Supercritical water oxidation (SCWO) of 2-chlorophenol (2CP) is very effect
ed in the presence of 0.02 M Na+ that reduces the formation of by-products
(higher chlorinated phenols). The undesired by-products in the SCWO of 2CP
catalyzed by CuO in zeolites Y, ZSM-5, and ZSM-48 is also reduced extensive
ly. Chlorine-bonded CuO species in the channels of ZSM-5 are not observed b
y EXAFS (extended X-ray adsorption fine structure) spectroscopy.