Title: A validated CFD model for prediction of selective non-catalytic reduction of nitric oxide by cyanuric acid

Authors: Per E.C. Burström; Dorota Antos; T. Staffan Lundström; B. Daniel Marjavaara

Addresses: Division of Fluid Mechanics, Luleå University of Technology, SE-971 87 Luleå, Sweden ' Department of Chemical Engineering and Process Control, Rzesców University of Technology, Rzeszów 35-959, al. Powstanców Warszawy 6, Poland ' Division of Fluid Mechanics, Luleå University of Technology, SE-971 87 Luleå, Sweden ' LKAB, SE-981 86 Kiruna, Sweden

Abstract: A CFD model for selective non-catalytic reduction of nitric oxide by cyanuric acid (rapid reduction of nitrogen oxides, RAPRENOx process) is compared against reactor experiments. The numerical simulations were carried out solving the flow field. A model for the RAPRENOx chemistry was then included in the model enabling a study of the chemistry in the reactor. The simulations showed that the proposed chemistry model is valid under certain conditions. There is an especially good agreement for high O2 concentrations while the model failed in reproducing the experimental data for 0% H2O.

Keywords: NO2 reduction; nitric oxide; selective non-catalytic reduction; SNCR; cyanuric acid; rapid reduction; nitrogen oxides; RAPRENO2; kinetic modelling; CFD; computational fluid dynamics; numerical simulation; injection; chemistry; sublimation; flow reactors.

DOI: 10.1504/PCFD.2016.075156

Progress in Computational Fluid Dynamics, An International Journal, 2016 Vol.16 No.2, pp.108 - 117

Received: 05 Feb 2014
Accepted: 30 Nov 2014

Published online: 05 Mar 2016 *

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