Activated carbon catalyzes reactions of phenolics during liquid-phase adsorption

Various phenolic compounds in aqueous buffer solutions were contacted batchwise with powdered activated carbon. Relatively slow, but continual, decreases in the solution phenolic concentrations were measured over a period of several weeks. The decreases were due to oxidative coupling reactions of th...

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Veröffentlicht in:	AIChE journal 1994-02, Vol.40 (2), p.361-364
Hauptverfasser:	Cooney, David O., Xi, Zhenpeng
Format:	Artikel
Sprache:	eng
Schlagworte:	320305 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management 540220 - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-) ACTIVATED CARBON ADSORBENTS Adsorption Applied sciences AROMATICS CARBON CATALYTIC EFFECTS CATALYTIC REFORMING Chemical engineering CHEMICAL REACTIONS ELEMENTS ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION ENVIRONMENTAL SCIENCES Exact sciences and technology HYDROGEN COMPOUNDS HYDROXY COMPOUNDS KINETICS LIQUID WASTES NONMETALS ORGANIC COMPOUNDS OXIDATION OXYGEN COMPOUNDS PHENOLS REACTION KINETICS REFORMER PROCESSES WASTE WATER WASTES WATER WATER TREATMENT
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Beschreibung
Zusammenfassung:	Various phenolic compounds in aqueous buffer solutions were contacted batchwise with powdered activated carbon. Relatively slow, but continual, decreases in the solution phenolic concentrations were measured over a period of several weeks. The decreases were due to oxidative coupling reactions of the phenolics which occurred on the carbon surface subsequent to adsorption. The effects of time, pH, dissolved oxygen, and the molecular nature of the phenolic were determined.
ISSN:	0001-1541 1547-5905
DOI:	10.1002/aic.690400214