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liquefied petroleum gas.  LPG

A mixture of propane and butane with traces of some other gases, which is kept in a liquid state at high pressure in metal bottles, and used as a source of gas for cooking, heating and as a fuel in internal combustion engines in vehicles.

Liquefied natural gas (LNG)

is natural gas (predominantly methane, CH4, with some mixture of ethane C2H6) that has been converted to liquid form for ease and safety of non-pressurized storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state (at standard conditions for temperature and pressure). It is odorless, colorless, non-toxic and non-corrosive. Hazards include flammability after vaporization into a gaseous state, freezing and asphyxia. The liquefaction process involves removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately −162 °C (−260 °F); maximum transport pressure is set at around 25 kPa (4 psi).

Category: Tag:



1Density @ 20 oCgr/ml0.75 – 0.82
2Total Sulfurwt%Max.  2.5
3Viscosity @ 20 oCcst0.7 – 1
4IBPc60 – 70
5FBPc200 – 250
6Pour Pointc<-30
7Flash Pointc-2.7 – -0.7
8Aromatics ContentVol%28-35
9Olefins ContentVol%Neg.
10Paraffins ContentVol%55-70
11Naphthenes ContentVol%Max.  13



ASTM  D21630.2max٪volC2  Hydrocarbon
ASTM  D2163*٪volC3  Hydrocarbon
ASTM  D2163*٪volC4  Hydrocarbon
ASTM  D21632max٪volC5  Hydrocarbon
ASTMNegativeHydrogen sulphide
IP.104(A)0.23maxg/m3Mercaptan sulphur
12g/m3Odorizing agent


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