Gas quality requirement

The quality of natural gas shall meet the requirements of the "Natural gas" (GB 17820-2012), in which natural gas is divided into three categories. First, the second type of natural gas is mainly used as civil fuel, and the third type of natural gas is mainly used as industrial raw materials or fuel. Artificial gas contains tar and dust. Naphthalene will be white crystal after saturation, and tar and dust, easy to block the pipeline and fuel, artificial gas contains nitrogen, after combustion will produce NO, and other harmful gases. The quality standard of artificial gas follows the technical indicators stipulated in "Artificial gas" (GB/T 13612-2006).

The quality of liquefied petroleum gas (LPG) follows different standards according to its source, and the LPG produced by petroleum refineries meets the quality technical indicators specified in the "Liquefied Petroleum Gas" (GB 11174-2011). According to the "Urban gas Design Code" (GB 50028-2006), urban gas should have a perceptible odor, and the minimum amount of gas odorant should meet the following requirements: 1. Non-toxic gas leaks into the air, reaching 20% of the lower explosive limit, should be detectable. (2) Toxic gas leaks into the air to reach the harmful concentration allowed for the human body, should be detected, for carbon monoxide as a toxic component of gas, carbon monoxide content in the air reached 0.02%, should be detected.