Patent ID: 6662594
Filing Date: 2003-12-16
Classification: F25J,Y10S

Abstract:
An apparatus for producing gaseous oxygen under elevated pressure comprising:a distillation column system having a high-pressure column (106) and a low-pressure column (107), the low-pressure column (107) being located above the high-pressure column (106); a side condenser (102) having a liquefaction space and a vaporization space and which is located below the bottom of the low-pressure column (107); a feed air line (1, 2, 3, 4), which is connected to the high-pressure column (106); at least one transition line (18-19; 11-14-15) for introducing a fraction from the high-pressure column (106) into the low-pressure column (107); a liquid line (28) for removing a liquid oxygen fraction from the low-pressure column (107), the liquid line (28) leading into the vaporization space of the side condenser (102); and a product line (29, 30), for removing gaseous oxygen under elevated pressure, which is connected to the vaporization space of the said side condenser (102); wherein the side condenser (102) is located below the high-pressure column (106), and wherein the low-pressure column (107), the high-pressure column (106) and the side condenser (102) are located below one another.