What are the differences between the absorption stabilization system of catalytic units and the light hydrocarbon recovery system in newly built units?
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What are the differences between the absorption stabilization system of catalytic units and the light hydrocarbon recovery system of newly built units? I hope the experts can give me some advice!
In light hydrocarbon recovery, naphtha is used as a reabsorbent, and some residual heat source in the plant is utilized to heat the reboiler; the C3 and C4 compounds produced in this process are mostly saturated hydrocarbons. Catalytic units generally use light cycle oil as an absorbent; this unit is equipped with a heat source, and the products produced are mostly unsaturated.
The catalytic absorption stabilization system is similar to the light hydrocarbon recovery system; the difference lies in whether the medium coming from the former system is under pressure, which means that one compressor uses a centrifugal design, while the other can only use a reciprocating or screw-type design.