摘要:
A method for the treatment of a liquid bath (5) containing at least 70 % mols of oxygen collected at the foot of a column (1) or element (3) of a cryogenic distillation column. The liquid bath (5) is continuously vaporized with the aid of at least one first vaporizer (6, 21, 22, 23) made of aluminium and part of the oxygen-rich liquid bath (5) is purged in order to avoid an excessive accumulation of inflammable impurities in said bath (5). The purged part is transported to at least one second vaporizer (13, 24) which is less inflammable than the first vaporizer as a result of the construction and/or material thereof; the oxygen vaporized by the second vaporizer is returned to the cryogenic distillation column (1) and part of the oxygen-rich liquid bath (5',12') treated by the second vaporizer (13,24) is purged. The invention also relates to a system for carrying out said method.
摘要:
The invention relates to a strip, made from a sheet material, for a packing module for treatment of liquids, comprising corrugations, which are mainly oriented at an inclination to the direction of flow of said liquid, when the strip is in an approximately vertical plane with the edges thereof approximately horizontal. The strip comprises openings (44) with extended edges. The direction of the edges on the lower section of the openings and the natural direction of flow (S) of the liquid on at least 75 % of the length of the edges of said lower section form an included angle of between 0° and 20°. The above finds application in air distillation columns.