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[Chemical Knowledge]：Nature and use of liquefied natural gas

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Liquefied natural gas (LNG) is a clean and efficient energy source, which is widely used in the field of chemical production raw materials. This article will detail the nature and use of liquefied natural gas.

1. the nature of liquefied natural gas

liquefied natural gas is a form of cooling natural gas to below -162 ℃ and condensing it into a liquid state. The main component of LNG is methane (CH4), while containing a small amount of ethane, propane, butane and other hydrocarbon gases and nitrogen, carbon dioxide and other non-hydrocarbon gases. Due to its low temperature characteristics, LNG has the following properties:

1. Low temperature storage: LNG needs to be stored in a low temperature environment below -162°C, so special insulated storage tanks are required.

2. High calorific value: The high calorific value of LNG is about 55MJ/kg, which has a high energy density, so it is an efficient energy source.

3. Clean and environmental protection: The main components of the exhaust gas produced by LNG combustion are water and carbon dioxide, and it does not contain harmful substances. It is a clean and environmentally friendly energy source.

2. the use of liquefied natural gas

liquefied natural gas has a wide range of uses in the field of chemical production raw materials, mainly including the following aspects:

1. chemical raw materials: LNG can be used as chemical raw materials for the production of synthetic ammonia, methanol, ethylene and other chemicals. These chemicals are important raw materials for plastics, fibers, rubber, fertilizers and other products, so LNG plays an important role in the production of chemical products.

2. Energy supply: LNG can be used as energy supply for power generation, heating and other fields. Because of its high efficiency and clean characteristics, LNG has gradually become an important part of the global energy supply.

3. Transportation: LNG can be used as transportation fuel for ships, automobiles and other vehicles. Compared with traditional fuel vehicles, the use of LNG can reduce exhaust emissions and improve the environmental protection of transportation.

3. the advantages of liquefied natural gas in the field of raw materials for chemical production

liquefied natural gas in the field of raw materials for chemical production has the following advantages:

1. Clean environmental protection: the main components of the waste gas generated after LNG combustion are water and carbon dioxide, and do not contain harmful substances, so the use of LNG can reduce environmental pollution and improve the environmental protection of production.

2. High efficiency and energy saving: Due to the high calorific value and energy density of LNG, the use of LNG can improve production efficiency and reduce energy consumption.

3. Good stability: The composition of LNG is relatively stable and does not contain harmful impurities, which can ensure the quality and stability of chemical production.

4. Adequate supply: With the continuous development of global natural gas resources, the supply of LNG is becoming more and more abundant, which can ensure the supply of raw materials for chemical production.

In short, as a clean and efficient energy source, liquefied natural gas has a wide range of application prospects and advantages in the field of raw materials for chemical production. With the continuous improvement of global environmental awareness and the transformation of energy structure, the status of liquefied natural gas will become more and more important.

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