树脂超临界水氧化反应器设计及数值模拟

Abstract

Abstract: Supercritical water oxidation offers a viable treatment for ion exchange resins. A novel reactor coupled with heterogeneous chemical reaction and homogeneous chemical reaction is proposed, and a numerical model of this reactor based on porous media model has been established by a computational fluid dynamics method. The flow, heat transfer and chemical reaction processes in the reactor have also been investigated. Results show that organic materials are completely degraded under all working conditions and the production requirements have all been met. The outlet temperature, the maximum temperature of the fluid zone, pressure drop and outlet velocity would gradually increase with the increase of heating power.

Key words: supercritical water oxidation, reactor, numerical simulation, heterogeneous reaction

ZHANG Zhidong, CHI Xiangyu, PAN Yuelong, HE Junshan, WANG Naihua. Design and numerical simulation of a supercritical water oxidation reactor for spent resins[J].RADIATION PROTECTION, 2019, 39(5): 416-422.

References 13

[1]	Vadillo V, García-Jarana, M. Belén, et al. Simulation of real wastewater supercritical water oxidation at high concentration on a pilot plant scale[J]. Industrial & Engineering Chemistry Research, 2011, 50(22):12 512-12 520.
[2]	Sugiyama M, Tagawa S, Ohmura H, et al. Supercritical water oxidation of a carbon particle by Schlieren photography[J]. Aiche Journal, 2004, 50(9):2 082-2 089.
[3]	Vielcazals S, Mercadier J, Marias F, et al. Modeling and simulation of hydrothermal oxidation of organic compounds[J]. Aiche Journal, 2010, 52(2):818-825.
[4]	Bermejo M D, Cocero M J. Supercritical water oxidation: A technical review[J]. AIChE Journal, 2006, 52(11):3 933-3 951.
[5]	Cocero M J. 9.4 Supercritical water oxidation (SCWO). Application to industrial wastewater treatment[J]. Industrial Chemistry Library, 2001, 9:509-526.
[6]	Bermejo M D, Fdez-Polanco F, Cocero M. Effect of the transpiring wall on the behavior of a supercritical water oxidation reactor: Modeling and Experimental Results[J]. Industrial & Engineering Chemistry Research, 2006, 45(10):3 438-3 446.
[7]	Calzavara Y, Joussot-Dubien C, Turc H A, et al. A new reactor concept for hydrothermal oxidation[J]. Journal of Supercritical Fluids, 2004, 31(2):195-206.
[8]	Leybros A, Roubaud A, Guichardon P, et al. Ion exchange resins destruction in a stirred supercritical water oxidation reactor[J]. Journal of Supercritical Fluids, 2010, 51(3):369-375.
[9]	Guillermo González, Joan Salvadó, Daniel Montané. Reactions of vanillic acid in sub- and supercritical water[J]. Journal of Supercritical Fluids, 2004, 31(1):57-66.
[10]	Yermakova A, Mikenin P E, Anikeev V I. Phenol oxidation in supercritical water in a well-stirred continuous reactor[J]. Theoretical Foundations of Chemical Engineering, 2006, 40(2):168-174.
[11]	LI L X, CHEN P S, Gloyna E F. Generalized kinetic-model for wet oxidation of organic-compounds [J]. Aiche Journal, 1991, 37(11):1 687-1 697.
[12]	刘生晖, 黄彦平, 刘光旭, 等. 双D形流道内超临界二氧化碳传热特性数值研究[J]. 核动力工程, 2016,(2):56-59.LIU S H, HUANG Y P, LIU G X, et al. Numerical investigation of heat transfer characteristics of supercritical carbon dioxide in double d-shape channel[J]. Nuclear Power Engineering, 2016,(2):56-59.
[13]	Miroliaei A R, Shahraki F, Atashi H. Computational fluid dynamics simulations of pressure drop and heat transfer in fixed bed reactor with spherical particles[J]. Korean Journal of Chemical Engineering, 2011,28(6):1 474-1 479.

Design and numerical simulation of a supercritical water oxidation reactor for spent resins

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