@ARTICLE{Kotkowski_Tomasz_Adsorption_2022,
 author={Kotkowski, Tomasz and Cherbański, Robert and Molga, Eugeniusz},
 volume={vol. 43},
 number={No 1},
 journal={Chemical and Process Engineering},
 pages={57-80},
 howpublished={online},
 year={2022},
 publisher={Polish Academy of Sciences Committee of Chemical and Process Engineering},
 abstract={This work investigates adsorption of n-hexane on activated tyre pyrolysis char (ATPC) and granular activated carbon (GAC) as a reference material in a fixed-bed column. Microwave-assisted regeneration is also considered. The adsorbed amount of n-hexane on ATPC is in the range of 37–58 mg/g. Microwave-assisted desorption of ATPC samples enables the recovery of up to 95% of adsorbed n-hexane in this non-optimized microwave setup with the efficiency of microwave energy conversion into heat of only 5–6%. For the 50% breakthrough time, ATPC and GAC are able to purify the n-hexane gas volumes in the ranges of 20–90 and 935–1240 cm3/g, respectively. While adsorption kinetics is not satisfactorily described by pseudo-first and pseudo-second order kinetic models, it is very well reflected by a family of dynamic adsorption models, which are modelled with a single logistic function. Internal diffusion is likely the rate limiting step during adsorption on ATPC, while external and internal diffusion likely plays a role in adsorption to GAC. Although microwave-assisted regeneration is performed in a general purpose microwave reactor, both adsorbents show excellent performance and are very good candidates for the adsorption process. Preliminary results show that magnetite can further reduce microwave energy consumption.},
 type={Article},
 title={Adsorption of n-hexane on a low-cost adsorbent obtained from waste tyres and its microwave regeneration},
 URL={http://www.czasopisma.pan.pl/Content/123264/PDF/art04_internet.pdf},
 doi={10.24425/cpe.2022.140811},
 keywords={microwave regeneration, tyre pyrolysis char, granular activated carbon, n-hexane},
}