METHOD AND APPARATUS FOR THE LOW-TEMPERATURE FRACTIONATION OF A FLUID MIXTURE

摘要

The method and the apparatus are used for the low-temperature fractionation of a fluid mixture. The fluid mixture is introduced into a separation column. At least a portion of the sump liquid from the separation column is introduced into a sump evaporator and at least partly evaporated there. At least a portion of the vapor produced in the sump evaporator is led back into a lower section of the separation column. A top product is removed at the top of the separation column, and a sump product is removed from the sump of the separation column or from the sump evaporator. The sump evaporator is operated by means of inductive heating.

主权项

1. A method for the low-temperature fractionation of a fluid mixture in which the fluid mixture is introduced into a separation column, at least part of the bottom liquid of the separation column is introduced into a bottom evaporator and at least partially evaporated there, at least part of the vapor generated in the bottom evaporator is returned into a lower portion of the separation column, a top product is removed at the top of the separation column and a bottom product is removed at the bottom of the separation column or from the bottom evaporator, characterized in that the bottom evaporator is operated by inductive heating.