NGL Fractionation & Cryogenic NGL Recovery for Operations & Maintenance - OT-42

Discipline: Operations & Maintenance
Level: Foundation
Instructors who teach this course:


  • About the course
  • Designed For
  • You will learn
  • Course Content
About the course
This course will provide the basic knowledge required for understanding operating issues in cryogenic NGL (Natural Gas Liquids) extraction and stabilization/fractionation. Course content is non-mathematical and customizable to client needs.
Designed For
Plant and facility operations and maintenance technicians, supervisors, and managers.
You will learn
  • To use hydrocarbon system language
  • Basic principles of gas processing
  • The physical properties of natural gas and NGL components
  • Practical application of the principles of hydrocarbon phase behavior
  • Principles, operation, and troubleshooting of mechanical refrigeration systems
  • Operating principles and issues in gas expansion NGL recovery (turboexpander and J-T valve) processes
  • Operating principles and techniques for NGL stabilization and fractionation
Course Content
  • Hydrocarbon systems: reservoir fluids
  • Hydrocarbon series: paraffins
  • Physical properties of hydrocarbons
  • Fluid properties: VLE, vapor pressure, boiling point, etc.
  • Pressure-temperature phase diagrams (phase envelopes)
  • Application of phase envelopes: hydrocarbon dew point control, equilibrium stage concepts, flash separators, and fractionators
  • Mechanical refrigeration: principles and equipment
  • Tray-type towers; packed towers
  • Components of turboexpander
  • NGL recovery plants
  • Turboexpander-compressor and utilities
  • Principles of gas expansion
  • NGL recovery and process variations
  • Stabilizers, fractionators, and fractionation trains
  • The basic fractionator and operator control techniques
  • Troubleshooting