Factors for improving the performance of the separation membranes prepared by the blending of polyvinyl alcohol and a water absorbing agent

Ito, Fuminori; Nishiyama, Yuriko; Sugimoto, Rie; Mori, Misato; Yamada, Hidetaka

doi:10.1080/25740881.2020.1826521

Cited by 3 publications

(6 citation statements)

References 27 publications

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“…By contrast, the water absorbency of PVA/SF/PAANa was slightly lower than that of SF and PAANa. The water absorbency of PVA at 40°C is lower than that of the water‐absorbing agent 24 . Therefore, the result was owing to the inclusion of PVA in the membrane material.…”

Section: Resultsmentioning

confidence: 97%

“…Under these experimental conditions, the pressure ratio of the feed to the permeate was sufficient to provide an ideal separation factor (selectivity). The permeance ( Q ) and selectivity (

α_{{CO}_{2} / He}

) parameters were calculated using Equations (1) and (2) as follows 12,20–24 :

Q_{i} goodbreak= \frac{{italicFy}_{i}}{A \times ((), P_{f} x_{i} goodbreak- P_{p} y_{i}) .}

and

α_{{CO}_{2} / He} goodbreak= \frac{y_{{CO}_{2}} / y_{He}}{x_{{CO}_{2}} / x_{He}}

where Q i is the permeance of gas i [m 3 (STP)/(m 2 s Pa)],

α_{{CO}_{2} / He}

is the CO 2 /He separation factor (selectivity), F is the total flow rate of the sweep gas [m 3 (STP)/s], A is the effective membrane area (m 2 ), P f and P p are the pressures (Pa) of the feed and permeate sides of the cell, respectively, and x and y represent the mole fractions of the feed and permeate sides of the cell, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The apparatus used for conducting performance tests on the prepared separation membrane was a device similar to that used in previously reported papers. 12,[20][21][22][23][24]29 The membrane composed of PVA/SF/ PAANa was first set to a cell for evaluation, and the cell and a stainless-steel pipe in a heating furnace were then connected. After heating the cell to 85 C, a humidified (50% RH) atmosphere was induced, and a CO 2 /He (80/20 by vol.)…”

Section: Performance Tests Of the Prepared Co 2 Separation Membranementioning

confidence: 99%

“…Under these experimental conditions, the pressure ratio of the feed to the permeate was sufficient to provide an ideal separation factor (selectivity). The permeance (Q) and selectivity (α CO2=He ) parameters were calculated using Equations ( 1) and ( 2) as follows 12,[20][21][22][23][24] :…”

Section: Performance Tests Of the Prepared Co 2 Separation Membranementioning

confidence: 99%

“…For these reasons, the development of polymeric membranes for CO 2 separation has been actively pursued 15–19 . With this background, we have recently been working on the development of new polymeric membranes for CO 2 separation 20–24 …”

Section: Introductionmentioning

confidence: 99%

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Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO₂ capture

Ito

Sugimoto

Mori

et al. 2022

Polymers for Advanced Techs

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Composite polymer membranes were prepared using carbonate, polyvinyl alcohol, an acrylic acid polymer partial sodium salt cross-linked product, and sodium polyacrylate.In this study, the factors for further improving the separation performance of these membranes for the CO 2 /He mixed gas were investigated. It was confirmed that the prepared membranes did not provide stable separation under pressure unless they had a thickness of 2.0 μm. Moreover, they could not function as high-performance separation membranes without a carbonate additive; the optimal carbonate concentration range was determined by considering the effect of the total pressure. As a result, this work produced a high-performance, CO 2 selective permeable membrane with selectivities of more than 500 and 150 at 0.1 and 0.7 MPa, respectively, for the separation of a CO 2 /He (80/20) gas mixture at 85 C.

show abstract

Section: Resultsmentioning

confidence: 97%

“…Under these experimental conditions, the pressure ratio of the feed to the permeate was sufficient to provide an ideal separation factor (selectivity). The permeance ( Q ) and selectivity (

α_{{CO}_{2} / He}

) parameters were calculated using Equations (1) and (2) as follows 12,20–24 :

Q_{i} goodbreak= \frac{{italicFy}_{i}}{A \times ((), P_{f} x_{i} goodbreak- P_{p} y_{i}) .}

and

α_{{CO}_{2} / He} goodbreak= \frac{y_{{CO}_{2}} / y_{He}}{x_{{CO}_{2}} / x_{He}}

where Q i is the permeance of gas i [m 3 (STP)/(m 2 s Pa)],

α_{{CO}_{2} / He}

Section: Methodsmentioning

confidence: 99%

Section: Performance Tests Of the Prepared Co 2 Separation Membranementioning

confidence: 99%

Section: Performance Tests Of the Prepared Co 2 Separation Membranementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO₂ capture

Ito

Sugimoto

Mori

et al. 2022

Polymers for Advanced Techs

Self Cite

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show abstract

Selective CO₂ permeation properties of a membrane composed of a three-component polymer blend and cesium carbonate

Ito

Yamada

2023

Soft Materials

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Effect of process conditions on CO ₂ permeance and selectivity of polyvinyl alcohol/sodium polyacrylate membrane

Ito,

Yamada

2024

Polymer-Plastics Technology and Materials

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Factors for improving the performance of the separation membranes prepared by the blending of polyvinyl alcohol and a water absorbing agent

Cited by 3 publications

References 27 publications

Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO₂ capture

Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO₂ capture

Selective CO₂ permeation properties of a membrane composed of a three-component polymer blend and cesium carbonate

Effect of process conditions on CO ₂ permeance and selectivity of polyvinyl alcohol/sodium polyacrylate membrane

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Factors for improving the performance of the separation membranes prepared by the blending of polyvinyl alcohol and a water absorbing agent

Cited by 3 publications

References 27 publications

Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO2 capture

Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO2 capture

Selective CO2 permeation properties of a membrane composed of a three-component polymer blend and cesium carbonate

Effect of process conditions on CO 2 permeance and selectivity of polyvinyl alcohol/sodium polyacrylate membrane

Contact Info

Product

Resources

About

Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO₂ capture

Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high‐performance CO₂ capture

Selective CO₂ permeation properties of a membrane composed of a three-component polymer blend and cesium carbonate

Effect of process conditions on CO ₂ permeance and selectivity of polyvinyl alcohol/sodium polyacrylate membrane