Liquid nitrogen (LIN) is a cryogenic liquid found at extreme low temperatures. It is a colorless & odorless liquid with a boiling point of (−195.79 °C). LIN is generated by cryogenic distillation of liquid air. It has numerous applications, industrial and medical, which we will discuss below. Being dense, it can be easily transported as a source of dry nitrogen. Industries and hospitals use automatic liquid nitrogen plant for producing constant supply of nitrogen for sustaining manufacturing operations. Amongst its various applications, LIN is used for treating skin diseases such as warts and actinic keratosis. It is also used for storing human and animals cells at cryogenic temperatures.
Manufacturing, designing and fabricating of automatic liquid nitrogen plant is based strictly on ING. L. & A. Boschi, Italy. The company is based in Italy since 1930s and has building world-class industrial gas plant ever since. Boschi components and materials are used in the making of our plant machinery. We source the materials from the best vendors in the industry. Our entire focus is one delivering the best quality products. Boschi is known for designing excellence that ensures amazing performance. We place a great deal of emphasis of quality of the machinery.
Air is taken from atmosphere and is let into the liquid nitrogen plant. The atmospheric air is compressed. Afterwards, it is sent to the molecular cleanup system where impurities such as hydrocarbons, moisture and carbon dioxide. Then, the air is sent into a heat exchanger where it is liquefied to cryogenic temperatures. Now, it is passed through high pressure distillation column where liquid nitrogen is formed at the bottom of the column. Distillation is continued till it meets the specification required by medical and industrial applications. Liquid nitrogen is stored into a cryogenic storage. And, a liquid vaporizer can be used for converting liquid nitrogen into dry nitrogen.