Abstract: loule-Thomson (J-T) thermal insulation/throttle expanding device and turboexpander are main equipments for gas condensate recovery and LPG production. This paper presents a new model for this light hydrocarbon recovery and gas liquefied performance simulation with thermal insulation efficiency. By applying PR equation-of-state, the procedures of thermal insulation expansion, turbine expansion and separation by deep refrigeration are simulated for surface engineering of gas condensate reservoir. Results show that this method can be well used for description of procedures of J-T thermal insulation/throttle expansion and turbo-expansion.

Key words: simulation, turboexpander, phase behavior, LPG, performance, prediction