Liquefied gas is a kind of petroleum products, which is abbreviated as LPG in English. It is a colorless and odorless gas, which is obtained from oil and gas field exploitation or deep processing of oil and coal. It is gaseous at normal temperature and pressure, and can be condensed into liquid under the conditions of pressurization and cooling, so it is called liquefied petroleum gas. The pungent smell of liquefied gas is a strong odor substance ethanethiol added during transportation or storage, so the leakage of liquefied gas will be easily found.
With the change of different social needs, the consumption structure of liquefied gas in China is also changing gradually. In 20 15, the total amount of combustion gas in China was about 21050,000 tons, and it rose to about 27190,000 tons in 20 19, an increase of 29.2% compared with 20 15. The rapid development of Internet catering take-out industry in China has led to a substantial increase in the demand for liquefied gas.
Liquefied gas obtained from the refinery is mainly composed of one or more of propane, propylene, butane and butene, and is also doped with a small amount of pentane, pentene and a small amount of sulfide impurities. The boiling point of propane is -42 degrees Celsius, and the boiling point of butane is about -0.6 degrees Celsius. It is a particularly useful portable fuel. Traders should make sure that their account equity funds are sufficient before entering the market, and the price will run between 3080-3 170 after opening today.
From the consumption structure, liquefied gas can be divided into fuel and chemical uses, and fuel uses can be further divided into civil, industrial, automobile fuel and other uses. In 20 18, the global consumption of liquefied petroleum gas fuel reached more than 200 million tons, accounting for 70%, of which civil fuel accounted for 48. 14%, still the largest consumption point.
Liquefied gas has the advantages of high calorific value, no smoke, no carbon residue and convenient operation and transportation, and has been widely used in people's lives. Because of the above advantages, liquefied gas is widely used as industrial, commercial and civil fuel. The application fields are automobile, city gas, nonferrous metal smelting and metal cutting, kiln roasting and other industries.