| 摘要 |
The invention discloses a method for producing a gaseous compressed oxygen product by low-temperature separation of air in a distillation column system. The use of the invented method is especially beneficial in economical respect due to higher productivity, higher purity of the product, lower operation costs and/or capital expenditures. The method according to the invention comprises the use of a distillation column system (50, 51) comprising a high-pressure column (50) and a low-pressure column (51), a main air compressor, a main heat-exchange system (3), a booster compressor (5), a first turbine (11), and a second turbine (22). The method according to the invention is characterised by that the first turbine (11) drives the booster compressor (5), and the second turbine (22) drives a generator (23), or the second turbine (22) drives the booster compressor (5), and the first turbine (11) drives the generator (23). |
