LNG stands for Liquefied Natural Gas, a premium natural gas product primarily composed of methane. Natural gas boasts high calorific value, low pollution, and ease of storage and transportation, making it one of the preferred high-quality energy sources in modern society. LNG is the result of purifying and processing natural gas from gas fields, removing all impurities, and then cooling it to approximately -162°C at atmospheric pressure, condensing it into a safe, colorless, odorless, and non-toxic low-temperature liquid. It features high purity, high safety, high storage efficiency, and flexible transportation. Its volume is about 1/600th of the same amount of gaseous natural gas, and its weight is approximately 45% of the same volume of water.

　　Safety Advantages of LNG

Due to its excellent physical and chemical properties, it is safe: has a high ignition point, an auto-ignition temperature of 590 degrees Celsius, a narrow combustion range of 5-15%, lighter than air and easy to disperse. LNG will quickly heat up and vaporize upon leakage, and the gas density of the natural gas after vaporization is about half of the air density, making it highly volatile but non-flammable, and non-toxic. Methane has relatively stable chemical properties and can burn quietly in the air without promoting combustion.

Due to superior storage conditions and safety: The tank material maintains its mechanical strength, such as tensile and compressive strength, low-temperature impact toughness, and coefficient of thermal expansion under low-temperature working conditions, making it suitable for operation in cold environments. The tank foundation can withstand low temperatures in direct contact with LNG. The insulation material is non-flammable and has sufficient strength to withstand the impact of fire-fighting water, with a reliable safety protection system. Automotive LNG is stored in insulated containers at pressures ranging from 0.05 to 0.5 MPa, which is significantly lower than the storage pressure of CNG at 20 MPa, thereby enhancing safety. The low-temperature automotive cylinders have undergone strict inspections including high-temperature tests, impact tests, and vehicle simulation tests by the National Quality Supervision and Inspection总局. Even in the event of an accident, LNG leakage is highly unlikely.

　　Economic Advantages of LNG

Due to its high calorific value, it is economical. Compared to coal, natural gas, and liquefied gas, LNG has a higher calorific value and a relatively stable price that is less affected by international fluctuations. The calorific value of LNG is 12,000 kcal, while good coal only has about 8,000 kcal per kilogram. An LNG vehicle of the same displacement can save about 20% on fuel costs compared to gasoline and diesel vehicles, and its maintenance costs can also be reduced by about 10%. Although there is a price difference of around 80,000 yuan between LNG heavy trucks and diesel trucks, the operational advantage is significant due to lower fuel expenses. The driving range equivalent to 1 cubic meter of LNG (after gasification) is equivalent to 0.95 liters of diesel (Number 0). Calculations show that a trailer can save about 80,000 to 140,000 yuan in fuel costs annually. Dump trucks can save around 100,000 yuan in fuel costs annually.

　　Advantages of LNG Transportation

Low temperature, high gas-liquid expansion ratio, high energy efficiency, easy to transport and store. Natural gas is piped, providing a continuous supply, with simple and easy-to-operate equipment. It is straightforward and convenient for long-distance transportation, and cost-effective. With the rapid development of the global natural gas industry, liquefied natural gas (LNG) has become an important part of international natural gas trade. Compared to a decade ago, global LNG trade volume has doubled, showing a strong growth momentum.

　 Convenience advantages of using LNG

Convenient due to the LNG refueling time, which is even shorter than fueling. Long-distance LNG buses equipped with two cylinders can safely travel over 1,000 kilometers, requiring only a few minutes to refuel.

Convenient due to LNG's power performance. LNG's power performance is not inferior to diesel vehicles, with a longer driving range. A LNG truck equipped with two 450-liter gas cylinders can travel 800-1,000 kilometers.

Due to the mature development chain of LNG. China has established a complete technological and industrial chain for LNG vehicles. The core technology of natural gas engines and low-temperature vehicle cylinders has been refined, with vehicle assembly, spare parts production, and maintenance technologies all meeting international standards.

The clean and environmental advantages of LNG

LNG is considered the cleanest fossil fuel on Earth, offering significant environmental benefits.

Clean due to the chemical properties of its main component, natural gas significantly reduces emissions of carbon dioxide, carbon monoxide, sulfur oxides, dust, and other pollutants such as nitrogen oxides and coal slag when compared to coal as a fuel source. This contributes to a substantial improvement in environmental quality, yielding substantial social benefits.

Cleaned due to the liquefied natural gas production process. During the liquefaction process, after natural gas is deeply cooled, it first passes through a gas-liquid filter to remove mechanical impurities and free liquid droplets; then, a raw gas heater uses MDEA to absorb CO2 and H2S from the natural gas; followed by processes like decarbonization, dehydration, dehydrocarbonation, and mercury removal; and finally, a dust filter is used to remove dust from the natural gas, among other purification steps, resulting in -162°C liquefied natural gas. Data shows that using engines that burn LNG reduces overall emissions by about 85% compared to gasoline and diesel, with a 72% reduction in hydroxides in car exhaust, a 97% reduction in carbon monoxide, a 39% reduction in nitrogen oxides, a 24% reduction in CO2, a 90% reduction in sulfur dioxide, a 40% reduction in noise, and the absence of lead, benzene, and other carcinogens; it also contains minimal sulfur compounds.

Huzhou Boiler Factory Co., Ltd.

　LNGTank features: The tank is equipped with an automatic steel shot blasting rust removal process, achieving an extremely effective rust removal, exceeding SA2.5 standards, with a very strong paint adhesion. The paint used is imported from Norway, the Jotun brand.5-year warrantySand filling uses negative pressure suction and positive pressure compaction, along with vibration rod technology, significantly increasing the sand filling capacity of the sandwich. The insulation effect of the storage tank is very good. The quality of vacuum is an important indicator for testing the storage tank's performance. Our company has professional technicians dedicated to vacuum research, capable of achieving complete vacuum within a week, ensuring that the vacuum and gas leakage rate upon shipment are half of the standard规定的值.

In the environment surrounding low-temperature liquid storage tanks, the vaporized leaked low-temperature liquid can easily form a rich gas area. High concentrations of nitrogen, argon, or carbon dioxide can readily cause asphyxiation injuries. Additionally, elevated oxygen concentrations can lead to hyperoxic injuries. Oxygen is a powerful oxidizer with a strong oxidizing nature. When liquid oxygen is in close proximity to combustible materials, it can easily ignite upon contact with an open flame; upon contact, it can easily produce explosions due to vibrations or impacts; and when mixed with combustibles, it poses a potential explosive risk in liquefied natural gas storage tanks. Liquid oxygen can adhere to clothing fabrics, and upon encountering an ignition source, it can easily cause a flash fire, resulting in personal injury.