Note: This syllabus is same for Chem Eng., PE.

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
II Year B.Tech. Chem Engg - I Sem L T/P/D C
4 -/-/- 4
CHEMICAL PROCESS CALCULATIONS

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Objective: To develop the basic knowledge in material and energy balance industry recycle streams.

UNIT - I

Stoichiometric & Composition relations: Stoichiometric relation, basis of calculations, methods of expressing compositions of mixtures and solutions, density and specific gravity, Baume and API gravity scales.
Behavior of Ideal gases: Kinetic theory of gases, application of ideal gas law, gaseous mixtures, gases in chemical reactions.

UNIT - II

Vapor pressure: Liquefaction and liquid state, vaporization, boiling point, effect of temperature on vapor pressure, Antoine equation, vapor pressure plots, estimation of critical properties, vapor pressure of immiscible liquids and ideal solutions, Raoult’s law, Non volatile solutes.
Humidity and Saturation: Partial saturation, Humidity- Absolute Humidity, Vaporization process, Molal humidity, Relative and percentage saturation, dew point, humid heat, wet bulb and dry bulb temperatures, use of humidity charts, adiabatic vaporization.

UNIT - III

Material balances: Tie substance, Yield, conversion, limiting reactant, excess reactant, processes involving reactions, Material balances with the help of Stoichiometric equations, Material balances involving drying, dissolution, & crystallization. Material balance calculations for processes involving recycle, bypass and purge.

UNIT - IV

Thermo physics: Energy, energy balances, heat capacity of gases, liquid and mixture solutions. Kopp’s rule, latent heats, heat of fusion and heat of vaporization, Trouton’s rule, Kistyakowsky equation for non polar liquids enthalpy and its evaluation.
Thermo chemistry: Calculation and applications of heat of reaction, combustion, formation and neutralization, Kirchoff’s equation, enthalpy concentration change, calculation of theoretical and actual flame temperatures.

UNIT - V

Combustion Calculations: Introduction, fuels, calorific value of fuels, coal, liquid fuels, gaseous fuels, air requirement and flue gases, combustion calculations, incomplete combustion, material and energy balances, thermal efficiency calculations.

TEXTBOOKS:

1. Chemical process principles, Part -I, Material and Energy Balance, Hougen O A, Watson K.M. and Ragatz R.A. 2nd Edition, John Wiley and Sons, New York, 1963.

REFERENCES:

1. Basic principles and calculations in chemical engineering by D.H. Himmelblau, 7th Ed. PHI, 2013
2. Stoichiometry by B.I. Bhatt and S.M. Vora (3rd Ed.) Tata McGraw Hill publishing company, Ltd. New Delhi (1996)

Outcome: This course will enable students to evaluate the effeciency of a process in terms of yield, energy and provide guidance to improve upon them.