Using of Adsorbents Produced from Waste Polyethylene Pyrolysis Char in Adsorption of Some Aromatic Hydrocarbon Gases and Recoverability of Waste Adsorbents as Fuel

Kalem, Merve Sogancioglu; Ozeler, Bahadır

doi:10.1007/s11270-022-06050-5

Cited by 2 publications

(1 citation statement)

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“…Theoretically, any substance with a high content of carbon and low ash fraction can be used as a raw material for ACs production. The need for porous materials with high mechanical strength and large specific surface area for applications in power engineering and environmental protection has led to research development in recent years, particularly on ACs production from waste synthetic polymers [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Porous Structure of Activated Carbons Derived from Synthetic Polymers

Kwiatkowski,

Cansado,

Mourão

2024

Materials

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This paper presents original results from the unique analysis of the porous structure of activated carbons (ACs) produced through the chemical activation of polyethylene terephthalate (PET) and polyacrylonitrile (PAN), as well as from a physical mixture of both polymers. An advanced method of adsorbent surface analysis—more specifically, the new method of numerical clustering-based adsorption analysis regarding the surface heterogeneity, pore geometry and adsorption energy distribution parameters—allowed us to obtain information about the porous structure of the ACs from the synthetic polymers mentioned above. As the results showed, ACs obtained with PAN were characterised by a first adsorbed layer with the highest volume. When the surface heterogeneity, highly desirable in most advanced adsorption processes, is taken into account, the materials with the best surface properties in both potassium carbonate (K2CO3) and potassium hydroxide (KOH) activation processes were the ACs obtained with a mass proportion of PET to PAN of 1:3, which were characterised by a low degree of surface heterogeneity and a first adsorbed layer presenting a relatively large volume.

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