Overpressure, Low Temperature and Vacuum Rectification

The properties and behavior of the mixture sometimes mean that operation at over- 

Rectification under high pressure is used for vaporous mixtures having overhead products of high volatility. Overpressure is also required for the two pressure process. 

Extremely low-boiling substances such as air, natural gas, and liquid gases are sepa- 

RC Rectification column R Evaporator C Condenser/evaporator CH Head product cooler SJ Steam jet aspirator CV Condensate vessel CP Condensate pump 

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