Abstract
CeO2 is an important energy storage material that can be used in solid fuel cells. Adding citric acid can improve the particle distribution of the pyrolytic preparation of CeO2 inside the reactor. Through Fluent, this paper investigated the pyrolysis preparation of CeO2 with the addition of citric acid by adopting the Eulerian multiphase flow model, component transportation model, and standard k-ε turbulence model. The experimental and simulation results suggest that the addition of citric acid can alter the pressure, temperature, and component distributions inside the reactor. When the mass fraction of O2 is 0.3, the concentration distribution effect of the CeO2 component is optimal and its conversation rate is the highest. When the mass fraction of citric acid is 0.04, the concentration distribution effect of the CeO2 component is the best, as witnessed by the high CeO2 concentration at the exit. It was found that an O2 content of 30 wt % and citric acid content of 4 wt % were optimal operating conditions for this technology.
Highlights
Rare earth materials can be applied in national defense, spaceflight, automobile, and medical treatment applications
CeO2 nanoparticles can be used as an accelerant for the wound healing of effective sterilization applications and medical treatments for pollutants [1]
With the addition tureabsorbs reaches its lowest value, the heat absorption is via heat in the solution via evaporative phase change, and when the temperature of citric acid, the exothermic reaction between citric acid and O2 causes the position of reaches its lowest value, the heat absorption is via CeO2 pyrolysis
Summary
Rare earth materials can be applied in national defense, spaceflight, automobile, and medical treatment applications. CeO2 nanoparticles can be used as an accelerant for the wound healing of effective sterilization applications and medical treatments for pollutants [1]. These particles can be used for solid fuel cells [2] in new environmentally friendly automobiles, as well as optical polishing [3]. This paper performs a simulation of the pyrolysis of CeO2 with added citric acid [17,18,19], explores the influence of citric acid addition concentration on the composition distribution in the reactor, and determines the optimal operating parameters for the Venturi jet flow pyrolysis technology
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