Recently, catalytic oxidation in supercritical water (SCW) has
received considerable research
attention. The major thrust of this current research effort is
attributable to the rapid
development of supercritical water oxidation (SCWO) as an innovative
wastewater treatment
technology. The incentives of catalyst-enhanced processes may
include increased reaction rates,
reduced residence times and temperatures, and optimized reaction
pathways that are otherwise
difficult to achieve through noncatalytic processes. However, the
databases associated with
the use of catalysts in SCWO are limited. The purpose of this
paper is to (1) review catalytic
enhancement and technology as related to SCWO; (2) analyze effects of
SCW on catalysts and
catalytic SCWO processes; and (3) present a catalyst development
strategy for SCWO-related
applications. Catalyst activity and stability (in terms of
reaction kinetics, surface phenomena,
and phase behavior of catalysts in SCW) are emphasized. The paper
presents a useful database,
provides guidelines for catalyst selection, and illustrates how
effective use of catalyst may enhance
SCWO process development.
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