Numerical modelling of a supercritical water oxidation reactor containing a hydrothermal flame

2008 ◽  
Vol 46 (2) ◽  
pp. 149-155 ◽  
Author(s):  
C. Narayanan ◽  
C. Frouzakis ◽  
K. Boulouchos ◽  
K. Príkopský ◽  
B. Wellig ◽  
...  
Keyword(s):  
Numerical Modelling ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Supercritical Water Oxidation ◽  
Oxidation Reactor

Design of a Small-Scale Supercritical Water Oxidation Reactor. Part II: Numerical Modeling

2021 ◽  
Author(s):  
Anmol L. Purohit ◽  
John A. Misquith ◽  
Brian R. Pinkard ◽  
Stuart J. Moore ◽  
John C. Kramlich ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Small Scale ◽  
Supercritical Water Oxidation ◽  
Oxidation Reactor

scholarly journals Design of a Small-Scale Supercritical Water Oxidation Reactor. Part I: Experimental Performance and Characterization

2020 ◽  
Author(s):  
Stuart Moore ◽  
Brian Pinkard ◽  
Anmol L. Purohit ◽  
John Misquith ◽  
John Kramlich ◽  
...  
Keyword(s):  
Temperature Profile ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Small Scale ◽  
Supercritical Water Oxidation ◽  
Water Mixture ◽  
Pilot Fuel ◽  
Reaction Regime ◽  
Fuel Dilution ◽  
Oxidation Reactor

<p>A small-scale supercritical water oxidation reactor is designed and fabricated to study the destruction of hazardous wastes. The downward bulk flow is heated with the introduction of pilot fuel (ethanol/water mixture), and oxidant (H<sub>2</sub>O<sub>2</sub>/water mixture). Both streams are introduced coaxially. The fuel dilution is varied from 2 to 7 mol% ethanol/water, and the oxidant-to-fuel stoichiometric equivalence ratio (Φ<sub>AF</sub>), is varied from 1.1 to 1.5. Higher ethanol concentrations in the pilot fuel stream and operation near-stoichiometric results in a more stratified temperature profile, i.e., highest local fluid temperatures near the top and the lowest temperatures at the bottom of the reactor. Steady operation at 603.5 °C is achieved with a nominal residence time of 25.3 s at 7 mol% fuel dilution and Φ<sub>AF</sub> of 1.1. At the lowest pilot fuel dilution (2 mol%), the temperature profile is nearly uniform, approaching a distributed reaction regime.</p>

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