초록 ▼

In a process integration, particularly with a blast furnace, low grade fuel gas produced by the furnace is compressed and moisturized. The moisturized fuel is burnt using a major part of a compressed air stream to support its combustion. The resulting combustion gases are then expanded with the gene

In a process integration, particularly with a blast furnace, low grade fuel gas produced by the furnace is compressed and moisturized. The moisturized fuel is burnt using a major part of a compressed air stream to support its combustion. The resulting combustion gases are then expanded with the generation of power. The minor part of the air is separated into oxygen and nitrogen. Oxygen is used in the blast furnace.

대표청구항 ▼

An integrated method of separating air and generating power, comprising: a) compressing air without removing at least part of the heat of compression thereby generated; b) dividing the compressed air flow into a major stream and a minor stream; c) cooling the compressed minor air stream by heat exch

An integrated method of separating air and generating power, comprising: a) compressing air without removing at least part of the heat of compression thereby generated; b) dividing the compressed air flow into a major stream and a minor stream; c) cooling the compressed minor air stream by heat exchange with a pressurized stream of water; d) separating the minor air stream into oxygen and nitrogen; e) moisturizing a stream of compressed low grade fuel gas by introducing it into said pressurized stream of water downstream of the heat exchange between the stream of water and the minor air stream; f) burning said stream of compressed low grade fuel gas utilizing said major air stream to support its combustion; and g) expanding with the performance of external work the combustion gases from the burning of the gaseous fuel stream, the work performed comprising the generation of said power.