LAPSE:2018.0921
Published Article
LAPSE:2018.0921
Phenol-Formaldehyde Resin-Based Carbons for CO₂ Separation at Sub-Atmospheric Pressures
Noelia Álvarez-Gutiérrez, María Victoria Gil, María Martínez, Fernando Rubiera, Covadonga Pevida
November 27, 2018
The challenge of developing effective separation and purification technologies that leave much smaller energy footprints is greater for carbon dioxide (CO₂) than for other gases. In addition to its involvement in climate change, CO₂ is present as an impurity in biogas and bio-hydrogen (biological production by dark fermentation), in post-combustion processes (flue gas, CO₂-N₂) and many other gas streams. Selected phenol-formaldehyde resin-based activated carbons prepared in our laboratory have been evaluated under static conditions (adsorption isotherms) as potential adsorbents for CO₂ separation at sub-atmospheric pressures, i.e., in post-combustion processes or from biogas and bio-hydrogen streams. CO₂, H₂, N₂, and CH₄ adsorption isotherms at 25 °C and up to 100 kPa were obtained using a volumetric equipment and were correlated by applying the Sips model. Adsorption equilibrium was then predicted for multicomponent gas mixtures by extending the multicomponent Sips model and the Ideal Adsorbed Solution Theory (IAST) in conjunction with the Sips model. The CO₂ uptakes of the resin-derived carbons from CO₂-CH₄, CO₂-H₂, and CO₂-N₂ at atmospheric pressure were greater than those of the reference commercial carbon (Calgon BPL). The performance of the resin-derived carbons in terms of equilibrium of adsorption seems therefore relevant to CO₂ separation in post-combustion (flue gas, CO₂-N₂) and in hydrogen fermentation (CO₂-H₂, CO₂-CH₄).
Keywords
activated carbons, Adsorption, CO2 separation, phenolic-resin
Subject
Suggested Citation
Álvarez-Gutiérrez N, Gil MV, Martínez M, Rubiera F, Pevida C. Phenol-Formaldehyde Resin-Based Carbons for CO₂ Separation at Sub-Atmospheric Pressures. (2018). LAPSE:2018.0921
Author Affiliations
Álvarez-Gutiérrez N: Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
Gil MV: Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
Martínez M: Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
Rubiera F: Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain [ORCID]
Pevida C: Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain [ORCID]
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Journal Name
Energies
Volume
9
Issue
3
Article Number
E189
Year
2016
Publication Date
2016-03-11
Published Version
ISSN
1996-1073
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Original Submission
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PII: en9030189, Publication Type: Journal Article
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LAPSE:2018.0921
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doi:10.3390/en9030189
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Nov 27, 2018
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CC BY 4.0
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Nov 27, 2018
 
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Calvin Tsay
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