Single Refrigerant Liquefaction Process
This liquefaction process is also called cascade refrigeration liquefaction process or cascade liquefaction process. LNG evaporator Through the name of the process, we can know the main refrigerants used in the process, such as methane, ethylene or propane. In addition, a low-temperature environment is also required. The temperature after treatment will be around minus 30 degrees Celsius, minus 90 degrees Celsius, and minus 150 degrees Celsius. Under the dual effects of coolant and low temperature, the gaseous gas will be cooled and transformed into liquefied gas .
Expansion refrigeration liquefaction process
This liquefaction process is a liquefaction process that does not use refrigerant. The feature of this process of the LNG vaporizer is that the gas raw material gas is compressed and then throttled, and the temperature drops to achieve partial liquefaction. First, the compressor is used to process the gaseous gas. After the processing, the gas is cooled. After cooling, the cooled gas is expanded by an expansion machine to liquefy the gas. Using this process, the operation process is simple, and the cost is relatively low, which can be said to serve multiple purposes.
Liquefied petroleum gas itself has the characteristics of convenient storage and transportation, good performance and relatively high cleanliness, and the application of liquefied petroleum gas is also very wide.
https://www.chinavaporizer.com/