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[Chemical Knowledge]：Specification for storage and transportation of liquefied natural gas

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Safety of liquefied natural gas storage and transportation specifications

1. Introduction

Liquefied natural gas (LNG) is a clean energy source. Due to its high efficiency and environmental protection characteristics, it has been widely used worldwide. However, due to the special nature of LNG, there are certain safety risks during its storage and transportation. Therefore, it is of great significance to formulate a set of strict LNG storage and transportation standards to ensure its safety, which is of great significance to ensure the safety of people's lives and property and promote the healthy development of chemical production raw materials.

2. the basic characteristics of liquefied natural gas

The main component of liquefied natural gas is methane, which can be liquefied by cooling to about -162 ℃ under normal pressure. LNG has the following characteristics:

1. Low temperature: LNG storage and transportation process needs to maintain a low temperature state, once exposed to the normal temperature environment, LNG will quickly vaporize, the volume of rapid expansion, may cause safety accidents.
2. Flammable and explosive: LNG mixed with air may cause explosion and combustion under certain conditions.
3. Low temperature frostbite: exposure to LNG may cause low temperature frostbite.

3. safety of liquefied natural gas storage specification

1. Site selection: LNG storage facilities should be located in stable geological conditions, away from densely populated areas. At the same time, the construction of storage facilities in areas prone to natural disasters such as earthquakes and floods should be avoided.
2. Facility design: The storage facility shall be designed as a double-layer structure, with the inner layer for LNG storage and the outer layer for thermal insulation. Facilities shall be well sealed to prevent leakage of LNG.
3. Safety facilities: The storage facilities shall be equipped with safety facilities such as fire alarm system, combustible gas detection system and emergency cut-off system to ensure that safety accidents can be detected and taken in time.
4. Personnel management: Conduct regular training for staff to improve their safety awareness and operational skills. The staff shall strictly abide by the safety operation regulations and wear protective articles.

4. safety of liquefied natural gas transport specification

1. transport vehicles: should use dedicated LNG transport vehicles, vehicles should have good thermal insulation performance and sealing performance, to prevent LNG in the transport process of gasification or leakage.
2. Transportation route: The route with stable geological conditions and good traffic conditions shall be selected for transportation. Avoid driving in dangerous areas such as densely populated areas and areas prone to natural disasters.
3. Transportation safety: During transportation, you should maintain a low speed and avoid sudden braking, sharp turns and other operations to reduce risks during transportation. At the same time, professional escort personnel should be equipped to monitor the whole transportation process.
4. Emergency measures: Transport vehicles shall be equipped with fire extinguishers, fire blankets and other fire fighting equipment to deal with possible fire accidents. At the same time, detailed emergency plans should be formulated and regular drills should be conducted to improve the ability to respond to emergencies.

5. conclusion

the safety of LNG storage and transportation regulations is of great significance to ensure the safety of people's lives and property and promote the healthy development of chemical production raw materials. In practical work, we should strictly abide by relevant specifications, strengthen safety management, and ensure the safety and controllability of LNG storage and transportation. At the same time, the technical level should be continuously improved to promote the healthy development of the LNG industry.

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