Plant for producing high pressure oxygen by air distillation
AssigneeL'Air Liquide - Societe Anonyme A'Directoire et Conseil de Surveillance pour l'Etude et l'Explotation des Procedes Georges Claude
InventorsGiovanni Massimo, Alain Guillard
Life of this patent
Estimating the term…
Abstract
This plant comprises N (N>1) air distillation units (1) in parallel, each one of which comprises a main air compressor (3) driven by a steam turbine (4); an air distillation apparatus (8) producing liquid oxygen and/or liquid nitrogen; at least one pump (9) for pumping liquid oxygen and/or liquid nitrogen to a high production pressure; and a cycle compressor (10) adapted to compress part of a cycle fluid. Each cycle compressor (10) is driven by an electric motor (11), and an (N+1)th steam turbine (12) drives an alternator (13) supplying the electric motors (11) with electric current. Application to supplying units (2) for producing synthetic hydrocarbons with high-pressure oxygen.
Claims13
A plant for producing high-pressure oxygen by air distillation, aracterized in that it comprises N (N>1) air distillation units (1) in parallel, each one of which comprises:
- a main air compressor (3) adapted to compress the atmospheric air to be distilled;
- a steam turbine (4) for driving the main compressor;
- means (5) for precooling air;
- means (6) for purifying air of water and of CO2;
- a main heat exchange line (7) adapted to cool the compressed air down to a temperature allowing it to be distilled;
- an air distillation apparatus (8) producing liquid oxygen and/or liquid nitrogen;
- at least one pump (9) for pumping the liquid oxygen and/or the nitrogen to at least one high production pressure;
- and a cycle compressor (10) adapted to compress a cycle fluid to a high pressure allowing the pumped liquid nitrogen and/or liquid oxygen to vaporize, wherein each cycle compressor (10) is driven by an electric motor (11), and the plant comprises an (N+1)th steam turbine (12) which drives an alternator (13), wherein the alternator (13) supplies the electric motors (11) with electric current.
A plant for producing high-pressure oxygen by air distillation, wherein the plant includes at least one unit (2) for producing synthetic hydrocarbons, characterized in that it comprises N (N>1) air distillation units (1) in parallel, each one of which comprises:
- a main air compressor (3) adapted to compress the atmospheric air to be distilled;
- a steam turbine (4) for driving the main compressor;
- means (5) for precooling air;
- means (6) for purifying air of water and of CO2;
- a main heat exchange line (7) adapted to cool the compressed air down to a temperature allowing it to be distilled;
- an air distillation apparatus (8) producing liquid oxygen and/or liquid nitrogen;
- at least one pump (9) for pumping the liquid oxygen and/or the nitrogen to at least one high production pressure;
- and a cycle compressor (10) adapted to compress a cycle fluid to a high pressure allowing the pumped liquid nitrogen and/or liquid oxygen to vaporize, wherein each cycle compressor (10) is driven by an electric motor (11), and the plant comprises an (N+1)th steam turbine (12) which drives an alternator (13), wherein the alternator (13) supplies the electric motors (11) with electric current.
Dependencies are inferred from the claim text.