Hydrophobic fluorocarbon-modified silica aerogel tubular membranes with excellent CO2 recovery ability in membrane contactors

Lin, Yi‐Feng; Junmin, Chang; Ye, Qian; Tung, Kuo‐Lun

doi:10.1016/j.apenergy.2015.04.109

Cited by 43 publications

(15 citation statements)

References 19 publications

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“…It is possible that the capillary condensation of the MEA solution in the membrane pores leads to partial wetting of PVDF membrane, because the Kelvin equation predicts that unsaturated water vapour is more prone to capillary condensation in channels of adequately small size [55]. A similar deterioration of flux was reported, by Sadoogh et al [57], for the PVDF membranes in CO 2 absorption in a diethanolamine (DEA) solution [56]. But, the capillary condensation of the MEA solution in the membrane pores will happen to modify PVDF hollow membranes too.…”

Section: Long-term Co 2 Absorption Performance Of Original and Modified Pvdf Membranesupporting

confidence: 68%

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Surface modification of poly(vinylidene fluoride) hollow fibre membranes for biogas purification in a gas–liquid membrane contactor system

Jin

Huang

et al. 2017

R. Soc. open sci.

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The wetting of hollow fibre membranes decreases the performance of the liquid–gas membrane contactor for CO2 capture in biogas upgrading. To solve this problem, in this work, a poly(vinylidene fluoride) (PVDF) hollow fibre membrane for a liquid–gas membrane contactor was coated with a superhydrophobic layer composed of a combination of hydrophobic SiO2 nanoparticles and polydimethylsiloxane (PDMS) by the method of spray deposition. A rough layer of SiO2 deposited on the PVDF membrane resulted in an enhanced surface hydrophobicity. The surface structure of the pristine PVDF significantly affected the homogeneity of the generated SiO2 layer. A uniform surface coating on the PVDF upper layer resulted from the presence of micrometre and nanometre-sized roughness on the surface of the PVDF membrane, which was achieved with a SiO2 concentration of 4.44 mg ml−1 (0.2 g/45 ml) in the coating solution. As a result, the water contact angle of the modified surface was recorded as 155 ± 3°, which is higher than that of the pristine surface. The high contact angle is advantageous for reducing the wetting of the membrane. Additional mass transfer resistance was introduced by the superhydrophobic layer. In addition, continuous CO2 absorption tests were carried out in original and modified PVDF hollow fibre membrane contactors, using monoethanolamine (MEA) solution as the absorbent. A long-term stability test revealed that the modified PVDF hollow fibre membrane contactor was able to outperform the original membrane contactor and demonstrated outstanding long-term stability, suggesting that spray deposition is a promising approach to obtain superhydrophobic PVDF membranes for liquid–gas membrane absorption.

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Section: Long-term Co 2 Absorption Performance Of Original and Modified Pvdf Membranesupporting

confidence: 68%

“…A similar deterioration of flux was reported, by Sadoogh et al . [ 57 ], for the PVDF membranes in CO 2 absorption in a diethanolamine (DEA) solution [ 56 ]. But, the capillary condensation of the MEA solution in the membrane pores will happen to modify PVDF hollow membranes too.…”

Section: Resultsmentioning

confidence: 99%

Surface modification of poly(vinylidene fluoride) hollow fibre membranes for biogas purification in a gas–liquid membrane contactor system

Jin

Huang

et al. 2017

R. Soc. open sci.

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“…[447][448][449][450][451]453,454,456,458,459,[463][464][465][466][467]472,473,475,[478][479][480]482,483,[484][485][486][487][488][489]496,497,[500][501][502]505,506,508,513,514,516,517,519,521,523,524,528,533,538,543]. One of the reasons for the low popularity of hydrophilic membranes is the low thermal and chemical stability of membranes, which in turn has an effect on the flux, demonstrated in Table…”

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confidence: 99%

CO2 capture using membrane contactors: a systematic literature review

Hafeez

Safdar

Pallari

et al. 2020

Front. Chem. Sci. Eng.

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With fossil fuel being the major source of energy, CO2 emission levels need to be reduced to a minimal amount namely from anthropogenic sources. Energy consumption is expected to rise by 48% in the next 30 years, and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis. Nonetheless, exploring CO2 capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post- and pre-combustion of CO2. A systematic review of the literature has been conducted to analyse and assess CO2 removal using membrane contactors for capturing techniques in industrial processes. The review began with a total of 2650 papers, which were obtained from three major databases, and then were excluded down to a final number of 525 papers following a defined set of criteria. The results showed that the use of hollow fibre membranes have demonstrated popularity, as well as the use of amine solvents for CO2 removal. This current systematic review in CO2 removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work. This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO2.

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“…Lin et al [141] evaluated Polaris TM thin film composite membrane for CO 2 separation from syngas. e membrane system processed about 227 kg/h of syngas and reported 95% of liquid CO 2 produced.…”

Section: Significant and Scalable Strategymentioning

confidence: 99%

Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

Okoro

Josephs

Sanni

et al. 2021

International Journal of Chemical Engineering

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The adoption of nanodoped membranes in the areas of gas stream separation, water, and wastewater treatments due to the physical and operational advantages of such membranes has significantly increased. The literature has shown that the surface structure and physicochemical properties of nanodoped membranes contribute significantly to the interaction and rejection characteristics when compared to bare membranes. This study reviews the recent developments on nanodoped membranes, and their hybrids for carbon capture and gas separation operations. Features such as the nanoparticles/materials and hybrids used for membrane doping and the effect of physicochemical properties and water vapour in nanodoped membrane performance for carbon capture are discussed. The highlights of this review show that nanodoped membrane is a facile modification technique which improves the membrane performance in most cases and holds a great potential for carbon capture. Membrane module design and material, thickness, structure, and configuration were identified as key factors that contribute directly, to nanodoped membrane performance. This study also affirms that the three core parameters satisfied before turning a microporous material into a membrane are as follows: high permeability and selectivity, ease of fabrication, and robust structure. From the findings, it is also observed that the application of smart models and knowledge-based systems have not been extensively studied in nanoparticle-/material-doped membranes. More studies are encouraged because technical improvements are needed in order to achieve high performance of carbon capture using nanodoped membranes, as well as improving their durability, permeability, and selectivity of the membrane.

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Hydrophobic fluorocarbon-modified silica aerogel tubular membranes with excellent CO2 recovery ability in membrane contactors

Cited by 43 publications

References 19 publications

Surface modification of poly(vinylidene fluoride) hollow fibre membranes for biogas purification in a gas–liquid membrane contactor system

Surface modification of poly(vinylidene fluoride) hollow fibre membranes for biogas purification in a gas–liquid membrane contactor system

CO2 capture using membrane contactors: a systematic literature review

Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

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