Supercritical water oxidation of isopropanol

  1. Jezabel Sánchez-Oneto 1
  2. José Abelleira 1
  3. Daniel Roldán-Calbo 1
  4. Belén García Jarana 1
  5. Violeta Vadillo 1
  6. Juan R. Portela 1
  7. Enrique J. M. de la Ossa 1
  1. 1 Department of Chemical Engineering and Food Technologies, Faculty of Sciences, University of Cádiz, 11510 Puerto Real, Spain
Actas:
VIII Iberoamerican Conference on Phase Equilibria and Fluid Properties for Process Design - EQUIFASE 2009

Editorial: Faculdade de Enhenharia da Univeridade do Porto

ISBN: 978-989-20-1694-8

Año de publicación: 2009

Páginas: 204

Tipo: Aportación congreso

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Resumen

Supercritical Water Oxidation (SCWO) has been demonstrated to be a high-efficiency aqueous process to the destruction of organic wastes. From an economic point of view, if we take into account that the calorific demand of this process is quite high, normally its application shows feasible when the concentration of the organic waste and the heat of the supercritical water reaction of that waste are substantial elevated. Otherwise, low concentration of the waste and/or enthalpy of reaction, it is possible to use water-soluble fuels, such as ethanol or isopropanol, than could be added to the waste to help support the oxidation reaction. Some experiments related to SCWO of isopropanol has been found in the current literature, however no kinetic expressions has been published. The objective of this work was to made experiments needed for the determination of the rate equation for the SCWO of that alcohol. SCWO experiments were carried out in a continuous flow reactor system at a constant pressure of 25 MPa and a temperature range of 673-773 K. The effectiveness of the process was monitored in terms of both COD and TOC removal.