Membrane‐Based Olefin/Paraffin Separations

Ren, Yanxiong; Xu, Liang; Dou, Haozhen; Ye, Chumei; Guo, Zheyuan; Wang, Yunlong; Pan, Yichang; Wu, Hong; Guiver, Michael D.; Jiang, Zhongyi

doi:10.1002/advs.202001398

Cited by 134 publications

(94 citation statements)

References 193 publications

(251 reference statements)

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“…Peaks I( 156 meV), III (137 meV) and V(114 meV) can be assigned to the symmetric, asymmetric and out-of-plane bending modes of the framework -CH groups,consistent with Membrane-based separation techniques are widely considered to be energy-efficient alternatives to traditional distillation processes. [31][32][33] MMMs can effectively improve the trade-off between selectivity and permeability in pure polymer-based membranes by incorporating porous fillers. [33] Although polymer-based thin-films and MMMs have been studied intensively for the separation of various gas mixtures, such as H 2 /CO 2 , [34][35][36] CO 2 /N 2 , [37] CO 2 /CH 4 [38][39][40] and O 2 /N 2 , [41] polymer-based membranes have shown limited separation factors or permeability [42][43][44] for the separation of C 3 H 6 /C 3 H 8 , and such studies based upon MOF-incorporated MMMs have only been reported in limited cases,such as ZIF-8, ZIF-67 and SIFSIX [32,[45][46][47][48] (Figure 4, Table S10).…”

Section: Resultsmentioning

confidence: 99%

Purification of Propylene and Ethylene by a Robust Metal–Organic Framework Mediated by Host–Guest Interactions

Han

Kang

et al. 2021

Angew Chem Int Ed

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Industrial purification of propylene and ethylene requires cryogenic distillation and selective hydrogenation over palladium catalysts to remove propane,e thane and/or trace amounts of acetylene.Here,wereport the excellent separation of equimolar mixtures of propylene/propane and ethylene/ ethane,and of a1/100 mixture of acetylene/ethylene by ahighly robust microporous material, MFM-520, under dynamic conditions.Insitu synchrotron single crystal X-raydiffraction, inelastic neutron scattering and analysis of adsorption thermodynamic parameters reveal that as eries of synergistic hostguest interactions involving hydrogen bonding and p•••p stacking interactions underpin the cooperative binding of alkenes within the pore.Notably,the optimal pore geometry of the material enables selective accommodation of acetylene.The practical potential of this porous material has been demonstrated by fabricating mixed-matrix membranes comprising MFM-520, Matrimid and PIM-1, and these exhibit not only ah igh permeability for propylene ( % 1984 Barrer), but also as eparation factor of 7.8 for an equimolar mixture of propylene/propane at 298 K.

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Section: Resultsmentioning

confidence: 99%

Purification of Propylene and Ethylene by a Robust Metal–Organic Framework Mediated by Host–Guest Interactions

Han

Kang

et al. 2021

Angew Chem Int Ed

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“…Membrane‐based separation techniques are widely considered to be energy‐efficient alternatives to traditional distillation processes [31–33] . MMMs can effectively improve the trade‐off between selectivity and permeability in pure polymer‐based membranes by incorporating porous fillers [33] .…”

Section: Resultsmentioning

confidence: 99%

“…Peaks I(156 meV), III (137 meV) and V( 114 meV) are assigned to the symmetric,a symmetric and Membrane-based separation techniques are widely considered to be energy-efficient alternatives to traditional distillation processes. [31][32][33] MMMs can effectively improve the trade-off between selectivity and permeability in pure polymer-based membranes by incorporating porous fillers. [33] Although polymer-based thin-films and MMMs have been studied intensively for the separation of various gas mixtures, such as H 2 /CO 2 , [34][35][36] CO 2 /N 2 , [37] CO 2 /CH 4 [38][39][40] and O 2 /N 2 , [41] polymer-based membranes have shown limited separation factors or permeability [42][43][44] for the separation of C 3 H 6 /C 3 H 8 , and such studies based upon MOF-incorporated MMMs have only been reported in limited cases,such as ZIF-8, ZIF-67 and SIFSIX [32,[45][46][47][48] (Figure 4, Table S10).…”

Section: Resultsmentioning

confidence: 99%

Purification of Propylene and Ethylene by a Robust Metal–Organic Framework Mediated by Host–Guest Interactions

Han

Kang

et al. 2021

Angewandte Chemie

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“…Moreover, inorganic membranes' fabrication costs are high in comparison to other two membranes. [28][29][30][31] To increase consistency and permeability of mixed matrix, application of zeolite-based materials has attracted much attention of the scientists in recent years. [32][33][34] Owing to high thermal and chemical stability, ZIFs have attracted more attention than that of metal-organic framework.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, inorganic membranes’ fabrication costs are high in comparison to other two membranes. [ 28–31 ]…”

Section: Introductionmentioning

confidence: 99%

Modeling Study of Propane/Propylene Membrane Separation Using CFD Method

Safaei

Zeynali

Safaei

2021

Macro Theory & Simulations

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debottleneck the permeability-selectivity and scale-up issues currently faced by polymeric and inorganic membranes, respectively. [6] Thus, low energy is required except if high energy should be applied to expand feed stream pressure for driving permeating component(s) on membrane films. [7,8] These procedures present a basically straightforward flow sheet. There are no perplexing control plans, no moving parts (aside from siphons or blowers), and minimal auxiliary gear contrasted with numerous different procedures. Accordingly, they can offer a simple, basic, and low support process choice [9-12] and could be fabricated with incredibly high selectivity for the parts to be isolated. By and large, these selectivity estimations are a lot greater than commonplace quality for relative unpredictability in refining tasks. Likewise, as a result of the way that an extremely enormous number of inorganic and polymeric materials can be used as membrane, there can be a lot of power over partition selectivity. Many researches have been done in mechanisms and materials of membranes for suggested new solutions, [13] preparation and characterization, green methods for preparation of paraffin and olefins; [14,15] new innovations are taking place in this area but there are some important challenges. [16,17] Membranes can recoup minor yet significant parts from a standard without considerable costs of energy. [18,19] Potentially, membrane processes are more environmentally friendly because these approaches use simple and nonharmful materials. In petrochemical industries, olefins such as ethylene and propylene are among the key materials used in producing polyolefin such as styrene, polypropylene, polyethylene, acrylonitrile, ethylene dichloride, isopropanol, and ethyl benzene. A key step in manufacturing olefins is their large-scale separation from corresponding paraffins. [20-22] Membrane gas separation has attracted many researchers owing to its low energy consumption and simplicity; however, it has the drawback of inverse relationship between permeability and selectivity. Nanocomposite membranes, where permeability and selectivity are simultaneously enhanced, can address this issue. To separate paraffin from olefin, different membranes are being used which, in order to solve problems with the materials used in the fabrication of these membranes such as zeolites, silicates, and carbon-based materials, application of mixed matrix membranes (MMMs) is preferred owing to their simple polymerization process which provides desirable selectivity and permeability in the separation of propene from propane. [23-27] Polymeric membranes, MMMs, and inorganic membranes Based on the wide applications of olefins in industries, especially in petrochemical industries which are among the major income sources, the separation of olefins from paraffin with membrane processes has been considered. Therefore, for the investigation of the performance of membrane processes, modeling can be used as a suitable and low-cost method to estimate and predict the ...

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Membrane‐Based Olefin/Paraffin Separations

Cited by 134 publications

References 193 publications

Purification of Propylene and Ethylene by a Robust Metal–Organic Framework Mediated by Host–Guest Interactions

Purification of Propylene and Ethylene by a Robust Metal–Organic Framework Mediated by Host–Guest Interactions

Purification of Propylene and Ethylene by a Robust Metal–Organic Framework Mediated by Host–Guest Interactions

Modeling Study of Propane/Propylene Membrane Separation Using CFD Method

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