A word of caution if you’re planning to try this cryocooler method for making liquid nitrogen: not only does it involve toxic and flammable gasses and pressures high enough to turn the works into a ...

IN nearly all refrigeration processes, whether for the moderate cooling associated with food preservation or for the, liquefaction of the ‘permanent’ gases, the operations are basically similar. A gas ...

A new technology based on the adiabatic cooling of swirling gas flow in a supersonic nozzle is effective in separating and processing natural gas components. A pilot test facility in Alberta, Canada, ...