Characteristics of liquefied petroleum gas carrier

At present, the goods transported by LPG carriers in China are mainly LPG mixed with propane and butane. At a certain temperature and pressure, the cargo liquid and the cargo vapor will change each other and be in a relatively stable saturated equilibrium state at ordinary times. The difference between LPG carriers and other liquid tankers is that the goods must be stored in pressure vessels (cargo tanks). During the whole process of loading, unloading and transportation, the goods are completely invisible. In the process of loading and unloading, two pipelines, gas phase and liquid phase, must be connected between the ship and the shore. Goods are composed of liquid and gas, and the weight of steam should also be included in the weight of goods.