The uses of the liquid nitrogen are related with its availability, chemical inertia and lower temperature. The transport industries related with the alimentary sector use liquid nitrogen in refrigeration and freezing systems. With this process one can assure the original texture and the natural flavor of food. Nitrogen finds use in diverse commercial applications, including:
- Chemical Processing: To inert vessels and
oxygen-sensitive chemicals, to propel liquids through pipelines.
- Food: To extend shelf-life in packaged foods by
preventing spoilage from oxidation, Moisture migration and insect
infestation.
- Petroleum Recovery and Refining: To blanket
storage tanks and product loading/unloading, to purge pipelines.
- Metal Production and Fabrication: To protect
metals such as steel, copper and aluminum during annealing,
carburizing and sintering operations in high temperature furnaces,To
cool extrusion dies.
- Electronics: To prevent Oxidation in the
manufacture of semiconductors and printed circuits, To enhance
solvent recovery systems by eliminating the use of
chlorofluorocarbons for cleanup.
- Glass Manufacturing: To cool furnace
electrodes and prevent oxidation during manufacturing, To lower air
temperatures for optimum cooling rates.
- Research and Health Services: To freeze and preserve blood, tissue, semen and other biological specimens, To freeze and destroy diseased tissue in cryosurgery and dermatology, To pre-cool or insulate Magnetic Resonance Imaging (MRI), Conserving the more costly helium.