What is Natural Gas?

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It is known that there is a new standard regarding gas storage facilities, and I am currently looking into the types of gases related to this regulation. Could you please inform me about natural gas? What types of gases is it composed of? Thank you!

Based on Section 1.4.4, Item 1 of the National Technical Regulation QCVN 01:2019/BCA issued with Circular 52/2019/TT-BCA stipulates:

- Natural gas is a mixture of hydrocarbons with the main component being methane (CH4) with a content of up to 98%. The composition of natural gas also includes other hydrocarbons such as ethane, propane, butane... Natural gas is used in two main forms: high-pressure compressed gas and liquefied gas.

- Compressed natural gas (CNG) is natural gas, methane compressed at a high pressure of 200 - 250 bar.

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