Simplified View of the Thermodynamics of NGLs Ty Leisure Paul - PowerPoint PPT Presentation

Sep 23, 2023 •115 likes •327 views

Simplified View of the Thermodynamics of NGLs Ty Leisure Paul Daniell (Associate Professor at Marietta College) Basics What is it? Condensation- Is a change of form from a gaseous state to a liquid state First Method Raise the

Simplified View of the Thermodynamics of NGLs Ty Leisure Paul Daniell (Associate Professor at Marietta College)
Basics
What is it?  Condensation-  Is a change of form from a gaseous state to a liquid state
First Method  Raise the pressure and keep temperature constant
VLE Diagram
Compressors
There is a problem  TOO MUCH HEAT!!!
Heat Exchangers
Compressors + Heat Exchangers  Compressors raises pressure and temperature  Heat Exchangers remove heat  Readily available  Takes up a large portion of space
The Second Method  Lowering the temperature and keep pressure constant
VLE Diagram
Refrigeration
Refrigeration  Similar to domestic refrigerators  Hot air  Compressor  Refrigerant  Gas  Repeat  Relatively expensive
Turbine Expanders
Turbine Expanders  Mechanical Energy  Kinetic Energy  Potential Energy  Kinetic Energy  Mechanical Energy  Wow!  Work can be 100% recoverable  Less cost
Turbine Expanders  Temperature drop function of pressure drop  Ethane!
Economics
Summary  ↑ Pressure, Temperature constant  Compressors + Heat Exchangers  ↓ Temperature, Pressure constant  Refrigeration and Turbine Expanders
Final Thoughts  Turbine Expanders  Ethane  Refrigeration  Cost down, efficient liquid recovery  Compressors + Heat Exchangers  In every chemical plant. Bulky
Questions?

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