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In order to overcome the deleterious effects of calcium catalysis during thermal reactivation, the authors have developed a methodology for first steam-curing spent GAC at 548-748 K, and then ramping the furnace temperature to 1023-1223 K while exposing the GAC to flowing N 2 . In this article, the authors evaluated the influence of an array of parameters on the steam-curing plus ramped-temperature...
Tailored thermal reactivations overcame calcium catalysis by first steam-curing spent GAG at 648 K for 60 min, and then thermally treating it in nitrogen under temperatures that ramped up to 1123 K, while some H 2 O remained temporarily sorbed within the GAC pores and the furnace enclosure. Pore volume distribution measurements using the density functional theory (DFT) software package revealed...
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