioning

confidence: 99%

Chain Entanglement of 2-Ethylhexyl Hydrogen-2-Ethylhexylphosphonate into Methacrylate-Grafted Nonwoven Fabrics for Applications in Separation and Recovery of Dy (III) and Nd (III) from Aqueous Solution

et al. 2020

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A nonwoven fabric adsorbent loaded with 2-ethylhexyl hydrogen-2-ethylhexylphosphonate (EHEP) was developed for the separation and recovery of dysprosium (Dy) and neodymium (Nd) from an aqueous solution. The adsorbent was prepared by the radiation-induced graft polymerization of a methacrylate monomer with a long alkyl chain onto a nonwoven fabric and the subsequent loading of EHEP by hydrophobic interaction and chain entanglement between the alkyl chains. The adsorbent was evaluated by batch and column tests with a Dy (III) and Nd (III) aqueous solution. In the batch tests, the adsorbent showed high Dy (III) adsorptivity close to 25.0 mg/g but low Nd (III) adsorptivity below 1.0 mg/g, indicating that the adsorbent had high selective adsorption. In particular, the octadecyl methacrylate (OMA)-adsorbent showed adsorption stability in repeated tests. In the column tests, the OMA-adsorbent was also stable and showed high Dy (III) adsorptivity and high selectivity in repeated adsorption–elution circle tests. This result suggested that the OMA-adsorbent may be a promising adsorbent for the separation and recovery of Dy (III) and Nd (III) ions.

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Polyethylene with radiation-grafted sulfonated polystyrene membranes for butane and butenes separation

Cited by 9 publications

References 37 publications

Metal confined in metal‐organic framework‐based mixed matrix membranes for efficient butadiene recognition separation

Metal confined in metal‐organic framework‐based mixed matrix membranes for efficient butadiene recognition separation

Mechanism of Post-Radiation-Chemical Graft Polymerization of Styrene in Polyethylene

Chain Entanglement of 2-Ethylhexyl Hydrogen-2-Ethylhexylphosphonate into Methacrylate-Grafted Nonwoven Fabrics for Applications in Separation and Recovery of Dy (III) and Nd (III) from Aqueous Solution

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