APPARATUS FOR SEPARATING GAS BY DISTILLATION OR WASHING AT A SUBAMBIAN TEMPERATURE

摘要

Distillation column intended to operate at a temperature below room temperature constituted by a metal enclosure (C) containing elements adapted to promote an exchange of mass and heat, substantially all the outside of the enclosure being coated with at least one layer of insulating material (I) which juxtaposes the outer surface of the enclosure, the layer or the outer surface of the layer in contact with the ambient being water-repellent, or even impermeable.