Cryogenic liquid nitrogen (LIN) supports, many industries such as healthcare, food, manufacturing, and semiconductors with its extreme cooling and preservation properties. Fullcryo provide cryogenic liquid nitrogen production and storage solutions based on application scenarios.
The boiling point of liquid nitrogen is -196℃ (-320.8℉), far exceeding the conventional Cryogenic range, making it a type of Cryogenic chemical substance. In daily life, when the temperature drops below -150℃, many biological metabolic processes and chemical reactions significantly slow down or even cease. This is the key to achieving long-term preservation and sample storage.
Cryogenic nitrogen is colorless, odorless and non-toxic (under correct operation), but its volume expands sharply when vaporized (1L LIN → approximately 700L gaseous nitrogen), and it has special requirements for storage and use.
Liquid nitrogen is applied in multiple fields and plays a silent role, from the preservation of medical samples to the freshness preservation of food, and even to the precise temperature control of semiconductors. This core advantage lies in providing a stable cryogenic environment so LIN can be adapted to the needs of different industries.
In medical treatment, LIN is a core consumable for cryotherapy, which can precisely remove warts and diseased tissues and reduce the impact on healthy tissues. In scientific research, it can preserve biological samples such as blood, sperm and stem cells for a long time, laying a foundation for medical research.
Cryogenic liquid nitrogen, when applied in the food industry, can instantly freeze them to form fine ice crystals, keeping the freshness of food ingredients while preventing the loss of nutrients. Cryogenic LIN in daily life is used in the processing of meat, seafood and fruits and vegetables. In the beverage industry, in many high-end restaurants, customers can also make creative delicacies such as LIN ice cream, providing a great visual and taste experience.
For more information, you can refer to the article previously published by Fullcryo: The Application of Nitrogen in the Food Industry.
The use of LIN in metal processing enables parts to shrink at low temperatures, facilitating precise assembly. When welding and 3D printing, it can lower the temperature in the processing area, reduce oxidation, improve product quality and lower the scrap rate.
For more information, you can refer to the article previously published by Fullcryo: The Application of Nitrogen in the Welding Industry
The process of semiconductor manufacturing has very high requirements for temperature accuracy, mainly to ensure the performance and yield of the chips on the market. LIN provides a stable Cryogenic environment in processes such as wafer manufacturing and photolithography. As a core material for low temperatures, LIN and other inert gases are key to the production of high-performance chips.
You can refer to the article previously published by Fullcryo: Applications of Key Industrial Gases in Semiconductors
Fullcryo offers industrial-grade cryogenic liquid nitrogen. The main process uses air as raw material (containing 78% nitrogen) and involves three steps: “high-pressure compression → extreme cooling liquefaction → distillation separation” to produce cryogenic nitrogen and other cryogenic industrial gases. It should be noted that 700 liters of gaseous air can only produce 1 liter of liquid air, and traditional production consumes a large amount of resources.
https://www.fullcryogas.com/products/air-separation-unit/
1.PSA nitrogen generator
The PSA LIN production equipment consists of carbon molecular sieves and dual pressure adsorption towers. It can produce nitrogen on-site (which can be liquefied), with a purity of up to 99.999%. The purity adjustment is flexible and it is suitable for small and medium-sized enterprises with stable LIN supply. On-site nitrogen generation enables enterprises to control the supply, avoiding production disruptions caused by external transportation delays and shortages, eliminating transportation losses and costs, and reducing expenses in the long term.
The Cryogenic liquid nitrogen cold box is a double-layer insulated and sealed container, equipped with a heat exchanger and distillation tower. It cools air to the liquid state and separates nitrogen and oxygen to produce LIN with a purity of 99.999%. The load adjustment range is 50% to 120%, making it suitable for large-scale industrial production.
As a globally leading manufacturer and supplier of cryogenic equipment, Fullcryo not only supplies cryogenic nitrogen but also assists customers in building large and medium-sized cryogenic LIN production plant projects.
We Supply EPC Cryogenic LIN plant project which adopts a fully skid-mounted design, with a short installation and commissioning period. Cryogenic LIN plant is often equipped with a fully automated control system, supporting remote monitoring and unattended operation.
The purity of liquid nitrogen from Fullcryo supply can be regulated within the range of 99.99% to 99.9999%, and it is directly supplied through pipelines to meet the high-capacity demands of large enterprises. Fullcryo offers full-process services to ensure the stable operation of equipment.
Liquid nitrogen storage requires dedicated equipment as the low temperature of -196℃ can damage ordinary containers and vaporization can cause a sudden increase in pressure. The storage container needs to have both super heat preservation (to reduce vaporization) and safety pressure relief (to avoid accidents) functions.
The liquid nitrogen Dewar tank adopts a double-layer vacuum structure, with a reflective film coated on the inner layer, providing excellent heat preservation. Equipped with a pressure relief valve to ensure safety. It has a rich capacity (ranging from several liters to several hundred liters), is easy to move, and is suitable for laboratories and small businesses.
Liquid nitrogen cryogenic storage tanks are mostly made of high-strength alloys and feature multi-layer vacuum insulation design, with a daily evaporation loss rate of no more than 2%. Liquid nitrogen storage tanks are also suitable for transportation. Large tank-type storage tanks can achieve long-distance distribution, meeting the storage needs of large enterprises and the supply demands of enterprises without on-site nitrogen production conditions.
Enterprises need to select solutions based on production scale, technical requirements and cost budget: Small and medium-sized enterprises can choose PSA nitrogen generators + Dewar flasks. Large enterprises are advised to choose Cryogenic cold boxes/medium and large-sized facilities + Cryogenic storage tanks.
It is recommended to give priority to Fullcryo, a professional supplier of cryogenic equipment and industrial gases, to obtain liquid nitrogen cryogenic equipment, technology and full-cycle service support, and let liquid nitrogen contribute to production development.
