On the use of plastic precursors for preparation of activated carbons and their evaluation in CO2 capture for biogas upgrading: a review
Open accessAbstract
In circular economy, useful plastic materials are kept in circulation as opposed to being landfilled, incinerated, or leaked into the natural environment. Pyrolysis is a chemical recycling technique useful for unrecyclable plastic wastes that produce gas, liquid (oil), and solid (char) products. Although the pyrolysis technique has been extensively studied and there are several installations applying it on the industrial scale, no commercial applications for the solid product have been found yet. In this scenario, the use of plastic-based char for the biogas upgrading may be a sustainable way to transform the solid product of pyrolysis into a particularly beneficial material. This paper reviews the preparation and main parameters of the processes affecting the final textural properties of the plastic-based activated carbons. Moreover, the application of those materials for the CO2 capture in the processes of biogas upgrading is largely discussed.
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Chemical activation can achieve higher specific surface areas and larger micropore volumes than physical activation, but the chemical reagents used pose potential environmental pollution risks; physical activation excels in process simplicity and cost advantages.
“Perez-Huertas et al. noted that while chemical activation (e.g., KOH/H 3 PO 4 ) can achieve higher specific surface areas and larger micropore volumes, the chemical reagents used pose potential environmental pollution risks; physical activation excels in process simplicity and cost advantages.”
From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [112]
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Experimental — accuracy not yet measuredThe development of narrow micropores (<1 nm) is a key factor determining CO2 adsorption performance.
“The study also found that the development of narrow micropores (< 1 nm) is a key factor determining CO 2 adsorption performance [112] .”
From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [112]
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References 200 · Cited by 45
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- Lozano-Castell ´ o, D., Lillo-R ´ odenas, M.A., Cazorla-Amor ´ os, D., Linares-Solano, A., 2001. Preparation of activated carbons from Spanish anthracite: I. Activation by KOH. Carbon 39 (5), 741 -749. https://doi.org/10.1016/S0008-6223(00)00185-8. · DOI
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- Yuliusman, N., Sanal, A., Bernama, A., Haris, F., Ramadhan, I.T., 2017. Preparation of activated carbon from waste plastics polyethylene terephthalate as adsorbent in natural gas storage. IOP Conf. Series. Mater. Sci. Eng. 176, 012055 https://doi.org/ 10.1088/1757-899X/176/1/012055. · DOI
- Authors
- Pérez-Huertas, S., Calero, M., Ligero, A., Pérez, A., Terpiłowski, K., & Martín-Lara, M. A.
- Affiliations
- Universidad de Granada (ES)
- Maria Curie-Skłodowska University (PL)
- Corresponding author
- Calero, M.
- Venue
- Waste Management
- Publisher
- Elsevier BV
- Published
- 2023-04
- Volume
- 161
- Pages
- 116-141
- ISSN
- 0956-053X (ISSN-L)
- OpenAlex
- W4323050422
- Cited by
- 45
- References
- 200
- Citations by year
- 2026: 9 · 2025: 15 · 2024: 16 · 2023: 5
- FWCI
- 0.81
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Waste Management (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Institutional Repository of the University of Granada (University of Granada) (submittedVersion, cc-by-nc-nd)
- Funders
- Universidad de Granada
- Agencia Estatal de Investigación (AEI//10.13039/501100011033/, 501100011033, 10.13039/501100011033, MCIN/AEI/10.13039/501 100 011 033, 13039, .13039/501100011033, 10.13039, PID2019)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
- Keywords
- activated carbon, CO2 capture, biogas upgrading, plastic waste pyrolysis, chemical recycling, plastic waste, textural properties, circular economy
- MeSH terms
- Pyrolysis, Carbon Dioxide, Charcoal, Plastics, Biofuels
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