Abstract

Most natural gas sources contain hydrocarbon liquids that must be removed to meet the hydrocarbon dew point and heating value specifications for safe transmission by pipelines supplying consumers. The hydrocarbon liquids can be grouped into the natural gas liquids (NGLs) (C2 to C4) and natural gas condensate (C5+). Usually there is a commercial benefit to recovering these hydrocarbon liquids in greater amounts than required for pipeline specifications due to a premium price over natural gas for the equivalent heating value. This chapter covers the production of NGL from the conventional dew point controlling unit to technologies that can achieve higher recovery of propane and ethane, NGL fractionation, and liquid products treating.

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