BTUs determine energy efficiency—the higher the number of BTUs, the more energy-efficient. One cubic foot of natural gas uses about 1,030 BTUs to heat 1 pound of water, while 1 cubic foot of propane uses around 2,490 BTUs. This means propane gas is more than twice as energy-efficient as natural gas. Winner: Propane. Liquefied natural gas (LNG) is a liquid form of natural gas. It takes up about 1/600th the volume of methane in the gaseous state at standard temperature and pressure, allowing for much easier transport via tankers, ships, trucks, and pipelines. Even more, liquefied natural gas is odourless when handled as an inert substance. Cheniere Energy, Inc. (LNG 0.23%) is a leading player in the U.S. liquefied natural gas (LNG) market, there are two big differences between the parent and its child. The first is income However, natural gas suppliers require a daily supply charge for being connected to the mains gas network that can exceed $400 per year, before any gas is used. LPG compared to natural gas has more than double the energy content at 93.2MJ/m³ vs natural gas at 38.7MJ/m³, so LPG is much more efficient than natural gas and is now cheaper in many Natural gas engines have very similar engine oil requirements as diesel, but with a few important differences. NG engines have higher combustion and operating temperatures. Fuel combustion is more complete and natural gas engines do not generate soot. The need for detergent and dispersant additives is significantly lower than with diesel Natural gas is typically acquired by drilling, the same process as is done for oil. Natural gas in liquid form is taken to various holding facilities where it is converted into its gas state. Then, is made available through pipelines and it can also be purchased in cylinders. A natural gas generator works pretty much the same as other generators. A natural-gas processing plant in Aderklaa, Austria. Natural-gas processing is a range of industrial processes designed to purify raw natural gas by removing contaminants such as solids, water, carbon dioxide (CO 2), hydrogen sulfide (H 2 S), mercury and higher molecular mass hydrocarbons to produce pipeline quality dry natural gas for pipeline distribution and final use. CNG: Compressed Natural Gas is primarily composed of methane (CH4) and is stored under high pressure in gaseous form. It is typically stored in cylinders or tanks at pressures of around 200-250 bar. CNG is lighter than air, non-toxic, and disperses quickly if released into the atmosphere. LNG: Liquefied Natural Gas is natural gas that has been Wzgin.