Optimization of preparation process and characterization for hydrophobic α-Al2O3 ceramic membrane

Guo, Xiao; Wang, Haibo; Tian, Rui; Yin, Haojiang; Qiu, Yunfeng; Wang, Feng

doi:10.1016/j.matchemphys.2021.125280

Cited by 13 publications

(2 citation statements)

References 38 publications

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“…Even if a hydrophobic modifier modifies the membrane, the surface of the gas-liquid contact membrane is easily wetted at high temperatures. The wetting of membranes has been limiting the further development of gas-liquid contact membrane systems [19][20][21][22]. A hybrid system with a combination of non-contact membranes and bubbling absorption is proposed to address the problem of contact membranes.…”

Section: Introductionmentioning

confidence: 99%

Carbon Capture from Flue Gas Based on the Combination of Non-Contact Hydrophobic Porous Ceramic Membrane and Bubbling Absorption

Luo¹,

Jin²,

Zhang³

2023

Journal of Renewable Materials

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A hybrid system combined with a non-contact membrane and bubbling absorption is proposed to capture CO 2 from flue gas. The non-contact way of membrane and liquid absorbent effectively avoids the reduction of gas diffusion flux through the membrane. High-porosity ceramic membranes in hybrid systems are used for gas-solid separation in fuel gas treatment. Due to the high content of H 2 O and cement dust in the flue gas of the cement plant, the membrane is hydrophobically modified by polytetrafluoroethylene (PTFE) to improve its anti-water, anti-fouling, and self-cleaning performances. The results show that the diffusion flux of CO 2 through the membrane is still higher than 7.0 × 10 −3 mol/m 2 s (20% CO 2 concentration) even under the influence of water and cement dust. In addition, slaked lime selected as the absorbent is cheap and the product after bubbling absorption is nano-scale light calcium carbonate. To sum up, the hybrid system combining non-contact membrane and bubbling absorption is expected to be used to capture carbon dioxide from the flue gas of the cement plant.

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Section: Introductionmentioning

confidence: 99%

Carbon Capture from Flue Gas Based on the Combination of Non-Contact Hydrophobic Porous Ceramic Membrane and Bubbling Absorption

Luo¹,

Jin²,

Zhang³

2023

Journal of Renewable Materials

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“…Therefore, based on the measured data in Hohhot of China, we integrated adopted the control variables method, orthogonal experimental design, and stepwise linear regression method to construct the multiple regression model of n with high prediction accuracy. [31] It could be used to analyze the interaction effect laws of v, d, 𝛼, and c on the n, and reveal the deposition mechanism of aerosol particles near the PV modules. This study provided important theoretical guidance for accurately setting the operation strategy (beginning time and running duration) of PV panel cleaning devices in the Hohhot area.…”

Section: Introductionmentioning

confidence: 99%

Deposition Characteristics of Aerosol Particles on the Surface of PV Modules: Numerical Study

Qiu

Guo

Wang

et al. 2022

Advcd Theory and Sims

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The deposition of aerosol particles can significantly affect the surface transmittance of photovoltaic (PV) modules and thus reduce photoelectric efficiency. With the aid of the control variable method, orthogonal experimental design, and stepwise linear regression method, a numerical simulation study of the deposition process of aerosol particles on the surface of a PV module is carried out in this paper. The influence laws of inflow wind velocity (v), particle diameter (d), installation angle (𝜶), and particle concentration (c) on the deposition process of aerosol particles are analyzed, respectively. The deposition mechanism of aerosol particles on the surface of the PV module is disclosed, and the prediction model of deposition rate (n) is proposed. The results show that v, d, and c all positively affect n of the aerosol particles within the value ranges of each investigation variable in this study. 𝜶 positively affects n of the aerosol particles when v is less than 3.65 m s −1 . 𝜶 negatively affects the n of the aerosol particles when v is larger than 3.65 m s −1 . The prediction model could accurately predict the n of aerosol particles. This research has a theoretical guiding significance for the formulation process of cleaning strategies for the surface of PV modules.

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Molecular dynamics study on water desalination performance and related mechanism of hydrophobic α-Al2O3 ceramic membrane

Guo

Wang²,

et al. 2023

International Journal of Heat and Mass Transfer

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Optimization of preparation process and characterization for hydrophobic α-Al2O3 ceramic membrane

Cited by 13 publications

References 38 publications

Carbon Capture from Flue Gas Based on the Combination of Non-Contact Hydrophobic Porous Ceramic Membrane and Bubbling Absorption

Carbon Capture from Flue Gas Based on the Combination of Non-Contact Hydrophobic Porous Ceramic Membrane and Bubbling Absorption

Deposition Characteristics of Aerosol Particles on the Surface of PV Modules: Numerical Study

Molecular dynamics study on water desalination performance and related mechanism of hydrophobic α-Al2O3 ceramic membrane

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