NGL Recovery and Fractionation Explained: Lean Oil, Refrigeration, J-T Valve and Turbo-Expander

After conditioning, natural gas still carries ethane, propane, butane and heavier hydrocarbons. This animated lecture shows how these natural gas liquids (NGLs) are extracted from the gas, and how they are split into ethane, LPG and stabilised condensate. Lecture by Foster Nunyati Helegah, Teaching and Research Assistant, Department of Chemistry, Industrial Chemistry Unit, University of Cape Coast, Ghana. Chapters 0:00 What are NGLs and why remove them? 1:15 Extraction 1: Lean-oil absorption 2:48 Extraction 2: Refrigeration (gas chilling) 3:46 Extraction 3: Joule-Thomson expansion 4:39 Extraction 4: Turbo-expander 5:45 NGL fractionation basics 6:53 De-ethanizer 8:00 Debutanizer (LPG production) 8:52 Condensate stripper 9:45 Summary Topics covered: hydrocarbon dew point, absorber and still, propane refrigeration, J-T effect, expansion turbine and recompressor, distillation columns, reflux, reboiler, LPG specifications, Reid vapour pressure (RVP), the J-T process used at the Ghana Gas plant. Watch next: Pipeline Pigging. #NGL #GasProcessing #ChemicalEngineering #Industrial Chemistry Unit #Process Engineering #LPG #ChemistryAndEngineeringWithFoster