NITROGEN (-320°F)
" Nitrogen is probably the most common cryogen handled. Liquid nitrogen is commonly produced by "distilling" it from liquid air. This distillation process also produces liquid oxygen and sometimes liquid argon. Once liquefied the nitrogen can be shipped in bulk to other locations by railcar or trailer. You have probably been behind a liquid nitrogen trailer, labeled Nitrogen Refrigerated Liquid, many times on the highway. Once at its destination it can be used as a cryogenic liquid but most often it is vaporized and used as a gas.
Nitrogen has many uses, but the bulk of it is consumed by the chemical, electronics and food industries. Nitrogen is often used in chemical and petrochemical facilities as a blanket, purge, or dry gas because it is inert and water-free. Again, its inert properties make it ideal for the manufacture of semiconductors and other clean processes. Liquid nitrogen plays a major role in the flash freezing of food to minimize product damage and dehydration. Nitrogen gas is injected into the aluminum cans containing non-carbonated drinks to provide the internal pressure necessary to minimize denting. Nitrogen injected into food packaging can prevent food discoloration, maintain crispness, and general product degradation. "
psi | BAR | KPa | Atm | Bar | psi | Kpa | Atm | |
---|---|---|---|---|---|---|---|---|
1 | 0.069 | 6.89 | 0.068 | 1 | 15 | 100 | 0.99 |
Or Hydrogen?? :-)
"10.000 PSI / 700 bar Filling Station
Linde has created the world’s first hydrogen filling station using 700-bar technology for the Adam Opel AG. This represents an important milestone on the road to the hydrogen-powered car society.
In comparison to the usual 350 bar (5,000 PSI) systems, the higher storage density of the 700-bar technology extends the range of a fuel cell vehicle by 60 to 70%.
This advance gives the fuel cell vehicle a range of over 400 km (250 miles), which is one of the most important pre-requisites for widespread use of cars powered by compressed hydrogen.
The filling station, in the Opel test centre at Dudenhofen near Offenbach, Germany, was designed and built as a turnkey project by Linde. "
A veritable bomb even without a spark!
Fill'er up Scotty. :-)
Frederick