High-pressure separation of CH4/CO2 using activated carbon

Grande, Carlos A.; Blom, Richard; Möller, Andreas; Möllmer, Jens

doi:10.1016/j.ces.2012.11.024

Cited by 73 publications

(55 citation statements)

References 55 publications

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“…2 We shall see how also these data can be used to give accurate thermodynamic data for the adsorbed phase.…”

Section: Thermodynamic Relationsmentioning

confidence: 99%

“…The heats of adsorption from the different techniques will be calculated and compared with experimental data for CO 2 and CH 4 adsorption on activated carbon. 2 After the discussion, we summarize the important findings and conclude the paper.…”

mentioning

confidence: 99%

“…2 The authors reported that the different models yielded enthalpies of adsorption ranging from -19.7 to -23.8 kJ/mol for CO 2 , and -16.4 to -17.1 kJ/mol for CH 4 .…”

mentioning

confidence: 99%

“…This route to central thermodynamic properties has so far been little explored from this basis, and we shall see that it offers high precision in the processed data. As examples for illustration of the method, we shall take recent results from MD simulations of CO 2 on graphite (using the small system method), and experimental results for CO 2 and CH 4 on an activated carbon.…”

mentioning

confidence: 99%

“…Grande et al employed multi-site Langmuir, virial-and Sips models to describe isotherms for CO 2 or CH 4 on activated carbon type Maxorb (Kansai Coke and Chemicals, Japan) at high pressures. 2 The authors reported that the different models yielded enthalpies of adsorption ranging from -19.7 to -23.8 kJ/mol for CO 2 , and -16.4 to -17.1 kJ/mol for CH 4 .…”

mentioning

confidence: 99%

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A procedure to find thermodynamic equilibrium constants for CO₂ and CH₄ adsorption on activated carbon

Trinh

Erp

Bedeaux

et al. 2015

Phys. Chem. Chem. Phys.

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Thermodynamic equilibrium for adsorption means that the chemical potential of gas and adsorbed phase are equal. A precise knowledge of the chemical potential is, however, often lacking, because the activity coefficient of the adsorbate is not known. Adsorption isotherms are therefore commonly fitted to ideal models such as the Langmuir, Sips or Henry models. We propose here a new procedure to find the activity coefficient and the equilibrium constant for adsorption which uses the thermodynamic factor. Instead of fitting the data to a model, we calculate the thermodynamic factor and use this to find first the activity coefficient. We show, using published molecular simulation data, how this procedure gives the thermodynamic equilibrium constant and enthalpies of adsorption for CO 2 (g) on graphite. We also use published experimental data to find similar thermodynamic properties of CO 2 (g) and of CH 4 (g) adsorbed on activated carbon. The procedure gives a higher accuracy in the determination of enthalpies of adsorption than ideal models do.

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“…2 We shall see how also these data can be used to give accurate thermodynamic data for the adsorbed phase.…”

Section: Thermodynamic Relationsmentioning

confidence: 99%

mentioning

confidence: 99%

“…2 The authors reported that the different models yielded enthalpies of adsorption ranging from -19.7 to -23.8 kJ/mol for CO 2 , and -16.4 to -17.1 kJ/mol for CH 4 .…”

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

A procedure to find thermodynamic equilibrium constants for CO₂ and CH₄ adsorption on activated carbon

Trinh

Erp

Bedeaux

et al. 2015

Phys. Chem. Chem. Phys.

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Metal–Organic Frameworks and Their Hybrid Composites for Adsorption of Volatile Organic Compounds

Santoso

Angkawijaya

Bundjaja

et al. 2020

Applications of Metal–Organic Frameworks and Their Derived Materials

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Environmental pollution caused by anthropogenic emissions is a growing concern throughout the world; volatile organic compounds (VOCs) are the main constituents that make up the emissions. In handling VOCs, adsorption is considered the most efficient method to date. Engineers have been intensively studied the synthesis and usage of metal-organic frameworks (MOF) as versatile adsorbents for many types of VOC. Improving adsorption efficiency and performance is a routine agenda in the development of the MOF; prior to achieving an efficient MOFs as VOCs adsorbents, insight to MOF-key features such as structure, pore, and the functional group is very crucial. To this end, several topics related to adsorption of VOCs by MOF is discussed; specifically, the adsorption performance of some MOFs against VOCs, the effect of some key-features of MOF to the adsorption performance, the development of MOF composite for improvement of adsorption performance, analytical method for modeling the adsorption, and factors influencing the adsorption performance.

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PSA Technology for H2 Separation

Grande

2016

Hydrogen Science and Engineering : Materials, Processes, Systems and Technology

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High-pressure separation of CH4/CO2 using activated carbon

Cited by 73 publications

References 55 publications

A procedure to find thermodynamic equilibrium constants for CO₂ and CH₄ adsorption on activated carbon

A procedure to find thermodynamic equilibrium constants for CO₂ and CH₄ adsorption on activated carbon

Metal–Organic Frameworks and Their Hybrid Composites for Adsorption of Volatile Organic Compounds

PSA Technology for H2 Separation

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High-pressure separation of CH4/CO2 using activated carbon

Cited by 73 publications

References 55 publications

A procedure to find thermodynamic equilibrium constants for CO2 and CH4 adsorption on activated carbon

A procedure to find thermodynamic equilibrium constants for CO2 and CH4 adsorption on activated carbon

Metal–Organic Frameworks and Their Hybrid Composites for Adsorption of Volatile Organic Compounds

PSA Technology for H2 Separation

Contact Info

Product

Resources

About

A procedure to find thermodynamic equilibrium constants for CO₂ and CH₄ adsorption on activated carbon

A procedure to find thermodynamic equilibrium constants for CO₂ and CH₄ adsorption on activated carbon