When gas is to be transported for long distances in pipelines, consideration must be given to the control of the formation of hydrocarbon liquids in the transmission system. To prevent formation of said hydrocarbon liquids, it is necessary to control the Hydrocarbon Dewpoint at a temperature below all conceivable operating temperatures.
Hydrocarbon dewpoint is the temperature, at a given pressure, at which the hydrocarbon components will start to condense out of the gaseous phase of the natural gas stream. The maximum temperature, and the pressure at which such condensation takes place, is the cricondentherm.
Several methods can be used to reduce the hydrocarbon dewpoint. KOCKEN Energy Systems Inc. applies the most common methods of Hydrocarbon Dewpoint Control including:
- JT Expansion
- Mechanical Refrigeration
- Refrigerated JT
- Cascade Refrigeration
- Turbo Expansion