What is Compressed Natural Gas For Vehicles?

As a CNG Cylinder Manufacturer, share it with you.

Compressed natural gas for vehicles is stored in a dedicated pressure vessel and used as vehicle fuel (the main component is methane). Compressed natural gas for vehicles is a kind of clean energy that can eliminate the pollution of the atmosphere from vehicle exhaust. In recent years, the use of compressed natural gas for vehicles has been increasing in some large cities in my country.

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The compressed natural gas for vehicles is directly injected into the compressed natural gas vehicle, and the power requirements and safety requirements of the vehicle must be guaranteed. The quality of imported natural gas at the parent station or sub-station based on the urban pipeline network will also affect the quality of exported natural gas and directly affect the power and safety of vehicles. Therefore, the quality of imported natural gas at compressed natural gas refueling stations should also be strictly controlled.

According to the high calorific value, the total sulfur, hydrogen sulfide and carbon dioxide content of natural gas is divided into one, two and three categories. In order to make full use of the natural properties of natural gas as a mineral resource, in accordance with different requirements and combined with the reality of natural gas resources in my country, this standard divides natural gas into three categories based on total sulfur, hydrogen sulfide and carbon dioxide content.

As industrial gas. The controlled content of hydrogen sulfide in commercial natural gas in the world is mostly 5~23mg/m 3. Taking into account that in the process of urban gas distribution and storage, especially during mixing and adjustment, water may be mixed in. In order to prevent the corrosion of the gas distribution system and ensure the health of residents, this standard stipulates that the hydrogen sulfide content in the first and second types of natural gas shall not exceed 6 mg/m 3 and 20 mg/m 3 respectively. The technical indicators of natural gas should meet the requirements of Table 2-5. For natural gas used as a civil fuel, the total sulfur and hydrogen sulfide content should meet the requirements of Class I or

The technical indicators of Class II gas. As automotive natural gas, it should meet the first class standard, because automotive natural gas

The pressure is generally 20-25MPa. Hydrogen sulfide can be directly dissolved in water to form acid. Sulfur can also form sulfuric acid after combustion, which will corrode compressors, pipelines, gas cylinders, and vehicle gas storage tanks, reducing equipment strength and causing physical explosions. It can also cause corrosion to the vehicle engine and exhaust system, affecting the service life of the vehicle.

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