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Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH 4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure.It is stored and distributed in hard containers at a pressure of 20–25 megapascals (2,900–3,600 psi; 200–250 bar), usually in cylindrical or spherical shapes.
Natural gas prices 2000 - May 23, 2022 Comparison of natural gas prices in Japan, United Kingdom, and United States, 2007-2011 Natural gas prices at the Henry Hub in US Dollars per million Btu for the 2000-2010 decade. Price per million BTU of oil and natural gas in the US, 1998-2015
The gas price prior to reform was $0.10 US per liter with the quota of 100 liters per month per passenger car. The reform raised the price to $0.40 US per liter and later reduced the ration to 60 liters per month. The price for over-quota consumption and the imported cars were $0.70 US per liter.
Malaysia LNG Sdn. Bhd. (MLNG Satu) was incorporated on 14 June 1978 in order to build first Malaysian LNG Plant of three trains with a capacity of 2.7 million ton per annum (Mtpa) each. [1] Its first liquefied natural gas (LNG) was delivered in January 1983 (the first cargo dispatched on 29 January 1983).
One GGE of CNG pressurized at 2,400 psi (17 MPa) is 0.77 cubic feet (22 litres; 5.8 US gallons). This volume of CNG at 2,400 psi has the same energy content as one US gallon of gasoline (based on lower heating values: 148,144 BTU/cu ft (1,533.25 kWh/m 3) of CNG and 114,000 BTU/US gal (8.8 kWh/L) of gasoline. [22]
By the end of 2015, Iran had the world's largest fleet of NGV at 3.5 million vehicles. The share of compressed natural gas in the national fuel basket is more than 23%. CNG consumption by Iran's transportation sector is around 20 million cubic meters per day. [79] There are 2,335 CNG stations. [80]
Compressed natural gas (CNG) carrier ships are those designed for transportation of natural gas under high pressure. [1] CNG carrier technology relies on high pressure, typically over 250 bar (2900 psi ), to increase the density of the gas, but it is still 2.4 times less than that of LNG (426 kg/m 3 ). [ 2 ]
However, it was not economically viable, given the prices of natural gas at the time. It is expected the plant is to re-emerge around 2030 when economic conditions may be more favorable, with the possibility of a higher carbon price. [19] SNG is of particular interest in countries with extensive natural gas distribution networks.