Polymerization and oxidation of phenols in supercritical water
作者： Huiwen Zhang , Xiaoman Zhang , Lei Ding , Miao Gong , Ying Su
DOI: 10.2166/WST.2019.295
关键词: Supercritical water oxidation 、 Chemistry 、 Polymerization 、 Free-radical reaction 、 Partial oxidation 、 Reaction mechanism 、 Organic chemistry 、 Oxidizing agent 、 Supercritical fluid 、 Phenols
摘要: The treatment of toxic and difficult-to-degrade phenolic compounds has become a key issue in the coking, pharmaceutical, chemical industries. Considering polymerization oxidation supercritical water partial oxidation/supercritical (SCWPO/SCWO), present study reviewed removal efficiency reaction pathway waste/wastewater under different conditions. Temperature is dominant factor affecting SCWO reaction. When oxidizing ability insufficient, organics polymerize to form compounds. gradual increase oxidant equivalent causes intermediate product gradually oxidize CO2 H2O completely. Finally, free radical mechanism considered be typical mechanism.
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