Cryogenic process technology is a technology applied to industrial production, the main purpose of which is to carry out the relevant production process at low temperatures by controlling the temperature of the object. This technology involves the processing and manufacturing of substances at sub-room temperatures, and is widely used in many fields, such as chemical, pharmaceutical, food processing, scientific research, industrial manufacturing, medicine, and aerospace.
At low temperatures, the molecular activity of the object is slowed down, resulting in a reduced reaction rate, allowing for fine control of the product. This helps to extend shelf life, preserve the nutritional content and taste of the product, and reduce energy consumption and pollutant emissions.
Common cryogenic technologies include cryogenic freezing, cryogenic refrigeration, and low-temperature freeze-drying. Low-temperature freezing is to put food or medicine into a low-temperature environment and keep it fresh through refrigeration; low-temperature refrigeration is to store food or medicine at a lower temperature to delay its deterioration and loss; and low-temperature freeze-drying is to evaporate the water in the substance through freezing and vacuum drying to maintain its quality and nutrients.
In aerospace, cryogenic technology is used for liquid rocket fuel and propellants, in medicine, it is used to preserve biological samples, cryopreserve organs, and perform medical procedures, and in industrial manufacturing, cryogenic technology is used to make high-purity materials, semiconductors, liquefied natural gas, etc.
With the continuous progress of science and technology, low-temperature process technology is also developing and improving, providing important support for the production and development of various fields.
