Apparatus and process for producing gaseous oxygen under elevated pressure
AssigneeLinde Aktiengesellschaft
InventorsAugustin Rampp, Michael Lauter
Life of this patent
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Abstract
An apparatus and process for producing gaseous oxygen under elevated pressure utilize a distillation column system which has a high-pressure column (106), a low-pressure column (107) located above the high-pressure column (106), and a side condenser (102), which has a liquefaction space and a vaporization space, used to vaporize a liquid oxygen fraction from the low-pressure column (107). The side condenser (102) is located below the high-pressure column (106).
Claims19
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.
A process for producing gaseous oxygen under elevated pressure in 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), said process comprising:
- introducing a feed gas (1, 2, 3, 4) into the high-pressure column (106);
- introducing at least one fraction (18-19;
- 11-14-15) from the high-pressure column (106) into the low-pressure column (107);
- introducing a liquid oxygen fraction from the low-pressure column (107) into a vaporization space of a side condenser (102), said side condenser having a liquefaction space and a vaporization space and is located below the bottom of the low-pressure column (107);
- and
- withdrawing gaseous oxygen (29, 30) from the vaporization space of the 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.
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 feed air line (1, 2, 3, 4) is in fluid communication with the main heat exchanger (105) wherein feed air is cooled by heat exchange with product streams, and the main heat exchanger (105) is located below the high-pressure column (106).
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 a gas product line (21-22, 23-24-25) for removing a gaseous product from the low-pressure column (107), is connected to a supercooling countercurrent heat exchanger (104) located between the high-pressure column (106) and the side condenser (102), and the transition line (18-19;
- 11-14-15) is in fluid communication with the supercooling countercurrent heat exchanger (104).
A process for producing gaseous oxygen under elevated pressure in 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), said process comprising:
- introducing a feed gas (1, 2, 3, 4) into the high-pressure column (106);
- introducing at least one fraction (18-19;
- 11-14-15) from the high-pressure column (106) into the low-pressure column (107);
- introducing a liquid oxygen fraction from the low-pressure column (107) into a vaporization space of a side condenser (102), said side condenser having a liquefaction space and a vaporization space and is located below the bottom of the low-pressure column (107);
- and
- withdrawing gaseous oxygen (29, 30) from the vaporization space of the side condenser (102),
- wherein the side condenser (102) is located below the high-pressure column (106), and
- wherein the feed air (1) is cooled in a main heat exchanger (105) against product flows (21, 23, 26), and the main heat exchanger (105) is located below the high-pressure column (106).
A process for producing gaseous oxygen under elevated pressure in 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), said process comprising:
- introducing a feed gas (1, 2, 3, 4) into the high-pressure column (106);
- introducing at least one fraction (18-19;
- 11-14-15) from the high-pressure column (106) into the low-pressure column (107);
- introducing a liquid oxygen fraction from the low-pressure column (107) into a vaporization space of a side condenser (102), said side condenser having a liquefaction space and a vaporization space and is located below the bottom of the low-pressure column (107);
- and
- withdrawing gaseous oxygen (29, 30) from the vaporization space of the side condenser (102),
- wherein the side condenser (102) is located below the high-pressure column (106), and
- wherein at least one gaseous product flow (21, 23) is withdrawn from the low-pressure column (107) and is heated in a supercooling countercurrent heat exchanger (104) against the fraction (18-19, 11-14-15) from the high-pressure column (106), the supercooling countercurrent heat exchanger (104) being located between the high-pressure column (106) and the side condenser (102).
Dependencies are inferred from the claim text.