Unit 1 Gas separation and gas purification system

8 lecture hours

• Thermodynamically Ideal separation system
• general characteristics of mixtures
• temperature composition diagram for cryogenic gas mixtures
• enthalpy composition diagrams
• Simple condensation and evaporation
• principles of rectification
• theoretical plate calculations for columns
• Mecabe – Thiele method for theoretical plate calculation
• types of rectification columns

Unit 2 Air separation and purification systems

8 lecture hours

• Linde single column
• double column
• Linde-Frank1 and Heylandt systems
• xenon and krypton. ‘L’ Air liquede systems for hydrogen
• hydrogen – deuterium in separation systems
• helium separation system
• separation of helium isotopes
• purification of helium

Unit 4 Dewars, classification of Dewars, static and chassis mounted cryogenic liquid storage and

4 lecture hours

• transport tanks LNG storage tanks
• construction Liquid and vapour shielded vessels
• cryogenic liquid transfer pumps
• liquid transfer lines their design
• vacuum insulated line joints, and cryogenic valves liquid transfer systems

Unit 5 Fabrications and jointing techniques, flanged and bolted joints, joining of dissimilar metals ,

• welding of stainless steel and alloy steels 4 Subject Code: 3721002 w.e.f