Subject Code & Name: CH25C04 – Chemical Reaction Engineering I
Regulation: R-2025
Semester: IV (Fourth Semester)
Branch: B.Tech. Chemical Engineering (Chem) / B.Tech. Petrochemical Technology (Petrochem)
Credits / L-T-P: 4 Credits | L-T-P: 3-0-2
Course Objectives
- To provide knowledge on reaction kinetics, design and analysis of homogeneous reactors, multiple reactions, non-isothermal reactor operation and residence time distribution in ideal and non-ideal reactors.
Full Unit-wise Syllabus
Unit I – Kinetics of Homogenous Reaction
Rate equation; elementary; non-elementary reactions; theories of reaction rate and Prediction. Design equation for constant and variable volume batch reactors, Concentration dependency of rate constant; Temperature dependency of rate constant. Analysis of batch experimental data using integral and differential analysis. Half-life calculation
Practical: 1.Kinetic studies in a Batch reactor, semi batch reactor 2. Determination of Activation Energy
Activities: Analyze homogeneous reaction kinetics using experimental data, evaluate rate constants and activation energy.
Unit II – Ideal Reactors
Ideal reactor classification. Design of continuous reactors under steady state operation -stirred tank and tubular reactor; recycle reactors; combination of reactors and size comparison of reactors.
Practical: 1. Kinetic studies and conversion calculation in a Plug flow reactor 2. Kinetic studies and conversion calculation in a CSTR 3. Conversion calculation PFR followed by a CSTR
Activities: Evaluate conversion and performance of ideal reactors, compare reactor configurations and sizing.
Unit III – Multiple Reactions
Design of reactors for multiple reactions - consecutive, parallel and mixed reactions. Factors affecting choice, optimum yield and conversion in CSTR, PFR; selectivity and yield.
Activities: Analyze reactor performance for multiple reactions, evaluate selectivity and yield for parallel and consecutive reactions, determine optimum reactor conditions for maximum conversion.
Unit IV – Non-Isothermal Reactors
Non-isothermal homogeneous reactor systems, adiabatic reactors, rates of heat exchanges for different reactors, design for constant rate input and constant heat transfer coefficient, operation of batch and continuous reactors, optimum temperature progression.
Practical: 1. Kinetic studies of Adiabatic Reactor
Activities: Analyze heat effects in chemical reactors, evaluate reactor performance under non-isothermal conditions, determine optimum temperature progression in reactor operation.
Unit V – Non-Ideal Reactors
The residence time distribution for chemical reactors, residence time functions and relationship between them in reactor; Different models used in non-ideal reactors, conversion calculation using different models in non-ideal reactors.
Practical: 1. RTD studies in PFR 2. RTD studies in CSTR
Activities: Evaluate residence time distribution functions, analyze reactor non-idealities using RTD models, compare conversion behavior in ideal and non-ideal reactor systems.
Course Outcomes (COs)
- CO1: Understand the principles of homogeneous reaction kinetics and factors influencing reaction rates.
- CO2: Apply reactor performance equations to determine conversion and design parameters for ideal reactor systems.
- CO3: Analyze multiple reaction systems to determine selectivity, yield, and conversion behavior in chemical reactors.
- CO4: Evaluate the operation and thermal performance of non-isothermal reactors under varying operating conditions.
- CO5: Design and assess reactor systems by incorporating residence time distribution models and non-ideal flow behavior.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Assignments (20%), Experimental data analysis and reactor simulations (20%), Solving Quiz/MCQs (20%), Internal Examinations (40%)
Source: Official Anna University – B.Tech. Chemical Engineering R-2025 Syllabus
Last Updated: October 2026
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