Energy-saving APG stripping technology before compression
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Process Description Feedstock – hot stripping gas enters the recuperative heat exchanger 1. The cooled hot stripping gas is further cooled in a water heat exchanger 2, in a refrigerating machine 3 and separated in a three-phase separator 4 into separation gas, water condensate, which is discharged from the unit, and hydrocarbon condensate. The latter is fed by pump 5 to stabilization column 6. From the bottom of column 6, the stabilized GC is discharged from the unit by pump 7. The stabilization gas is removed from the top of column 6 and, together with the separated gas from separator 4, is heated in a recuperative heat exchanger 1 and removed from the unit.
Process features
Reducing the dew point temperature for hydrocarbons to a temperature close to the beginning of hydrate formation
Minimization of losses of light fractions of oil with APG
Block-modular design of equipment
Low capital investment and operating costs
Technical Specification
APG temperature: 35–60 °С.
APG pressure: 0,05–0,15 MPa
APG capacity - up to 15 000 nm³/hour
Products: APG with a reduced dew point for hydrocarbons, NGL or stabilized NGL returned to the oil treatment unit