How to compress methane gas safely

Methane gas is a chemical compound, the simplest alkaline, and the main component of natural gas. Burning methane gas with oxygen produces large amounts of carbon dioxide and water. Since methane is a gas at normal temperature and pressure, it is extremely difficult to transport from its source to a new location. It is usually transported in bulk in the form of gas by pipes. Methane has a high global warming potential and is an important factor in the weakening of the ozone layer. The compression of this natural gas by a professional allows its use as fuel for vehicles, which is considered more ecological than some other types of fuels.


1-Lower the tank temperature to a very cold level so that the methane gas will be compressed. In this state, with a temperature close to absolute zero, the methane gas will turn into liquid methane. Methane is considered non-compressible in the form of gas, because when it is compressed, it returns to its liquid form, which is why oil refineries burn excessive methane gas due to storage problems.

2-Mount the compressor so that it is ready for use. You will have to connect the pipe fitting, the pipes and the valves in the tank.

3-Connect the compressor to the tank filled with the methane gas. The methane gas container also has to be connected to the liquid nitrogen tank with the pipe. Release the container with the methane to the cryogenic liquid nitrogen tank. Close the valve once all the methane has entered the liquid nitrogen tank.

4-Cool the methane gas in the nitrogen tank for at least two days. Activates the compressor and lets compress the gas. The gas needs to be compressed at approximately 200 psi (pounds per square inch) for an amount of approximately 4 gallons (15 l).

5-A certain amount of pressure, around 46 bars, is recommended for methane gas. Bars is a unit of measurement that is roughly equivalent to the atmospheric pressure of the Earth at sea level. The methane will slowly compress and deposit in the bottom of the tank.


  • It is not recommended to compress your own methane gas, as it can be very dangerous. You will have to do extensive research on the subject if you are going to compress the methane gas. This compression process is very expensive to make and maintain. To create this type of system it will also be necessary to obtain permits from environmental agencies that allow you to contain methane gas for domestic use or distribution. Methane gas is highly flammable and should be kept away from flames or high heat at all times. It has to be stored safely at room temperature.

You will need to

  • A compressor
  • Accessory for pipes
  • A pipe
  • Valves
  • Liquid nitrogen
  • A metal tank or container




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