Mixing Technology

ENCH800045

Prerequisites

Physical Chemistry

Fluid Mechanics

Materials Science

Course Type

Elective

Credit Hours

3

Course Description

Students are able to understand the basic principles of mixing technology and apply them in designing mixing systems for various industrial applications.

Course Learning Outcomes

  • Apply the concepts of mass balance, momentum and energy, chemical engineering thermodynamics, displacement and process units, and chemical reactions in mixing processes.
  • Design and develop components of process units and mixing process systems, considering engineering, economic, energy, environmental, and sustainability aspects.

Course Content / Syllabus

  • Definition of Mixing

    • Introduction to the concept of mixing in industrial processes
    • Importance of mixing in various applications (chemical, pharmaceutical, food, etc.)
  • Basic Principles and Concepts of Mixing

    • Overview of key principles in mixing: velocity, turbulence, and mass transfer
    • Basic concepts such as homogeneity, energy input, and process efficiency
  • Mixing Mechanisms

    • Understanding the forces and processes involved in mixing
    • Mechanisms of flow, shear, diffusion, and dispersion during mixing
  • Mixing Thermodynamics

    • Thermodynamic principles relevant to mixing processes
    • Energy consumption and heat effects during mixing
  • Mixing Fluid Flow

    • Types of fluid flow in mixing: laminar vs turbulent
    • Understanding the impact of flow patterns on mixing efficiency
  • Friction in Mixing

    • Role of friction in energy dissipation during mixing
    • Methods to reduce friction for better mixing performance
  • Types of Mixing

    • Gas-Liquid Mixing: Techniques for effective gas dispersion in liquids
    • Liquid-Liquid Mixing: Mixing of immiscible liquids (e.g., emulsification)
    • Liquid-Solid Mixing: Mixing of liquids with solids (e.g., slurry formation)
    • Suspension Mixing: Keeping solid particles suspended in liquids
    • Emulsification: Formation and stabilization of emulsions
  • Mixing Techniques

    • Agitation: Mechanical stirring to enhance mixing
    • Blending: Combining different materials to achieve uniformity
    • Particle Size Reduction: Methods to decrease particle size for better mixing
    • Shear Mixing: Using shear forces for effective mixing
  • Mixing Equipment (Batch and Continuous)

    • Overview of batch and continuous mixers
    • Types of mixers: turbine, ribbon, paddle, and others
    • Drainage-type mixers and their applications
  • Mixing Monitoring and Control

    • Techniques for monitoring mixing efficiency and consistency
    • Control strategies for optimizing mixing performance (e.g., flow, speed, temperature)
  • Examples of Blending in the Chemical, Pharmaceutical, Cosmetic, and Food Industries

    • Application of mixing and blending technologies in various industries
    • Case studies on blending processes in pharmaceuticals (e.g., tablet production), food (e.g., homogenization), cosmetics (e.g., emulsions), and chemicals (e.g., polymerization)

Recommended References

  1. Paul, Edward L., Atiemo-Obeng, Victor A., & Kresta, Suzanne M. (Eds.), Handbook of Industrial Mixing: Science and Practice, John Wiley & Sons Inc., 2003.
  2. Cullen, P. J. (Ed.), Food Mixing: Principles and Applications, John Wiley & Sons Inc., 2007.
  3. Cullen, P. J. (Editor), Romañach, Rodolfo J. (Editor), Abatzoglou, Nicolas (Editor), & Rielly, Chris D., Pharmaceutical Blending and Mixing, 1st ed., John Wiley & Sons Inc., 2015.