Multi-functional zwitterionic compounds as new membrane materials for separating olefin–paraffin mixtures

Kim, Hoon Sik; Park, Sang Joon; Nguyen, Dinh Quan; Bae, Jangho; Bae, Hyun Woo; Lee, Hyunjoo; Lee, Sang Deuk; Choi, Dae Ki

doi:10.1039/b614212e

Cited by 13 publications

(10 citation statements)

References 27 publications

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“…The shortages associated with polymeric membranes performance have led researchers to the development of nonconventional membranes for propylene-propane separation. Facilitated transport membranes [32][33][34][35][36][37] and carbon molecular sieves membranes (CMS) [30,[38][39][40][41][42][43] are examples of these developments. Despite their satisfactory separation performance, facilitated transport membranes were not commercialized due to their unsustainable performance; these membranes are prone to irreversible performance loss upon the poisoning of their selective silver ion carriers [44].…”

Section: Zeolitic-imidazolate Framework (Zif-8)mentioning

confidence: 99%

Propylene - propane separation using Zeolitic-Imidazolate Framework (ZIF-8) membranes: Process techno-commercial evaluation

Alcheikhhamdon

Pinnau

Hoorfar

et al. 2019

Journal of Membrane Science

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Several recent studies investigated the use of the novel Zeolitic-Imidazolate Framework (ZIF-8) membranes for olefinparaffin separation. In this manuscript, a techno-commercial model is developed to examine the use of these membranes for separating propylene from propane. Single-stage and two-stage membrane processes were assessed for their performance compared to distillation. The assessment was conducted considering 70 wt% propylene feed, typically produced from the upstream depropanizer. The single-stage process was found technically capable and commercially competent to produce the chemical grade propylene (93 wt%), but not the polymer grade (99.5 wt%). Alternatively, the two-stage process was capable of producing both propylene grades at promising recovery and cost figures. The published propylene/propane selectivity of 35 appears adequate in meeting the separation demands, subject to the adoption of proper unit design. Future research should grant more attention towards aspects such as ZIF-8 membranes' manufacturability, cost, and performance in real environments.

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Section: Zeolitic-imidazolate Framework (Zif-8)mentioning

confidence: 99%

Propylene - propane separation using Zeolitic-Imidazolate Framework (ZIF-8) membranes: Process techno-commercial evaluation

Alcheikhhamdon

Pinnau

Hoorfar

et al. 2019

Journal of Membrane Science

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“…From Table 4, it can be seen that the Bulk Fluid Liquid Membranes (BFLM) in Hollow Fibers is the most promising technique to be applied in ethylene separation from ethane (Tsou, Blachman & Davis, 1994;Teramoto et al, 2005), since such a type of membranes present the highest purity of the ethylene product. (Kim et al, 2007;Kang et al, 2008) -Ag supported on the membrane, using a solution of AgNO 70 wt% in RTIL From Table 5, the most promising membrane technique to be applied in propylene separation is the SLM (Supported Liquid Membrane) in PTFE (Ravanchi et al, 2008), due to its higher permeance.…”

Section: Mass Transfer Data For Proposed π-Complexation Techniquesmentioning

confidence: 99%

“…Even though the solid membrane shows a higher selectivity to propylene (Kim et al, 2007;Kang et al, 2008), in both cases a further separation step would be required to achieve the petrochemical grade.…”

Section: Mass Transfer Data For Proposed π-Complexation Techniquesmentioning

confidence: 99%

Technical and economic evaluation Separation of the separation of light olefins (Ethylene and Propylene) by using π-complexationwith silver salts

Salgado-Gordon

Valbuena-Moreno

2011

CT&F Cienc. Tecnol. Futuro

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Conventional processes for separation of ethylene and propylene until petrochemical grade are energy intensive; therefore, alternative separation processes, such as chemical affinity based technologies, are an interesting alternative for designing more sustainable processes. π-Complexation of the silver ion (Ag+) is one of these technologies. In this study, π-complexation is compared with the conventional technologies by evaluating from process and economic point of views, in order to determine whether they are feasible to be implemented at industrial scale in both grass-roots and existing units. Based on the results, the most promissory techniques to be applied are the Bulk Fluid Liquid Membrane (BFLM) in hollow fiber modules to separate ethylene/ethane, and absorption with an AgNO3 solution to separate propylene/propane. In addition, the implementation of hybrid processes, by combining conventional and chemical affinity technologies, provides a higher saving in the production cost when applied to revamp existing units to achieve both, reducing energy consumption, or increasing processing capacity.

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“…To decrease energy consumption, membrane-based processes have been considered as one of the most promising alternative [3][4][5]. For propylene/propane separation, various types of membranes have been presented such as polymers [6][7][8][9], carbon molecular sieves [10][11][12][13][14][15], zeolites [16][17][18] and facilitated transport membranes [19][20][21][22][23][24]. However, practically all of mentioned membranes are limited by some key disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Theoritical Study of Various Configurations of Membrane Processes for Olefins Separation

Ghasemzadeh¹

2017

Int. J. Membrane Sci. Techno.

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The major purpose of present study, is investigation of the ZIF-8 membrane performance for various configurations, namely; single stage, series multistage and countercurrent recycle cascade (CRC), during separation of propylene from propane and other gases. To this aim, a balck-box model was developed using Pro II software vesion 9 and its validation was carried out by comparing the simulation results with experimental data. The results of simulation validation illustrated a good agreement between theoritical results and experimental data. After simulation validation, for propylene separation, various configurations of ZIF-8 membrane process (single stage, series multistage and countercurrent recycle cascade (CRC) multistage) were compared and the best results were achieved for CRC configuration. In this work, the influence of the some significant operating parameters, namely pressure gradient, feed molar flow rate and membrane surface area on the performance of ZIF-8 membrane was studied in term of purification efficiency of propylene. In general, the simulation results showed that the ZIF-8 membrane presents acceptable performance to produce high purity propylene. It can be concluded that the propylene composition in the permeate side was decreased by membrane surface area, while the feed flow rate and pressure gradient effects were different. However, increasing of feed flow rate indicated the enhancement of propylene molar fraction in retentate side and consequently this result showed decreasing of the membrane performance.

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Multi-functional zwitterionic compounds as new membrane materials for separating olefin–paraffin mixtures

Cited by 13 publications

References 27 publications

Propylene - propane separation using Zeolitic-Imidazolate Framework (ZIF-8) membranes: Process techno-commercial evaluation

Propylene - propane separation using Zeolitic-Imidazolate Framework (ZIF-8) membranes: Process techno-commercial evaluation

Technical and economic evaluation Separation of the separation of light olefins (Ethylene and Propylene) by using π-complexationwith silver salts

Theoritical Study of Various Configurations of Membrane Processes for Olefins Separation

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