Multiple Reactions
It is often the case that additional (unwanted) reactions may occur in our reactor that either divert reactants to something else or use our product after it is made. A…
Reactive Systems Review
Stoichiometric relations become important, for one! A->B(1 mole of B made from 1 mole of A)2B->C(it takes 2 moles of B to make one mole of C)How many moles of…
Limiting Reagents
When there is not enough of one reactant in a chemical reaction, the reaction stops abruptly. To figure out the amount of product produced, it must be determined reactant will…
BATCH DRYERS
The following are descriptions of various types of batch dryers. Tray dryers. This dryer type operates by passing hot air over the surface of a wet solid that is spread…
SOLIDS DRYING
Adjustment and control of moisture levels in solid materials through drying is a critical process in the manufacture of many types of chemical products. As a unit operation, drying solid…
Methods of crystallization
Crystallization is the oldest “unit operation” in a chemical engineering sense. For example, Sodium Chloride has been manufactured this way since the dawn of civilization. Various traditional methods for crystallization…
What is crystallization?
Crystallization is defined as a process by which a chemical is converted from a liquid solution into a solid crystalline state. The widespread use of crystallization within industry is in…
Evaporation and Types of Evaporation Equipments
Objective: “To concentrate a dilute solution consisting of non volatile solute and volatile solvent” Properties of evaporating liquids that influence the process of evaporation: 1. Concentration: As the concentration increases, the viscosity and…
