Debutanizer Column
LPG LNG CNG
| LPG | LNG | CNG | |
|---|---|---|---|
Propane and Butane | Methane | Methane cryogenically liquefied | |
C3H8 and C4H10 | CH4 | ||
93.2 MJ/m3 | 38.7 MJ/m3 | ||
Derived form NG processing and crude oil refining | Natural Gas | ||
Propane is heavier than air | Methane is lighter than air | ||
Pronounciation
Propane (/หproสpeษชn/)
Butane (/หbjuหteษชn/)
Isopenten /i.zษ.pษฬ.tan/
Natural Gas Processing
Raw natural gas typically consists primarily of methane (CH4) and ethane (C2H6) and also contains
Heavier gaseous hydrocarbons: propane (C3H8), normal butane (n-C4H10), isobutane (i-C4H10) and pentanes.
CO2, H2S, N2, He
NGL Fractionation
The recovered NGL stream is processed through a fractionation train consisting of up to five distillation towers in series: a demethanizer, a deethanizer, a depropanizer, a debutanizer and a butane splitter.
In the debutanizer column C3 (propane) and C4 (butane) are removed as overheads from the naphtha stream.
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