Courses

Course

Mass Transfer Operations I

Indian Institute of Technology Guwahati

Mass Transfer Operations I is designed to provide students with a comprehensive understanding of mass transfer principles and their applications in various engineering contexts. The course covers:

  • Fundamental concepts of mass transfer and diffusion.
  • Molecular diffusion in different states and systems, including gases, liquids, and solids.
  • Mass transfer coefficients and their significance in various flow conditions.
  • Equipment for gas-liquid operations, such as agitated vessels and packed towers.
  • Theory and modeling of absorption and distillation processes, including multicomponent systems.

The course is structured logically, addressing each topic with relevant examples and practical applications. By the end, students will have a solid theoretical and analytical foundation to tackle complex mass transfer problems.

Course Lectures
  • Mod-01 Lec-01 Introduction to Mass Transfer
    Mod-01 Lec-01 Introduction to Mass Transfer
    Dr. B. Mandal
    Play

    This module introduces the fundamental concepts of mass transfer, focusing on its significance in engineering applications. Students will explore:

    • The definition and importance of mass transfer.
    • The different modes through which mass transfer occurs.
    • Applications of mass transfer concepts in various engineering fields.

    Emphasis will be placed on understanding the basic principles that govern mass transfer operations, setting the stage for more advanced topics that follow.

  • Mod-01 Lec-02 Molecular Diffusion
    Mod-01 Lec-02 Molecular Diffusion
    Dr. B. Mandal
    Play

    This module focuses on molecular diffusion, a key aspect of mass transfer, covering various topics:

    • Definition and significance of molecular diffusion.
    • Factors affecting diffusion in gases, liquids, and gels.
    • Practical applications of molecular diffusion in engineering.

    This foundation will help students understand how molecules move through different mediums and the implications of these processes in industrial applications.

  • Mod-01 Lec-03 Fick's Law of Diffusion
    Mod-01 Lec-03 Fick's Law of Diffusion
    Dr. B. Mandal
    Play

    In this module, students will delve into Fick's Law, which describes the relationship between diffusion flux and concentration gradient. Topics include:

    • The mathematical formulation of Fick's Law.
    • Applications of Fick's Law in predicting mass transfer rates.
    • Case studies demonstrating Fick's Law in practical scenarios.

    Understanding Fick's Law is crucial for analyzing and designing processes involving mass transfer.

  • Mod-01 Lec-04 Steady state molecular diffusion in fluids Part I
    Mod-01 Lec-04 Steady state molecular diffusion in fluids Part I
    Dr. B. Mandal
    Play

    This module covers steady-state molecular diffusion in fluids, focusing on:

    • The concept of steady-state diffusion and its significance.
    • Mathematical models for predicting diffusion in various fluid systems.
    • Examples of steady-state diffusion in engineering applications.

    Students will gain insights into how steady-state conditions affect mass transfer processes.

  • Mod-01 Lec-05 Steady state molecular diffusion in fluids Part II
    Mod-01 Lec-05 Steady state molecular diffusion in fluids Part II
    Dr. B. Mandal
    Play

    Continuing from the previous module, this part further explores steady-state molecular diffusion in fluids with an emphasis on:

    • Advanced mathematical techniques for solving diffusion problems.
    • Practical examples that illustrate complex diffusion scenarios.
    • Application of numerical methods to analyze diffusion in diverse systems.

    This comprehensive understanding will prepare students for tackling real-world mass transfer challenges.

  • Mod-01 Lec-06 Diffusion coefficient: Measurement and Prediction Part I
    Mod-01 Lec-06 Diffusion coefficient: Measurement and Prediction Part I
    Dr. B. Mandal
    Play

    This module addresses the measurement and prediction of diffusion coefficients, discussing:

    • Methods for measuring diffusion coefficients in different media.
    • Theoretical approaches to predict diffusion coefficients.
    • Factors influencing diffusion coefficients and their implications.

    Students will learn how to employ these coefficients in practical applications and design processes.

  • Mod-01 Lec-07 Diffusion Coefficient: Measurement and Prediction Part II
    Mod-01 Lec-07 Diffusion Coefficient: Measurement and Prediction Part II
    Dr. B. Mandal
    Play

    This module continues the discussion on diffusion coefficients with a focus on:

    • Advanced measurement techniques for diverse materials.
    • Case studies illustrating the application of diffusion coefficients.
    • Discussions on the limitations and challenges in diffusion coefficient measurement.

    Through this module, students will gain practical skills in applying diffusion coefficients in engineering contexts.

  • Mod-01 Lec-08 Multicomponent Diffusion and Diffusivity in Solids
    Mod-01 Lec-08 Multicomponent Diffusion and Diffusivity in Solids
    Dr. B. Mandal
    Play

    This module introduces multicomponent diffusion, emphasizing:

    • The principles governing diffusion in multicomponent systems.
    • Methods for analyzing multicomponent diffusion processes.
    • Applications in chemical and biological engineering.

    Understanding multicomponent diffusion is essential for designing complex systems in various engineering fields.

  • Mod-02 Lec-01 Concept of Mass Transfer Coefficient
    Mod-02 Lec-01 Concept of Mass Transfer Coefficient
    Dr. B. Mandal
    Play

    This module introduces the concept of mass transfer coefficients, covering:

    • The definition and significance of mass transfer coefficients.
    • Factors affecting mass transfer coefficients in various systems.
    • Applications of mass transfer coefficients in engineering design.

    Students will learn how to utilize these coefficients for analyzing mass transfer operations effectively.

  • Mod-02 Lec-02 Dimensionless Groups and Co-relations for Convective
    Mod-02 Lec-02 Dimensionless Groups and Co-relations for Convective
    Dr. B. Mandal
    Play

    This module focuses on dimensionless groups and correlations for convective mass transfer, including:

    • Key dimensionless numbers relevant to mass transfer.
    • How these groups are used to correlate mass transfer coefficients.
    • Practical examples demonstrating their application in design.

    Understanding these concepts is crucial for analyzing convective mass transfer in various contexts.

  • Mod-02 Lec-03 Mass Transfer co-efficient in Laminar Flow Condition
    Mod-02 Lec-03 Mass Transfer co-efficient in Laminar Flow Condition
    Dr. B. Mandal
    Play

    This module discusses mass transfer coefficients in laminar flow conditions, covering:

    • Characteristics of laminar flow and its relevance to mass transfer.
    • Methods for calculating mass transfer coefficients in laminar flows.
    • Applications of laminar flow mass transfer in engineering processes.

    Students will understand how flow conditions influence mass transfer efficiency.

  • Mod-02 Lec-04 Boundary Layer Theory and Film Theory in Mass Transfer
    Mod-02 Lec-04 Boundary Layer Theory and Film Theory in Mass Transfer
    Dr. B. Mandal
    Play

    This module explores boundary layer theory and film theory in mass transfer, including:

    • Theoretical foundations of boundary layer formation in mass transfer.
    • Film theory as an approach to analyzing mass transfer.
    • Applications of these theories in real-world processes.

    Students will gain insights into how these theories help in understanding mass transfer phenomena.

  • Mod-02 Lec-05 Mass Transfer Coefficients in Terbulant Flow
    Mod-02 Lec-05 Mass Transfer Coefficients in Terbulant Flow
    Dr. B. Mandal
    Play

    This module focuses on mass transfer coefficients in turbulent flow, discussing:

    • Characteristics of turbulent flow and its impact on mass transfer.
    • Methods for calculating mass transfer coefficients in turbulent conditions.
    • Case studies that illustrate turbulent flow mass transfer.

    Students will learn how to analyze and optimize mass transfer in turbulent systems.

  • Mod-02 Lec-06 Interphase Mass Transfer and Mass Transfer Theories Part I
    Mod-02 Lec-06 Interphase Mass Transfer and Mass Transfer Theories Part I
    Dr. B. Mandal
    Play

    This module delves into interphase mass transfer and mass transfer theories, focusing on:

    • The mechanisms of mass transfer between phases.
    • Key theories that describe interphase mass transfer.
    • Applications of these theories in industrial processes.

    Understanding interphase mass transfer is critical for optimizing separation processes.

  • Mod-02 Lec-07 Interphase Mass Transfer and Mass Transfer Theories Part II
    Mod-02 Lec-07 Interphase Mass Transfer and Mass Transfer Theories Part II
    Dr. B. Mandal
    Play

    This module continues the exploration of interphase mass transfer and theories, discussing:

    • Advanced theories related to mass transfer between different phases.
    • Practical applications and case studies demonstrating these theories.
    • Challenges faced in analyzing interphase mass transfer.

    Students will develop skills to address real-world problems in mass transfer operations.

  • Mod-02 Lec-08 Interphase Mass Transfer and Mass Transfer Theories Part 3
    Mod-02 Lec-08 Interphase Mass Transfer and Mass Transfer Theories Part 3
    Dr. B. Mandal
    Play

    This module further investigates interphase mass transfer and theories, focusing on:

    • A comprehensive overview of different mass transfer models.
    • Comparisons between various interphase mass transfer theories.
    • Applications in process design and optimization strategies.

    Students will learn how to apply these theories to enhance the efficiency of mass transfer processes.

  • Mod-03 Lec-01 Agitated and Sparged Vassels
    Mod-03 Lec-01 Agitated and Sparged Vassels
    Dr. B. Mandal
    Play

    This module provides an overview of gas-liquid operations, focusing on:

    • The design and operation of agitated and sparged vessels.
    • Understanding the role of mass transfer coefficients in gas-liquid systems.
    • Applications of these operations in chemical processes.

    Students will develop a comprehensive understanding of the equipment used in gas-liquid mass transfer.

  • Mod-03 Lec-02 Tray Column Part I
    Mod-03 Lec-02 Tray Column Part I
    Dr. B. Mandal
    Play

    This module introduces tray columns, emphasizing:

    • The theory behind tray column operations in mass transfer.
    • Design considerations for effective tray column performance.
    • Case studies demonstrating the application of tray columns in industry.

    Students will learn how to design and optimize tray columns for various separation processes.

  • Mod-03 Lec-03 Tray Column Part II
    Mod-03 Lec-03 Tray Column Part II
    Dr. B. Mandal
    Play

    This module continues the exploration of tray columns, focusing on:

    • Advanced concepts in tray column design and operation.
    • Comparative analysis of different tray designs.
    • Practical applications and improvements in tray column efficiency.

    Students will gain insights into the latest innovations in tray column technology.

  • Mod-03 Lec-04 Packed Tower
    Mod-03 Lec-04 Packed Tower
    Dr. B. Mandal
    Play

    This module focuses on packed towers with an emphasis on:

    • The principles driving packed tower operations in mass transfer.
    • Design considerations for maximizing efficiency in packed towers.
    • Applications and case studies illustrating packed tower use in industry.

    Students will learn to evaluate and design packed towers for various applications.

  • Mod-04 Lec-01 Introduction to Absorption and Solvent selection
    Mod-04 Lec-01 Introduction to Absorption and Solvent selection
    Dr. B. Mandal
    Play

    This module introduces the theory of absorption, focusing on:

    • Fundamental principles that govern absorption processes.
    • Modeling approaches for plate columns and packed columns.
    • Applications in industrial absorption systems.

    Students will develop a solid grounding in absorption theory and its practical implications.

  • Mod-04 Lec-02 Packed Tower Design Part I
    Mod-04 Lec-02 Packed Tower Design Part I
    Dr. B. Mandal
    Play

    This module delves into the foundational aspects of designing packed towers which are used for various mass transfer operations. Students will explore the different types of packing materials, their characteristics, and how they influence the efficiency of mass transfer. Key considerations such as pressure drop, flooding, and loading points will be discussed. Practical examples will be provided to illustrate the design process and highlight common challenges encountered in industrial applications.

  • Mod-04 Lec-03 Packed Tower Design Part II
    Mod-04 Lec-03 Packed Tower Design Part II
    Dr. B. Mandal
    Play

    Building upon the foundational principles, this module covers advanced concepts in packed tower design. Topics include the selection and arrangement of packing materials for optimal performance, detailed analysis of flow dynamics, and mass transfer efficiency. Students will also learn about scaling up laboratory-scale designs to industrial applications, with a focus on maintaining efficiency and reducing operational costs. Case studies will be used to illustrate successful implementations.

  • Mod-04 Lec-04 Packed Tower Design Part III
    Mod-04 Lec-04 Packed Tower Design Part III
    Dr. B. Mandal
    Play

    This module completes the study of packed tower design by addressing complex design scenarios and troubleshooting. Students will learn how to handle unexpected operational issues such as fouling and maintenance challenges. Techniques for optimizing tower performance under varying operational conditions will be discussed, along with the integration of packed towers in larger processing systems. Emphasis will be placed on sustainability and environmental considerations in design.

  • Mod-04 Lec-05 Mass Transfer Coefficients Correlation and HETP Concept
    Mod-04 Lec-05 Mass Transfer Coefficients Correlation and HETP Concept
    Dr. B. Mandal
    Play

    This module focuses on the correlation of mass transfer coefficients and the Height Equivalent to a Theoretical Plate (HETP) concept. Students will learn how to derive and apply mass transfer coefficient correlations to real-world systems. Detailed analysis of the HETP concept will be provided, illustrating its importance in optimizing the design and operation of distillation and absorption towers. Practical examples and problem-solving sessions will solidify understanding.

  • Mod-04 Lec-06 Tray Tower Design and Introduction to Multicomponent System
    Mod-04 Lec-06 Tray Tower Design and Introduction to Multicomponent System
    Dr. B. Mandal
    Play

    This module introduces the design of tray towers and multicomponent systems. Students will explore the principles of tray tower design, focusing on tray selection, arrangement, and efficiency. The module will also cover the complexities of designing systems for multicomponent mixtures, emphasizing the importance of thermodynamic and kinetic considerations. Real-world examples will illustrate the challenges and solutions in designing effective and efficient tray towers.

  • Mod-05 Lec-01 Introduction to Distillation and Phase diagrams
    Mod-05 Lec-01 Introduction to Distillation and Phase diagrams
    Dr. B. Mandal
    Play

    This introductory module on distillation provides an overview of fundamental concepts and phase diagrams. Students will learn about the basic principles of distillation, the importance of phase diagrams in understanding separation processes, and how to interpret these diagrams to predict system behavior. Emphasis will be placed on the practical application of phase diagrams in designing distillation processes for various industrial applications.

  • Mod-05 Lec-02 Azeotropes and Enthalpy Concentration Diagrams
    Mod-05 Lec-02 Azeotropes and Enthalpy Concentration Diagrams
    Dr. B. Mandal
    Play

    This module explores azeotropes and enthalpy concentration diagrams, crucial concepts in distillation processes. Students will learn about the formation and characteristics of azeotropes, and how they affect separation efficiency. The module also covers the construction and interpretation of enthalpy concentration diagrams, which are essential for understanding energy changes in distillation. Practical examples will demonstrate the application of these concepts in solving complex distillation challenges.

  • Mod-05 Lec-04 Batch and Steam Distillation
    Mod-05 Lec-04 Batch and Steam Distillation
    Dr. B. Mandal
    Play

    This module covers batch and steam distillation techniques, essential for separating mixtures in various industries. Students will learn the operational principles, advantages, and limitations of batch and steam distillation. The module will also provide insights into designing and operating batch distillation units, highlighting key parameters affecting performance and efficiency. Real-world examples will illustrate the application of these techniques in different industrial scenarios.

  • Mod-05 Lec-05 Fractional Distillation
    Mod-05 Lec-05 Fractional Distillation
    Dr. B. Mandal
    Play

    This module introduces fractional distillation, a crucial separation technique for refining mixtures. Students will explore the principles of fractional distillation, focusing on the design and operation of distillation columns. The module will cover key concepts such as reflux ratio, column efficiency, and separation stages. Practical examples will demonstrate the application of fractional distillation in the petrochemical and pharmaceutical industries, highlighting its importance in achieving high-purity products.

  • Mod-05 Lec-06 Fractional Distillation: McCabe Thiele Method
    Mod-05 Lec-06 Fractional Distillation: McCabe Thiele Method
    Dr. B. Mandal
    Play

    This module focuses on the McCabe-Thiele method, a graphical design technique for fractional distillation. Students will learn how to construct and interpret McCabe-Thiele diagrams, and use them to determine the number of theoretical stages required for a given separation. The module will also cover concepts such as operating lines, feed conditions, and reflux ratio optimization. Practical exercises will reinforce the application of this method in industrial distillation design.

  • Mod-05 Lec-07 Fractional Distillation: Minimum Reflux and Pinch Point
    Mod-05 Lec-07 Fractional Distillation: Minimum Reflux and Pinch Point
    Dr. B. Mandal
    Play

    This module covers fractional distillation concepts such as minimum reflux and pinch points, which are critical for optimizing distillation processes. Students will learn how to determine the minimum reflux ratio and its impact on column design and operation. The module will also discuss the significance of pinch points in distillation, and how they influence separation efficiency. Real-world examples will illustrate the application of these concepts in optimizing industrial distillation systems.

  • Mod-05 Lec-08 Fractional Distillation: Subcooled Reflux ,Tray Efficiency and Use of Open Steam
    Mod-05 Lec-08 Fractional Distillation: Subcooled Reflux ,Tray Efficiency and Use of Open Steam
    Dr. B. Mandal
    Play

    This module explores the concepts of subcooled reflux, tray efficiency, and the use of open steam in fractional distillation. Students will learn about the impact of subcooled reflux on column performance and separation efficiency. The module will also cover tray efficiency calculations, essential for designing effective distillation columns. Additionally, the use of open steam as a separation aid will be discussed, with examples illustrating its application in industrial distillation processes.

  • Mod-05 Lec-09 Fractional Distillation: Multiple Feeds and Side Stream
    Mod-05 Lec-09 Fractional Distillation: Multiple Feeds and Side Stream
    Dr. B. Mandal
    Play

    This module covers the advanced topics of fractional distillation involving multiple feeds and side streams. Students will learn how to design and optimize distillation columns with multiple feed points, focusing on the impact on separation efficiency and column operation. The module will also discuss the integration of side streams and their role in improving product purity and yield. Real-world examples will illustrate the application of these concepts in complex industrial distillation systems.

  • Mod-05 Lec-10 Multistage Batch Distillation with Reflux
    Mod-05 Lec-10 Multistage Batch Distillation with Reflux
    Dr. B. Mandal
    Play

    This module introduces multistage batch distillation with reflux, a technique used to enhance separation efficiency in batch processes. Students will learn about the design and operation of multistage batch distillation units, focusing on the role of reflux in improving product purity. The module will cover key parameters affecting performance, such as reflux ratio, stage number, and column configuration. Practical examples will illustrate the application of this technique in various industries.

  • Mod-05 Lec-11 Fractional Distillation: Ponchan and Savarit Method
    Mod-05 Lec-11 Fractional Distillation: Ponchan and Savarit Method
    Dr. B. Mandal
    Play

    This module explores the Ponchan and Savarit method, an alternative design approach for fractional distillation. Students will learn how to apply this method to determine the number of theoretical stages required for a given separation. The module will cover key concepts such as energy balances, enthalpy-concentration diagrams, and operational lines. Practical exercises will reinforce the understanding and application of the Ponchan and Savarit method in industrial distillation design.

  • Mod-05 Lec-12 Ponchan and Savarit Method and Packed Tower Distillation
    Mod-05 Lec-12 Ponchan and Savarit Method and Packed Tower Distillation
    Dr. B. Mandal
    Play

    This module continues the exploration of the Ponchan and Savarit method and introduces packed tower distillation. Students will learn how to apply the Ponchan and Savarit method to packed tower systems, focusing on the unique challenges and advantages of using packed towers for distillation. The module will cover design considerations, such as packing selection and column configuration, and provide practical examples of packed tower distillation in various industries.

  • Mod-05 Lec-13 Multicomponent Distillation
    Mod-05 Lec-13 Multicomponent Distillation
    Dr. B. Mandal
    Play

    This module introduces multicomponent distillation, a complex separation process involving mixtures with more than two components. Students will learn about the principles of multicomponent distillation, focusing on the design and operation of distillation columns for such systems. The module will cover key concepts such as relative volatility, component interactions, and separation efficiency. Real-world examples will illustrate the application of multicomponent distillation in industries such as petrochemicals and pharmaceuticals.

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