METHOD AND DEVICE FOR SEPARATION AT SUB-AMBIENT TEMPERATURE

摘要

In a method for separation at sub-ambient temperature, a mixture of fluid (A, B) at a sub-ambient temperature is sent to a system of separation columns comprising at least one separation column (3, 5), a fluid enriched in a lighter component of the mixture exits from a head of the column of the system and a fluid enriched in a heavier component is withdrawn from the vessel of a column of the system, the cold source of a heat pump (MC, MC1, MC2, MC3) using the magnetocaloric effect is thermally linked to a first area (1) of a column of the system and the hot source of the same heat pump is thermally linked to a second area (2) of the same or of another column of the system.