Characteristics of LNG vehicle-mounted gas cylinders gas cylinder 1. Economic advantages The temperature of LNG is about -162 °C, the pressure is about 0.1 MPa, the density is about 423 kg/m3, and the volume after gasification is about 600-624 times that of the liquid volume. 2.5 times. The onboard gas cylinders of large LNG trucks can travel continuously for 1 000-1 300 km with one refill, which is very suitable for long-distance transportation. The 410L vehicle-mounted gas cylinder can travel 400-500 km continuously in urban areas with one refill, and about 700 km with one refill on expressways. It can be seen that compared with the existing CNG and LPG vehicles, LNG vehicles have greatly improved the driving mileage of vehicles. 2. Security The ignition point of LNG is 650°C, and the explosion limit is 5% to 15%. After gasification, the density is small, and a slight leakage will immediately volatilize and diffuse; while the ignition point of LPG is 466°C, and the explosion li