Usage: With the development of the petrochemical industry, liquefied petroleum gas (LPG), as a basic chemical raw material and new fuel, has been increasingly valued by people. In chemical production, liquefied petroleum gas is separated to obtain ethylene, propylene, butadiene, and other materials, which are used to produce synthetic plastics, synthetic rubber, synthetic fibers, and pharmaceuticals, explosives, dyes, and other products. Liquefied petroleum gas is used as a dye due to its high calorific value, smoke-free, and carbon free properties, making it easy to operate and use. It has widely entered the field of people's lives.