CO2 And N2O Liquefier

Carbon dioxide, CO2, and nitrous oxide, N2O, are fluids used in supercritical extraction. Mixtures. of N2O and CO2 are excellent candidates to be used as supercritical fluids. CO2 liquefaction is an essential process for long-distance ship transportation. The conventional CO2 liquefaction process employs either an external coolant or liquid expansion followed by multistage compression to obtain liquefied CO2 at low pressure.Liquid carbon dioxide is used for freezing and chilling of food products; carbonation of beverages; water treatment; low temperature testing of aviation and electronic components; oil and gas well stimulations; and controlling chemical reactions.Gaseous CO2 can be liquefied under pressure provided its temperature is below 31 °C (87,8 °F), this temperature being referred to as the CRITICAL POINT. If compressed and cooled below the critical point, a colourless fluid, approximately the same density as water, is produced.