CFD Simulation for Separation of Carbon Dioxide-Methane Mixture by Pressure Swing Adsorption

Rambabu, K.; Muruganandam, L.; Velu, S.

doi:10.1155/2014/402756

Cited by 19 publications

(8 citation statements)

References 16 publications

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“…This proved the goodness and reliability of Gompertz model in estimating the impact of nano metal oxides on biohydrogen production from the anaerobic digestion of RMWW. Moreover the theoretical maximal values were consistent with their respective experimental equivalents for the both NPs additives which is a clear indication of the fact that other fermentation parameters were also in line with their optimized values(Rambabu et al, 2014). Thus, easy and efficient techniques for biohydrogen production enrichment would transfer the fermentation technology from lab scale to industrial scale to cater the growing energy demand.…”

supporting

confidence: 79%

Augmented biohydrogen production from rice mill wastewater through nano-metal oxides assisted dark fermentation

Rambabu

Bharath

Arumugham

et al. 2021

Bioresource Technology

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supporting

confidence: 79%

Augmented biohydrogen production from rice mill wastewater through nano-metal oxides assisted dark fermentation

Rambabu

Bharath

Arumugham

et al. 2021

Bioresource Technology

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“…The 2D and 3D design for the fixed bed adsorption model is illustrated in Figure 1 and 2, respectively. Similar geometrical model was widely used to measure the adsorption inside a packed bed reactor and achieved similar result with experimental study [14][15][16][17][18].…”

Section: Methodology 21 Model Geometrysupporting

confidence: 57%

CFD Simulation of CO2 and Methane Adsorption at Various Temperature for MOF-5 using Dual-site and Single-site Langmuir Model

Zulkifli

Mukhtar

Fadli

et al. 2021

CFDL

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The annual increase in energy demand has led to an increase in greenhouse gas emissions, in particular CO2 emissions from the power generation industry. Carbon Capture and Utilization are technologies applied to capture CO2 gases and transform the gases into a different energy source. The adsorption technology to capture CO2 gases was chosen due to the minimum energy consumption and low costs required for an industrial application for sustainability. Metal-Organic Framework (MOF) has a reasonably high CO2 adsorption capability. It has been applied as an adsorbent for capturing and storing CO2. In this study, a comparison of CFD simulation with experimental CO2 and methane adsorption values in solid adsorbent beds containing MOF-5 at various temperatures was presented. The simulation was performed using 2D and 3D models from 0℃ at STP to 130℃ for CO2 and methane gas molecules. In addition, the isothermal and kinetic adsorption model was added to the simulations. This includes Single- and Dual-Site Langmuir adsorption isotherm and Linear Driving Force. The porous media model was then activated to imitate packed bed adsorbent and measured the pressure drop from the simulation. The results showed that the CO2 adsorption values of MOF-5 decrease as the adsorbent temperature increases. There was a decline of 0.002 mmol/g of adsorbed CO2 molecules per 10-kelvin difference. The CO2 adsorption value was 0.53 mmol/g at STP and 1.15 mmol/g for CH4 at STP. Both CO2 and CH4 adsorption were used to suggest optimal CO2 adsorption for the Pressure Swing Adsorption cycle.

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“…The addition of Fe-NPs has been extensively introduced in the PES matrix to produce composite membranes. For instance, ref. 91 prepared a PES/Fe-NP HF membrane by introducing magnetite NPs in the PES matrix, which led to an improvement in hydrophilicity with the WCA decreasing from 62.22° to 49.27° when the content of NPs was 2 wt%.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in hydrophilic modification and performance of polyethersulfone (PES) membrane via additive blending

2018

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The blending of additives in the polyethersulfone (PES) matrix is an important approach in the membrane industry to reduce membrane hydrophobicity and improve the performance (flux, solute rejection, and reduction of fouling). Several (hydrophilic) modifications of the PES membrane have been developed.Given the importance of the hydrophilic modification methods for PES membranes and their applications, we decided to dedicate this review solely to this topic. The types of additives embedded into the PES matrix can be divided into two main categories: (i) polymers and (ii) inorganic nanoparticles (NPs). The introduced polymers include polyvinylpyrrolidone, chitosan, polyamide, polyethylene oxide, and polyethylene glycol. The introduced nanoparticles discussed include titanium, iron, aluminum, silver, zirconium, silica, magnesium based NPs, carbon, and halloysite nanotubes. In addition, the applications of hydrophilic PES membranes are also reviewed. Reviewing the research progress in the hydrophilic modification of PES membranes is necessary and imperative to provide more insights for their future development and perhaps to open the door to extend their applications to other more challenging areas. IntroductionPolyethersulfone (PES) is a recognized polymeric material, which is widely employed in the fabrication of membranes for various applications. Due to its high glass transition temperature (225 C), and amorphous and transparent properties, PES possesses a high mechanical and hydrolytic stability, thermal and chemical resistance, and outstanding oxidative characteristics, 1 making it ideal for the preparation of asymmetric membranes with different surfaces and pore sizes. 1-3Asymmetric PES membranes are generally prepared via a phaseseparation method. The nal membrane properties and performance are inuenced by the composition (additives, View Article OnlineView Journal | View Issue concentration, and solvent), temperature of the doping solution, the non-solvent or the mixture of non-solvents, and the coagulation bath or the environment. 4 The risk of the fouling effect due to the high hydrophobicity of PES, especially in protein-contacting applications and aqueous ltrations, limits their wide applications.2,3 Numerous research studies have reported efforts to enhance the hydrophilicity of the PES membrane surface. 1,5Basically, the water contact angle (WCA) formed between the membrane-liquid boundary and liquid-gas tangent is generally employed to evaluate the hydrophilic properties of the membrane.6 Commercial PES membranes are hydrophobic in nature with high mechanical, chemical, and thermal stability. 7Usually, these membranes possesses high WCA values and are prone to solute adsorption from various feed streams. It has been well documented that membranes with hydrophilic surfaces are less prone to the fouling effect with microorganisms and organic substances due to: (i) a decreased interaction between the membrane surface and foulant, and (ii) no interaction of hydrogen bonds in the boundary layer betw...

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CFD Simulation for Separation of Carbon Dioxide-Methane Mixture by Pressure Swing Adsorption

Cited by 19 publications

References 16 publications

Augmented biohydrogen production from rice mill wastewater through nano-metal oxides assisted dark fermentation

Augmented biohydrogen production from rice mill wastewater through nano-metal oxides assisted dark fermentation

CFD Simulation of CO2 and Methane Adsorption at Various Temperature for MOF-5 using Dual-site and Single-site Langmuir Model

Recent advances in hydrophilic modification and performance of polyethersulfone (PES) membrane via additive blending

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