Adsorption of CO2 at atmospheric pressure on activated carbons prepared from melamine-modified phenol-formaldehyde resins

Ru Ling Tseng; Feng Chin Wu; Ruey Shin Juang

doi:10.1016/j.seppur.2014.11.018

Adsorption of CO₂ at atmospheric pressure on activated carbons prepared from melamine-modified phenol-formaldehyde resins

Ru Ling Tseng
, Feng Chin Wu
, Ruey Shin Juang^*

^*Corresponding author for this work

Department of Chemical and Materials Engineering

National United University Taiwan

Research output: Contribution to journal › Journal Article › peer-review

77 Scopus citations

Abstract

Highly porous activated carbons were prepared from melamine-modified phenol-formaldehyde resins via steam activation at different activation temperatures (700-950 °C) and then used for CO₂ capture at atmospheric pressure. The porosity and surface properties of the activated carbons and their CO₂ adsorption capabilities were studied and compared with those derived from common phenol-formaldehyde resin. An adsorption capacity for CO₂ of 6.71 mol kg^-1 (29.5 wt.%) was attained at 0 °C and 1 atm and decreased significantly with increasing operating temperature. The prepared activated carbons could be well applied in temperature-swing adsorption processes. Of the three isotherm equations (Langmuir, Freundlich, and Redlich-Peterson), the adsorption of CO₂ on activated carbons could only be satisfactorily described using the three-parameter Redlich-Peterson equation.

Original language	English
Pages (from-to)	53-60
Number of pages	8
Journal	Separation and Purification Technology
Volume	140
DOIs	https://doi.org/10.1016/j.seppur.2014.11.018
State	Published - 22 01 2015

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Keywords

Activated carbons
CO adsorption
Melamine-modified phenol-formaldehyde resins
Steam activation

Access to Document

10.1016/j.seppur.2014.11.018

Cite this

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title = "Adsorption of CO2 at atmospheric pressure on activated carbons prepared from melamine-modified phenol-formaldehyde resins",

abstract = "Highly porous activated carbons were prepared from melamine-modified phenol-formaldehyde resins via steam activation at different activation temperatures (700-950 °C) and then used for CO2 capture at atmospheric pressure. The porosity and surface properties of the activated carbons and their CO2 adsorption capabilities were studied and compared with those derived from common phenol-formaldehyde resin. An adsorption capacity for CO2 of 6.71 mol kg-1 (29.5 wt.\%) was attained at 0 °C and 1 atm and decreased significantly with increasing operating temperature. The prepared activated carbons could be well applied in temperature-swing adsorption processes. Of the three isotherm equations (Langmuir, Freundlich, and Redlich-Peterson), the adsorption of CO2 on activated carbons could only be satisfactorily described using the three-parameter Redlich-Peterson equation.",

keywords = "Activated carbons, CO adsorption, Melamine-modified phenol-formaldehyde resins, Steam activation",

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AU - Tseng, Ru Ling

AU - Wu, Feng Chin

AU - Juang, Ruey Shin

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N2 - Highly porous activated carbons were prepared from melamine-modified phenol-formaldehyde resins via steam activation at different activation temperatures (700-950 °C) and then used for CO2 capture at atmospheric pressure. The porosity and surface properties of the activated carbons and their CO2 adsorption capabilities were studied and compared with those derived from common phenol-formaldehyde resin. An adsorption capacity for CO2 of 6.71 mol kg-1 (29.5 wt.%) was attained at 0 °C and 1 atm and decreased significantly with increasing operating temperature. The prepared activated carbons could be well applied in temperature-swing adsorption processes. Of the three isotherm equations (Langmuir, Freundlich, and Redlich-Peterson), the adsorption of CO2 on activated carbons could only be satisfactorily described using the three-parameter Redlich-Peterson equation.

AB - Highly porous activated carbons were prepared from melamine-modified phenol-formaldehyde resins via steam activation at different activation temperatures (700-950 °C) and then used for CO2 capture at atmospheric pressure. The porosity and surface properties of the activated carbons and their CO2 adsorption capabilities were studied and compared with those derived from common phenol-formaldehyde resin. An adsorption capacity for CO2 of 6.71 mol kg-1 (29.5 wt.%) was attained at 0 °C and 1 atm and decreased significantly with increasing operating temperature. The prepared activated carbons could be well applied in temperature-swing adsorption processes. Of the three isotherm equations (Langmuir, Freundlich, and Redlich-Peterson), the adsorption of CO2 on activated carbons could only be satisfactorily described using the three-parameter Redlich-Peterson equation.

KW - Activated carbons

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KW - Melamine-modified phenol-formaldehyde resins

KW - Steam activation

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