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An air separation plant separates atmospheric air into its primary components, typically nitrogen and oxygen, and sometimes also argon and other rare inert gases. The most common method for air separation is fractional distillation. Cryogenic air separation units (ASUs) are built to provide nitrogen or oxygen and often co-produce argon.
The McCabe–Thiele method is a technique that is commonly employed in the field of chemical engineering to model the separation of two substances by a distillation column. [ 1 ] [ 2 ] [ 3 ] It uses the fact that the composition at each theoretical tray is completely determined by the mole fraction of one of the two components.
Oxygen-enriched air is in high demanded for a range of medical and industrial applications including chemical and combustion processes. Cryogenic distillation is the mature technology for commercial air separation for the production of large quantities of high purity oxygen and nitrogen.
Design and operation of a distillation column depends on the feed and desired products. Given a simple, binary component feed, analytical methods such as the McCabe–Thiele method [4] [6] [7] or the Fenske equation [4] can be used. For a multi-component feed, simulation models are used both for design and operation.
2 are extracted from air for industrial uses annually by two primary methods. [20] The most common method is fractional distillation of liquefied air, with N 2 distilling as a vapor while O 2 is left as a liquid. [20] The other primary method of producing O
Distillation, also classical distillation, is the process of separating the component substances of a liquid mixture of two or more chemically discrete substances; the separation process is realized by way of the selective boiling of the mixture and the condensation of the vapors in a still.
Cryogenic distillation may refer to: The cryogenic air liquification process used to separate gases from air. Cryogenic liquification processes more generally, such as the liquification of Natural Gas , or the liquification of processed oxygen and methane gas on Mars to make rocket propellants and storable chemical feedstuffs for other processes.
Mass transfer is the net movement of mass from one location (usually meaning stream, phase, fraction, or component) to another.Mass transfer occurs in many processes, such as absorption, evaporation, drying, precipitation, membrane filtration, and distillation.