# GITAM University Chemical Process Calculation Syllabus

B.Tech. (BT) III Semester

CHEMICAL PROCESS CALCULATIONS

Course Code : EURBT306 Category : CE

Credits: 3 Hours : 3 per week

UNIT-I

Stoichiometric and composition relationships. Limiting reactant. Excess reactant.

Degree of completion. Basis of calculation. Weight percent, volume percent and

mole percent. Density and specific gravity.

Behaviour of ideal gases, application of the ideal-gas law. Dalton and Amagat laws to

gaseous mixtures. Composition of gases on dry basis and on wet basis.

UNIT-II

Vapor pressures. Effect of temperature on vapor pressure. Antoine equation.

Reference substance vapor pressure plots. Vapor pressure of immiscible liquids. Ideal

solutions and Raoult’s law. Non-volatile solutes.

Humidity. Percentage saturation. Relative saturation or relative humidity. Dew point.

Vaporization. Condensation. Wet and dry bulb temperatures. Adiabatic vaporization

and adiabatic saturation temperature.

UNIT-III

Material balances. Tie substance. Yield. Conversion. Processes involving chemical

reactions. Material balance calculations involving drying, dissolution and

crystallization, Processes involving recycle, bypass and purge.

UNIT-IV

Heat capacities of gases and gaseous mixtures. Effect of temperature on heat capacity

of gas. Mean heat capacity of gas. Kopp’s rule. Latent heats. Heat of fusion. Heat

of vaporization. Trouton’s rule. Kistyakowsky equation for nonpolar liquids.

Estimation of latent heat of vaporization using Clausius – Clapeyron equation.

Enthalpy of humid air, and humid heat capacity.

UNIT-V

Standard heat of reaction. Standard heat of formation. Laws of thermochemistry. Standard heat of combustion. Calculation of heat of formation from heats of combustion. Calculation standard heat of reaction from heats of formation, and from heats of combustion. Standard integral heat of solution. Effect of temperature on heat of reaction. Kirchoff’s equation. Adiabatic and non-adiabatic reactions. Theoretical and actual flame temperatures.

Text Book:

1. Chemical Process Principles Part-I Material and Energy balances, by Olaf A

Hougen, Kwenneth M.Watson, and Roland A. Ragatz, CBS Publishers and Distributors (1995)

2. Chemical Process Principles (Stoichiometry), by K.A. Gavhane.

Reference Books:

1. Stiochiometry by B.I. Bhatt, and S.M. Vora (Third Ed.,), Tata McGraw Hill

Publishing Company Limited, New Delhi (1996)

2. Stiochiometry for chemical engineers, by Williams and Johnson, McGraw Hill.