- LPG is a portable, clean, and efficient energy source composed mainly of propane and butane.
- It is stored as a liquid in pressurized cylinders and is widely used for household cooking.
Compressed Natural Gas (CNG)
- CNG is an environmentally friendly automotive fuel composed primarily of methane (80–90%).
- It is compressed to a pressure of about 200–250 kg/cm², allowing large amounts of gas to be stored in small vehicle tanks.
- CNG remains in gaseous form.
- CNG is widely used to reduce vehicular greenhouse gas emissions.
Piped Natural Gas (PNG)
- PNG is composed mainly of methane (CH₄) with small amounts of other hydrocarbons.
- It is supplied directly to households, commercial establishments, and industries through pipelines.
Liquefied Natural Gas (LNG)
- LNG is natural gas, primarily methane, cooled to –160°C to convert it into liquid form.
- It is transported in specialized cryogenic tankers and stored in insulated tanks at terminals near ports.
- Qatar supplies roughly half of India’s LNG imports.
- Use in electricity generation, fertilizer production, city gas distribution, and industrial processes.
Source: The Hindu