Process for fractionating a liquid mixture employing a plate heat exchanger as fractionation column and its application to the production of liquefied petroleum gas

摘要

Chemical engineering. The invention relates to a process for fractionating a mixture of at least three constituents with different boiling points, which is characterised by the use of a plate exchanger 11 as fractionating column. Application to the extraction of liquefied petroleum gas. <IMAGE>