Q1/ A distillation tower produce erucamide ( C22H43NO ) in the liquid phase with a temperature of 200 °C and purity of 96.7 % needs to be purified and crystallize to produce fine powder erucamide
• Briefly introduce the crystallization process and how it works
• Design cooling crystallization unit to produce 2500 kg\h of erucamide with the following specification
Product Specification
Component Result Unit
Amide Purity > 98 %
Moisture < 1 %
Nitrile < 1 %
Colour < 500 Hazen
• include the required calculation of designing a cooling crystallization unit (volume, width, thickness and height) and any additional calculations .
• determine the ratio of erucamide and the ideal solvent, such as hexane and do the material balances required.
• design a P&ID for the entire crystallization unit and discuss HAZOP (Hazard Operability Analysis) for most common hazards that are associated with this process.
• Does the unit process requires an Anti-corrosion coating and if it does how regular this should be maintained.
• How often does the unit requires maintenance.
• Discuss why cooling crystallization unit it is better than other types.
• In determining the volume of the major equipment which would be difficult or expensive to replace we should have a 20% overdesign capacity to allow for future debottlenecking.
Q2/ (APR) Environmental protection must be carefully prepared when dealing with the following equipment and materials:
equipment materials
Splitting unit rapseed oil
Fractionatiion unit mix of fatty acids
reactor ammonia and erucic acid
film evaporator unit erucic acid and erucamide
crystallization unit erucamide and hexane
In 1000 word write what are the Environmental protection which should be taken in each equipment and materials associated with it.
Sample Solution