Liquefied Natural Gas (LNG) | GAS SOUTH - SOUTHERN GAS TRADING JOINT STOCK COMPANY

 LNG (Liquefied Natural Gas) is the colorless and odorless liquefied natural gas with the main composition of CH4 - methane (accounting for about 95%). LNG is natural gas that is thoroughly cooled down at -162°C turned into liquid form and stored in specialized tanks to be transported to point-of-consumption.

LNG COMPOSITION

95 %

5 %

Methane

Others

THE TABLE OF TECHNICAL CHARACTERISTICS OF BURNING FUEL (*)

Characteristic	LNG	CNG	LPG	Diesel	FO 3.5S
Color, Odor	No	No	No	Yes	Yes
Density	0,41 - 0,5 Kg/lit	0,75 - 0,83 Kg/Sm3	0,51 - 0,56 Kg/lit	0,82 - 0,87 Kg/lit	0,991 (Max) Kg/lit
Calorific Power (MJ/kg)	55	50-56	49,5	45,36	41,03
Flame Temperature (oC)	1.880	1.954	1.950	1.780	N/A
Auto-ignition temperature (oC)	482 - 632	540	374	260	407

THE TABLE OF BURNING FUEL SAFETY COMPARISON (*)

	LNG	CNG	LPG	PETROLEUM
Combustibility	Lighter than air, easily soluble in air		Heavier than air, accumulate on the ground, Combustible easily
Storage tank	Special materials, design pressure 12kg/cm 2	Special materials, under pressure over 250 bar	Stainless Steel, design pressure 18kg/cm 2	Stainless Steel
Accessory	Emergency Shut Off Valve will automatically Shut off the line to avoid any gas leakage in the event of a fault			None

Noted:
・BTU (British Thermal Unit): Calorific Power Unit of British.
・Sm3 (Standard cubic meter): 1 m3 CNG in standard condition ( 15oC temperature, 1 at pressure )
・mmBTU: One million BTU.
・1Kcal = 3,968321 BTU.

THE TABLE OF CALORIFIC VALUE (*)

FUEL	UNIT	KCal	BTU	mmBTU
LNG	Kg	13.114	52.042	0,052042
CNG	Sm3	10.080	40.001	0,040001
LPG	Kg	11.823	46.917	0,046917
DO	Kg	10.835	42.997	0,042997
FO	Kg	9.800	38.890	40,038890

CALCULATION OF ENERGY CONVERSION OF FUELS (*)

FUEL	UNIT	FUEL CONVERSION
		LNG(kg)	CNG(Sm3)	LPG(Kg)	DO(Kg)	FO(Kg)
LNG	1Kg	1	1,30099	1,10919	1,21034	1,33816
CNG	1 Sm3	0,768802	1	0,85258	0,93032	1,02857
LPG	1Kg	0,901522	1,17292	1	1,09119	1,20643
DO	1Kg	0,826198	1,07490	0,91643	1	1,10561
FO	1Kg	0,747281	0,97222	0,82889	0,90448	1

(*) The data given for reference only