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Distillation is a method of separating chemical substances based on differences in their volatilities in a boiling liquid mixture.

Continuous distillation, a form of distillation, is an ongoing separation in which a mixture is continuously (without interruption) fed into the process and separated fractions are removed continuously as output streams as time passes during the operation. A distillation is the separation or partial separation of a liquid feed mixture into components or fractions by selective boiling (or evaporation) and condensation

Distillation is one of the unit operations of chemical engineering.[1][2] Continuous distillation is used widely in the chemical process industries where large quantities of liquids have to be distilled.[3][4][5] Such industries are the natural gas processing, petrochemical production, coal tar processing, brewing, liquified air separation, hydrocarbon solvents production and similar industries, but it finds its widest application in petroleum refineries.

  1. Editors: Jacqueline I. Kroschwitz and Arza Seidel (2004). Kirk-Othmer Encyclopedia of Chemical Technology, 5th Edition. Hoboken, NJ: Wiley-Interscience. ISBN 0-471-48810-0. 
  2. McCabe, W., Smith, J. and Harriott, P. (2004). Unit Operations of Chemical Engineering, 7th Edition. McGraw Hill. ISBN 0-07-284823-5. 
  3. Kister, Henry Z. (1992). Distillation Design, 1st Edition. McGraw-Hill. ISBN 0-07-034909-6. 
  4. King, C.J. (1980). Separation Processes. McGraw Hill. 0-07-034612-7. 
  5. Perry, Robert H. and Green, Don W. (1984). Perry's Chemical Engineers' Handbook, 6th Edition. McGraw-Hill. ISBN 0-07-049479-7.