3 years ago

STUDY OF AN ANNULAR PHOTOREACTOR WITH TANGENTIAL INLET AND OUTLET.II. THE UV/H2O2 REACTIVE FLOW

José Carlos G. Peres, Pamela C. Tambani, Antonio Carlos S. C. Teixeira, Roberto Guardani, Ardson dos S. Vianna Jr.

Abstract

The concentration profiles of species involved in the degradation of phenol by an advanced oxidation processes (AOP) are modeled using a CFD tool, in an annular reactor whose fluid dynamics was the object of a previous study. The reactive flow was fully described together with the kinetic model, which encompasses large kinetic constants, such as 1010 L mol‐1 s‐1, and the radiation field. Phenol degradation can be simulated by using relaxation factors of 1012 kg m‐3 s‐1 at least. The hydroxyl radical concentration profile, depends on the radiation field, performed by the discrete ordinate (DO) and the discrete transfer (DT) methods. Phenol can be completely degraded along the reactor. A centrifugal effect was observed, with higher concentration of degradation products along the inner wall at the reactor outlet.

Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/ceat.201800366

DOI: 10.1002/ceat.201800366

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