Kinetic modelling of NO heterogeneous radiation-catalytic oxidation on the TiO2 surface in humid air under the electron beam irradiation

Nichipor, Henrietta; Sun, Yongxia; Chmielewski, Andrzej G.

doi:10.1515/nuka-2017-0034

Abstract

Theoretical study of NO_x removal from humid air by a hybrid system (catalyst combined with electron beam) was carried out. The purpose of this work is to study the possibility to decrease energy consumption for NO_x removal. The kinetics of radiation catalytic oxidation of NO on the catalyst TiO₂ surface under electron beam irradiation was elaborated. Program Scilab 5.3.0 was used for numerical simulations. Influential parameters such as inlet NO concentration, dose, gas fl ow rate, water concentration and catalyst contents that can affect NO_x removal efficiency were studied. The results of calculation show that the removal efficiency of NO_x might be increased by 8-16% with the presence of a catalyst in the gas irradiated field.

References

1. Chmielewski, A. G., Licki, J., Pawelec, A., Tymiński, B., & Zimek, Z. (2004). Operational experience of the industrial plant for electron beam fl ue gas treatment. Radiat. Phys. Chem., 71(1/2), 441-444. DOI: 10.1016/j.radphyschem.2004.03.020.10.1016/j.radphyschem.2004.03.020
Search in Google Scholar Back to article
2. Sun, Y., Zwolińska, E., & Chmielewski, A. G. (2016). Abatement technologies for high concentrations of NOx and SO2 removal from exhaust gases: A review. Crit. Rev. Environ. Sci. Technol., 46(2), 119-142. DOI: 10.1080/10643389.2015.1063334.10.1080/10643389.2015.1063334
Search in Google Scholar Back to article
3. Minachev, X. M., & Antoshin, G. V. (1973). Radiation- catalytic activity of oxygen. Proceedings of the Russian Academy of Sciences, 9, 52-60 (in Russian).
Search in Google Scholar Back to article
4. Hakoda, T., Matsumoto, K., Mizuno, A., Kojima, T., & Hirota, K. (2008). Catalytic oxidation of xylene in air using TiO2 under electron beam irradiation. Plasma Chem. Plasma Process., 28, 25-37. DOI: 10.1007/s11090-007-9114-y.10.1007/s11090-007-9114-y
Search in Google Scholar Back to article
5. Cubillos Sanabria, H. A. (2011). Heterogeneous photocatalytic oxidation of NOx under indoor conditions: experimental and simulation study. MSc thesis. Eindhoven University of Technology, Department of the Built Environment.
Search in Google Scholar Back to article
6. Yu, Q. L., Ballari, M. M., & Brouwers, H. J. H. (2010). Indoor air purifi cation using heterogeneous photocatalytic oxidation. Part II: Kinetic study. Appl. Catal. B-Environ., 99, 58-65. DOI: 10.1016/j.apcatb.2010.05.032.10.1016/j.apcatb.2010.05.032
Search in Google Scholar Back to article
7. Gladkyi, A. Yu., & Aristov, Yu. I. (1998). High radiation-chemical yield of separated electron-hole pairs in the radiolysis of dispersed magnesium oxides in presence of N2O or H2. High Energy Chemistry (Moscow), 32(3), 179-184 (in Russian).
Search in Google Scholar Back to article
8. Baranov, V. F. (1974). Electron radiation dosimetry. Moscow: Atomizdat (in Russian).
Search in Google Scholar Back to article
9. Licki, J., Chmielewski, A. G., Pawelec, A., Zimek, Z., & Witman, S. (2014). Electron beam treatment of exhaust gas with high NOx concentration. Phys. Scripta, 161, 014067(1-4). DOI: 10.1088/0031-8949/2014/T161/014067.10.1088/0031-8949/2014/T161/014067
Search in Google Scholar Back to article
10. Chmielewski, A. G., Sun, Y., Zimek, Z., Bułka, S., & Licki, J. (2002). Mechanism of NOx removal by electron beam process in the presence of scavengers. Radiat. Phys. Chem., 65, 397-403. http://dx.doi.org/10.1016/S0969-806X(02)00340-7.10.1016/S0969-806X(02)00340-7
Search in Google Scholar Back to article

Kinetic modelling of NO heterogeneous radiation-catalytic oxidation on the TiO2 surface in humid air under the electron beam irradiation

Abstract

Paradigm

My account