2. Although 65438+February is still in the traditional peak consumption season of LPG market, the trend of "peak season" is obvious. In addition to the weak foundation, the international spot and futures markets are weak, which intensifies the market pessimism. On the whole, there are still downward expectations in the future LNG market in Northeast China, and the bottom line is further lower than 1 1. Merchants are advised to wait and see first and enter the market as needed.
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1. Liquefied petroleum gas (LPG) is a colorless volatile liquid obtained by pressurizing and cooling natural gas or oil in an oil refinery. Spontaneous combustion is easy. When the content in the air reaches a certain concentration range, it may explode in case of fire.
2. Liquefied petroleum gas obtained from the refinery is mainly composed of one or two of propane, propylene, butane and butene, and is also doped with a small amount of pentane, pentene and sulfide impurities. If LPG is to be further purified, the oxygen sulfide can be absorbed and removed by ethanolamine absorption tower, and finally the excess sulfide can be washed away by alkali.
3. Liquefied gas obtained from natural gas basically does not contain olefins. Liquefied petroleum gas is mainly composed of hydrocarbons, and the main components are alkanes such as propane and butane. Of course, there are standards for the composition of liquefied petroleum gas. Not all substances composed of this component can be called liquefied petroleum gas. Only when the proportion of propane and butane exceeds 60% can it be called liquefied petroleum gas.
Of course, not all standards are the same. In foreign countries, their regulation of LPG is more flexible. Its definition needs to adjust the composition of propane and butane according to seasonal changes. But as long as the domestic liquefied petroleum gas is domestic at present, there is no such worry. If it is to be applied to industry, we need to formulate further and more detailed proportional rules for the combination standard of liquefied petroleum gas.
Liquefied petroleum gas has been widely used in people's lives because of its high calorific value, smokeless, carbon residue-free and convenient operation. In addition, liquefied petroleum gas is also used for cutting metals, baking agricultural products and baking industrial furnaces.
I hope I can help you.