.2 The Distinctive Attributes of CNG
CNG mostly comprises 87% methane, 10% ethane, 2% propane, and 1% other gasses. As a result, natural compressed air CNG is colorless, odorless, and non-toxic, and it is light and easily soluble in air. Sulfur is frequently added to CNG during storage and transit to aid in the detection of leaks. CNG can achieve temperatures of around 1949 degrees Celsius when burnt at high temperatures and emits far fewer pollutants than gasoline and diesel.
In addition to the basic qualities listed above, CNG acquires the following prominent characteristics:
Reducing greenhouse gas emissions: studies conducted across the world indicate that the CNG combustion process emits far fewer pollutants than diesel and petroleum-based engines and practically never produces fine dust.
Superior efficiency: CNG undergoes compression at 200-250 bar pressure, saving considerable transportation and storage expenses.
Economical: Using CNG saves 10% to 30% of the cost of other petroleum-based fuels. CNG prices are also more steady and less volatile in the long run.
Safety: Compared to gasoline, CNG will be safer in an accident since it has the property of being lighter than air.
Extending machine lifespan: CNG burns entirely and does not build deposits, which allows the combustion chamber and carburetor of the devices to last longer.
Potential clean fuel: Compressed natural gas is becoming increasingly popular as a clean fuel. On a worldwide scale, CNG is becoming more and more well-liked. CNG has a lot of reserves because it was developed later than petroleum and will last the human race for roughly 1000 years. In the upcoming years, CNG will compete with diesel and gasoline as an alternative fuel.
1.3 How is the Natural Gas Compression produced?
When consumed at regular atmospheric pressure, methane is compressed to less than 1% mass in CNG. To make CNG easier to store and transport after compression, it will be kept in containers at a pressure of 20 to 25 Mpa. To maximize storage effectiveness, compressed natural gas tanks are often spherical or cylindrical. The following figure can approximate the actual process of creating and delivering compressed natural gas (CNG):
Gas source input → compression → transportation → depressurization at the customer station (PRU) → Connection to the furnace of consumers.
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