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Fixed bed membrane reactors for ultrapure hydrogen production: modeling approach

Fixed bed membrane reactors for ultrapure hydrogen production: modeling approach

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This chapter deals with the modeling approach toward membrane reactors, making a short overview on the most significative findings in the specialized literature. In detail, 1-D, 2-D, and 3-D models are analyzed, pointing out the role of such parameters as the membrane permeability mechanism and hydrogen flux, reaction kinetics, and heat and mass transport inside the reactor and within the catalyst pellets, able of influencing the accuracy of the model.

Chapter Contents:

  • Abstract
  • 8.1 Introduction
  • 8.2 Modeling an MR
  • 8.2.1 Tubular reactor modeling
  • 8.2.1.1 Mass balance
  • 8.2.1.2 Concentration polarization
  • 8.2.1.3 Energy balance
  • 8.2.1.4 Momentum balance
  • 8.3 Literature models
  • 8.3.1 One-dimensional and two-dimensional models
  • 8.3.2 Tri-dimensional (3D) models
  • 8.3.3 Effect of the operating conditions
  • 8.3.4 Performance improvement
  • 8.4 Conclusions and future trends
  • Nomenclature
  • References

Inspec keywords: heat transfer; chemical reactors; permeability; hydrogen production; mass transfer; reaction kinetics; membranes; catalysts

Other keywords: 1D model; ultrapure hydrogen production; 2D model; mass transport; heat transport; hydrogen flux; reaction kinetics; 3D model; catalyst pellets; membrane permeability mechanism; fixed-bed membrane reactors

Subjects: Production equipment; Hydrogen storage and technology; Chemical industry; Industrial processes; Fuel processing industry; Hydrogen fuel

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