초록 ▼

In this plant (1), a common thermal insulation wall (14) surrounds first and second distillation units (2, 3, 4, 5). A first product stream is removed from the first unit and a second stream is removed from the second unit, the first and second streams are mixed without having previously been compre

In this plant (1), a common thermal insulation wall (14) surrounds first and second distillation units (2, 3, 4, 5). A first product stream is removed from the first unit and a second stream is removed from the second unit, the first and second streams are mixed without having previously been compressed or expanded with the production of external work.

대표청구항 ▼

[ What is claimed is:] [1.] Air distillation plant comprising a plurality of cryogenic distillation units and thermal insulation means for insulating the distillation units; an air feed conduit for supplying air to at least one distillation unit; the thermal insulation means comprising a common ther

[ What is claimed is:] [1.] Air distillation plant comprising a plurality of cryogenic distillation units and thermal insulation means for insulating the distillation units; an air feed conduit for supplying air to at least one distillation unit; the thermal insulation means comprising a common thermal insulation wall surrounding at least first and second distillation units; the first and second distillation units comprising low-pressure columns; first and second conduits for removing a product stream from the first and second distillation units respectively; means for forming a single product stream from the streams in the first and second conduits, wherein there are no expansion means producing external work or compressors provided in the first and second conduits; at least one medium-pressure column connected to the air feed conduit and equipped with a head vaporizer/condenser; the low-pressure columns being connected in parallel to the vaporizer/condenser; the common thermal insulation wall also surrounding the medium pressure column and the vaporizer/condenser.