Polymer membranes for acid gas removal from natural gas

George, Gigi; Bhoria, Nidhika; AlHallaq, Sama; Abdala, Ahmed; Mittal, Vikas

doi:10.1016/j.seppur.2015.12.033

Cited by 206 publications

(106 citation statements)

References 208 publications

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“…There are various techniques to remove the CO 2 : absorption using either chemically active solvents or solvents that interact via physical interactions with CO 2 , adsorption on solid surfaces, membrane permeation, cryogenic fractionation and methanation [3][4][5]. Different design approaches and process layouts for CO 2 capture from crude SNG with membranes exist [6][7][8]. At high CO 2 partial pressure, SNG upgrade by absorption using physical solvents becomes attractive [7].…”

Section: Introductionmentioning

confidence: 99%

Novel pressure and temperature swing processes for CO2 capture using low viscosity ionic liquids

Zubeir

Lacroix

Meuldijk

et al. 2018

Separation and Purification Technology

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Section: Introductionmentioning

confidence: 99%

Novel pressure and temperature swing processes for CO2 capture using low viscosity ionic liquids

Zubeir

Lacroix

Meuldijk

et al. 2018

Separation and Purification Technology

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“…Many different polymers are investigated as materials for gas separation : polysulfone (PSf) , , polyimides (PIs) , , , polyamides (PAs) , , polyalkynes , , perfluorinated polymers , , , polyphenylene oxide (PPO) , , poly(dimethylsiloxane) (PDMS) , , mixed‐matrix membranes , , thermally rearranged polymers (TR) , , and polymers of intrinsic microporosity (PIMs) , . The performances of these polymers are discussed in detail in the literature , .…”

Section: Introductionmentioning

confidence: 99%

“…The polyimides are the most perspective and they have found their industrial implementation . Also membranes with ionic liquids in different forms were widely studied for CO 2 separation . However, these materials remain expensive at present and, therefore, are unattractive for commercially competitive biogas upgrading applications.…”

Section: Introductionmentioning

confidence: 99%

Biomethane Production from Biogas by Separation Using Thin‐Film Composite Membranes

et al. 2017

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Raw biogas obtained from a sewage plant was successfully purified by a single‐step method to a quality compatible with compressed natural gas (CNG) standards. For this purpose, thin‐film composite membranes with polyamide skin layer were evaluated at varying temperatures, pressures, feed and sweep flow rates. The wetting of the polyamide skin layer was analyzed under different experimental conditions. Optimization of the purification process resulted in a better separation than that in previous studies. The achieved CH4 and H2S levels are conform to the required standards for commercialization in the Czech Republic. A unique feature of the presented approach, distinguishing the water‐swollen thin‐film composite membranes from polymeric membranes under dry conditions, is that the condensing water absorbs a significant amount of the minor impurities of biogas, such as H2S.

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“…Among the polymeric precursors in the preparation of composite membranes, polysulfones and polyimides are the most fascinating because of their excellent properties, such as high productivity and efficiency of separation, high thermal and chemical stability, high mechanical resistance, and ease of preparation. 8,[60][61][62][63][64] They tend to have the highest gas transport properties of the polymer families, but even the best solution polymeric membranes are limited by an upper bound of possible gas selectivity and permeability. The high gas selectivity, combined with a relatively high gas permeability, allows many of these membranes to operate above the upper bound.…”

Section: Introductionmentioning

confidence: 99%

“…The high gas selectivity, combined with a relatively high gas permeability, allows many of these membranes to operate above the upper bound. 64 Ansaloni et al 58 put into practice different functionalities in multiwalled nanotubes with a diameter of 10-15 nm and synthesized poly(vinyl acetate) (PVA)/multiwalled nanotube (MWNT) membranes displaying high CO 2 permeability and good gas pair selectivity for CH 4 , H 2 , and N 2 . In addition, Zhao et al 59 applied amino-modified multiwalled carbon nanotubes to prepare mixed-matrix membranes (MMMs).…”

Section: Introductionmentioning

confidence: 99%

The morphology and gas‐separation performance of membranes comprising multiwalled carbon nanotubes/polysulfone–Kapton

Soleymanipour

Dehaghani

Pirouzfar

et al. 2016

J of Applied Polymer Sci

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The development of desirable chemical structures and properties in nanocomposite membranes involve steps that need to be carefully designed and controlled. This study investigates the effect of adding multiwalled nanotubes (MWNT) on a Kapton-polysulfone composite membrane on the separation of various gas pairs. Data from Fourier transform infrared spectroscopy and scanning electron microscopy confirm that some studies on the Kapton-polysulfone blends are miscible on the molecular level. In fact, the results indicate that the chemical structure of the blend components, the Kapton-polysulfone blend compositions, and the carbon nanotubes play important roles in the transport properties of the resulting membranes. The results of gas permeability tests for the synthesized membranes specify that using a higher percentage of polysulfone (PSF) in blends resulted in membranes with higher ideal selectivity and permeability. Although the addition of nanotubes can increase the permeability of gases, it decreases gas pair selectivity. Furthermore, these outcomes suggest that Kapton-PSF membranes with higher PSF are special candidates for CO 2 /CH 4 separation compared to CO 2 /N 2 and O 2 /N 2 separation. High CH 4 , CO 2 , N 2 , and O 2 permeabilities of 0.35, 6.2, 0.34, and 1.15 bar, respectively, are obtained for the developed Kapton-PSF membranes (25/75%) with the highest percentage of carbon nanotubes (8%), whose values are the highest among all the resultant membranes.

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Polymer membranes for acid gas removal from natural gas

Cited by 206 publications

References 208 publications

Novel pressure and temperature swing processes for CO2 capture using low viscosity ionic liquids

Novel pressure and temperature swing processes for CO2 capture using low viscosity ionic liquids

Biomethane Production from Biogas by Separation Using Thin‐Film Composite Membranes

The morphology and gas‐separation performance of membranes comprising multiwalled carbon nanotubes/polysulfone–Kapton

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