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On the Standardization of the Photocatalytic Gas/Solid Tests

  • Claudio Minero EMAIL logo , Andrea Bedini and Marco Minella
Published/Copyright: June 20, 2013
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 11 Issue 2

Abstract

The central problem for standardization of photocatalytic efficiency of whatever substrate on an illuminated catalyst is the rate evaluation. For gas/solid experiments different reactors, like batch or flow-through either continuous stirred-tank reactor (CSTR) or plug flow reactor (PFR), could be envisaged. The basic equations governing these reactors and the rate expression for them are presented here. Experiments show that a CSTR configuration presents a lot of advantages for practical use, as any volume, any shape of catalyst and any flow of gas into the reactor can possibly be used. A CSTR configuration is superior to the standardized PFR as the resistance to mass transfer can be reduced by inside forced ventilation. Consequently, it gives an evaluation of the photocatalytic rate more close to the actual surface one. The rate for CSTR at steady state must be calculated as r(Co) = Co F η/S(1−η), where η is the conversion.

Keywords: photocatalysis; standardization; ISO; CEN; nitric oxide

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Published Online: 2013-06-20

©2013 by Walter de Gruyter Berlin / Boston

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Editorial
  4. In Honor of Alberto E. Cassano: Researcher, Engineer, and Academic
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  6. From Ideal Reactor Concepts to Reality: The Novel Drum Reactor for Photocatalytic Wastewater Treatment
  7. Synthesis, Characterization, and Comparison of Sol–Gel TiO2 Immobilized Photocatalysts
  8. Determination of Kinetic Parameter in a Unified Kinetic Model for the Photodegradation of Phenol by Using Nonlinear Regression and the Genetic Algorithm
  9. Mass Transfer and Conservation from a Finite Source to an Infinite Media
  10. Modelling and Simulation of Gas–liquid Hydrodynamics in a Rectangular Air-lift Reactor
  11. Two-Dimensional Modeling of an Externally Irradiated Slurry Photoreactor
  12. Role of Aspect Ratio and Joule Heating within the Fluid Region Near a Cylindrical Electrode in Electrokinetic Remediation: A Numerical Solution based on the Boundary Layer Model
  13. Solar Water Disinfection Using NF-codoped TiO2 Photocatalysis: Estimation of Scaling-up Parameters
  14. A Simple and Semi-Empirical Model to Predict THMs Generation in Water Facilities Including pH Effects
  15. On the Standardization of the Photocatalytic Gas/Solid Tests
  16. Microalgae Technology: A Patent Survey
  17. Influence of Physical and Optical Parameters on 2,4-Dichlorophenol Degradation
  18. Factors Capable of Modifying the Response of Pseudomonas aeruginosa to the Inactivation Induced by Heterogeneous Photocatalysis
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  20. Determination of Photochemical, Electrochemical and Photoelectrochemical Efficiencies in a Photoelectrocatalytic Reactor
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https://doi.org/10.1515/ijcre-2012-0045
Keywords for this article
photocatalysis; standardization; ISO; CEN; nitric oxide

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Editorial
  4. In Honor of Alberto E. Cassano: Researcher, Engineer, and Academic
  5. Articles
  6. From Ideal Reactor Concepts to Reality: The Novel Drum Reactor for Photocatalytic Wastewater Treatment
  7. Synthesis, Characterization, and Comparison of Sol–Gel TiO2 Immobilized Photocatalysts
  8. Determination of Kinetic Parameter in a Unified Kinetic Model for the Photodegradation of Phenol by Using Nonlinear Regression and the Genetic Algorithm
  9. Mass Transfer and Conservation from a Finite Source to an Infinite Media
  10. Modelling and Simulation of Gas–liquid Hydrodynamics in a Rectangular Air-lift Reactor
  11. Two-Dimensional Modeling of an Externally Irradiated Slurry Photoreactor
  12. Role of Aspect Ratio and Joule Heating within the Fluid Region Near a Cylindrical Electrode in Electrokinetic Remediation: A Numerical Solution based on the Boundary Layer Model
  13. Solar Water Disinfection Using NF-codoped TiO2 Photocatalysis: Estimation of Scaling-up Parameters
  14. A Simple and Semi-Empirical Model to Predict THMs Generation in Water Facilities Including pH Effects
  15. On the Standardization of the Photocatalytic Gas/Solid Tests
  16. Microalgae Technology: A Patent Survey
  17. Influence of Physical and Optical Parameters on 2,4-Dichlorophenol Degradation
  18. Factors Capable of Modifying the Response of Pseudomonas aeruginosa to the Inactivation Induced by Heterogeneous Photocatalysis
  19. Enhanced Antibacterial Activity of CeO2 Nanoparticles by Surfactants
  20. Determination of Photochemical, Electrochemical and Photoelectrochemical Efficiencies in a Photoelectrocatalytic Reactor
  21. Correlations between Molecular Descriptors from Various Volatile Organic Compounds and Photocatalytic Oxidation Kinetic Constants
  22. Role of Joule Heating in Electro-Assisted Processes: A Boundary Layer Approach for Rectangular Electrodes
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