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Phenol adsorption on activated carbons: Application to the regeneration of activated carbons polluted with phenol

✍ Scribed by P. Magne; P.L. Walker Jr.

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 799 KB
Volume: 24
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(86)90102-8

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✦ Synopsis

Phenol adsorbs in two ways on activated carbons: by physisorption and chemisorption. During the course of time and by raising the tempera~re, chemiso~t~on is increased and part of the physisor~ phenoi becomes chemisorbed. This phenol is impossible to remove as such. Upon heating to elevated temperatures it decomposes, depositing carbon, resulting in a decrease in the adsorption capacity of activated carbons. By studying this, we have been able to find adsorption conditions which prevent phenol chemisorption and yield a method of 100% regeneration of phenol-polluted activated carbons.

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