Kinetics Analysis of Decomposing Tributylphosphate with Non-Thermal Plasma

Abstract:

Non-thermal plasma technique can be used to degrade radioactive liquid waste involving Tributylphosphate (TBP) producing in nuclear fuel reprocessing. The dissociation reaction caused by the collision of electrons with neutral molecules can generate active radicals which play a central role in removing TBP. And the electron reacting with vapor to generate OH radicals is the key reaction in removing TBP. A model is derived from the Boltzmann equation and molecule collision theory to predicate the dissociation reaction rate coefficients. Upon comparing with available literature, the model is confirmed to be acceptably accurate in general. Reaction rate coefficients of vapor dissociation in non-thermal plasma are derived according to the Arrhenius formula.

• Periodical: Advanced Materials Research (Volumes 875-877)
• Pages: 940-946
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.875-877.940
• Online since: February 2014
• Authors: Xin Liang Wang, Zhe Meng, Fan Gu
• Keywords: Chemical Reaction Kinetics, Non-Thermal Plasma, Rate Coefficient

References

[1] W.W. Schulz, J.D. Navratil, E.A. Talbot, Science and Technology of Tributylphosphate[M], CRC Press, Boca Raton, (1986).

[2] Moussa, D., Brisset, J. L. Disposal of spent tributyl phosphate by gliding arc plasma[J]. Journal of Hazardous Materials, 2003, 102(2-3): 189-200.

DOI: 10.1016/s0304-3894(03)00069-4

[3] B. Benstaali, P. Boubert, B.G. Chéron, A. Addou, J.L. Brisset, Density and rotational temperature measurements of the OH· and NO· radicals produced by a gliding arc in humid air[J]. Plasma Chemistry and Plasma Process, 2002, 22 (4): 553–571.

DOI: 10.1023/a:1021371529955

[4] R. Peyrous, R.M. Millot, Ozone generation in oxygen by corona discharges in a point-to-plane gap subjected to a chopped DC positive voltage[J]. Journal of physics D: applied physics, 1981, 14 (12): 2237–2242.

DOI: 10.1088/0022-3727/14/12/012

[5] G. I. Font, W. L. Morgan, G. Mennenga, Cross-section and chemistry model for the simulation of c-C4F8 plasma discharges[J]. Journal of Applied Physics, 2002. 91(6): 1-9.

DOI: 10.1063/1.1448894

[6] K. Yoshida, S. Goto, H. Tagashira, C. Winstead, B. V. Mckoy, Electron transport properties and collision cross sections in C2F4[J]. Journal of Applied Physics, 2002. 91(4): 1-11.

DOI: 10.1063/1.1433189

[7] X. Wang, T. Li, F. Gu. Research on the thermal ionization model of detonation products by quantum mechanics methods[J]. Combustion, Explosion and Shock waves, 2008, 44(1): 101-109.

DOI: 10.1007/s10573-008-0014-0

[8] Y. Itikawa, Cross Sentions for Electron Collisions With Water Molecules[J]. Journal of Physical and Chemical Reference Data, 2005, 34(1): 1-22.

[9] A. Oumghar, J. C. Legrand, A. M. Diamy, N. Turillon, R. I. Ben-Aim, A kinetic study of methane conversion by a dinitrogen microwave plasma[J]. Plasma Chemistry and Plasma Processing, 1994, 14(3) 229-249.

DOI: 10.1007/bf01447080

[10] W.L. Morgan, A Critical Evaluation of Low-Energy Electron Impact Cross Sections for Plasma Processing Modeling. II: CF4, SiH4, and CH4[J]. Plasma Chemistry and Plasma Processing, 1992, 12(4): 477-493.

DOI: 10.1007/bf01447255

[11] H. ZHAO, Plasma chemistry and processing[M]. 1993, Hefei: University of Science and Technology of China Press, 66-67.

[12] The Siglo Data base, CPAT, and Kinema Software[EB/OL]. http: /www. siglo-kinema. com.