Lugo Vega, Cristina S.; Moreira del Río, Jesús; Serrano Rosales, Benito; de Lasa, Hugo
Resumen:
This research reports the kinetic studies for acetone and acetaldehyde photoconversion in the gas phase
utilizing a scaled-up Photo-CREC-Air unit with TiO2. The inclusion of intermediate species in the reaction
network is required for the kinetic modeling of a wide range of oxygenate pollutant concentrations. The
proposed ‘‘in parallel-series” reaction network encompasses a Langmuir-Hinshelwood (L-H) kinetics
including species adsorption and intrinsic reaction parameters. The estimated kinetic parameters provide
a successful prediction of various measurable chemical species. It is shown that the proposed kinetic
model can be simplified, under low initial model pollutant concentrations. This is critical to avoid model
overparameterization. The proposed kinetic model while being restricted to two model pollutants (ace-
tone and acetaldehyde) and one specific photoreactor (e.g. 55.1 L Photo-CREC-Air), provides a framework
to establish the photodegradation kinetics of other organic species in air, for larger photoreactor scales.