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ABOUT ME
Currently at Universidad de Las Américas, Ecuador
http://investigacion.udla.edu.ec/udla_teams/katiuska-alexandrino/
PUBLICATIONS
2016
Alexandrino, Katiuska; Millera, Ángela; Bilbao, Rafael; Alzueta, María U
2-methylfuran Oxidation in the Absence and Presence of NO Journal Article
In: Flow, Turbulence and Combustion, vol. 96, no. 2, pp. 343–362, 2016, ISSN: 15731987.
@article{Alexandrino2016,
title = {2-methylfuran Oxidation in the Absence and Presence of NO},
author = {Katiuska Alexandrino and Ángela Millera and Rafael Bilbao and María U Alzueta},
url = {https://link.springer.com/article/10.1007/s10494-015-9635-z},
doi = {10.1007/s10494-015-9635-z},
issn = {15731987},
year = {2016},
date = {2016-03-01},
journal = {Flow, Turbulence and Combustion},
volume = {96},
number = {2},
pages = {343--362},
publisher = {Springer Netherlands},
abstract = {2-methylfuran (2-MF) has become of interest as biofuel because of its properties and the improvement in its production method, and also because it is an important intermediate in the conversion of 2,5-dimethylfuran. In this research, an experimental and kinetic modelling study of the oxidation of 2-MF in the absence and presence of NO has been performed in an atmospheric pressure laboratory installation. The experiments were performed in a flow reactor and covered the temperature range from 800 to 1400 K, for mixtures from very fuel-rich to very fuel-lean, highly diluted in nitrogen. The inlet 2-MF concentration was 100 ppm. In the experiments in the presence of NO, the inlet NO concentration was 900 ppm. An interpretation of the experimental results was performed through a gas-phase chemical kinetic model. A reasonable agreement between the experimental trends and the modelling data is obtained. The results of the concentration profile of 2-MF as a function of temperature indicate that, both in the absence and in the presence of NO, the onset of 2-MF consumption is shifted to lower temperatures only under fuel-lean and very fuel-lean conditions. Furthermore, under these conditions the presence of NO also shifts the onset of 2-MF consumption to lower temperatures. The effect of the 2-MF presence on the NO reduction varies with the oxygen concentration. It is seen that under very fuel-rich and stoichiometric conditions NO is reduced basically by reburn reactions, while under fuel-lean and very fuel-lean conditions, the NO-NO2 interconversion appears to be dominant.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2-methylfuran (2-MF) has become of interest as biofuel because of its properties and the improvement in its production method, and also because it is an important intermediate in the conversion of 2,5-dimethylfuran. In this research, an experimental and kinetic modelling study of the oxidation of 2-MF in the absence and presence of NO has been performed in an atmospheric pressure laboratory installation. The experiments were performed in a flow reactor and covered the temperature range from 800 to 1400 K, for mixtures from very fuel-rich to very fuel-lean, highly diluted in nitrogen. The inlet 2-MF concentration was 100 ppm. In the experiments in the presence of NO, the inlet NO concentration was 900 ppm. An interpretation of the experimental results was performed through a gas-phase chemical kinetic model. A reasonable agreement between the experimental trends and the modelling data is obtained. The results of the concentration profile of 2-MF as a function of temperature indicate that, both in the absence and in the presence of NO, the onset of 2-MF consumption is shifted to lower temperatures only under fuel-lean and very fuel-lean conditions. Furthermore, under these conditions the presence of NO also shifts the onset of 2-MF consumption to lower temperatures. The effect of the 2-MF presence on the NO reduction varies with the oxygen concentration. It is seen that under very fuel-rich and stoichiometric conditions NO is reduced basically by reburn reactions, while under fuel-lean and very fuel-lean conditions, the NO-NO2 interconversion appears to be dominant.
2015
Alexandrino, Katiuska; Millera, Ángela; Bilbao, Rafael; Alzueta, María U
Novel aspects in the pyrolysis and oxidation of 2,5-dimethylfuran Journal Article
In: Proceedings of the Combustion Institute, vol. 35, no. 2, pp. 1717–1725, 2015, ISSN: 15407489.
@article{Alexandrino2015,
title = {Novel aspects in the pyrolysis and oxidation of 2,5-dimethylfuran},
author = {Katiuska Alexandrino and Ángela Millera and Rafael Bilbao and María U Alzueta},
doi = {10.1016/j.proci.2014.06.002},
issn = {15407489},
year = {2015},
date = {2015-01-01},
journal = {Proceedings of the Combustion Institute},
volume = {35},
number = {2},
pages = {1717--1725},
publisher = {Elsevier Ltd},
abstract = {In order to contribute to the study of the behavior of 2,5-dimethylfuran (2,5-DMF), a promising biofuel to be used as fuel or additive in automotive applications, an experimental and kinetic modeling study of the pyrolysis and oxidation of 2,5-DMF has been carried out using well controlled flow reactor installations. The influence of temperature, stoichiometry, 2,5-DMF concentration, and pressure has been analyzed. A detailed chemical kinetic mechanism built from different literature sources was used to describe the pyrolysis and oxidation of 2,5-DMF under the experimental conditions studied. Results attained extend the existing experimental database on 2,5-DMF and, for the first time, its tendency to form soot is analyzed. Additionally, the effect of pressure, which would be of interest for the use of this compound as a part of diesel fuels, has been evaluated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In order to contribute to the study of the behavior of 2,5-dimethylfuran (2,5-DMF), a promising biofuel to be used as fuel or additive in automotive applications, an experimental and kinetic modeling study of the pyrolysis and oxidation of 2,5-DMF has been carried out using well controlled flow reactor installations. The influence of temperature, stoichiometry, 2,5-DMF concentration, and pressure has been analyzed. A detailed chemical kinetic mechanism built from different literature sources was used to describe the pyrolysis and oxidation of 2,5-DMF under the experimental conditions studied. Results attained extend the existing experimental database on 2,5-DMF and, for the first time, its tendency to form soot is analyzed. Additionally, the effect of pressure, which would be of interest for the use of this compound as a part of diesel fuels, has been evaluated.