F - Mech Eng,Light,Heat,Weapons – 25 – J
Patent
F - Mech Eng,Light,Heat,Weapons
25
J
F25J 3/04 (2006.01)
Patent
CA 2515980
A process and system are used for obtaining a gaseous pressure product by cryogenic separation of air. In the normal operation, charge air is condensed, cooled and fed to a distillation column system; a product fraction is withdrawn-in a liquid condition from the distillation column system, and is introduced into a liquid tank; product liquid is removed from the liquid tank, is pressurized in a pump set in the liquid condition to an increased pressure, is evaporated in an indirect heat exchange with a first heat transfer medium flow, and is withdrawn as a gaseous pressure product. In an emergency operation, product liquid is removed from the liquid tank, is brought in the liquid condition to an increased pressure, is evaporated in an indirect heat exchange with a second heat transfer medium flow, and is withdrawn as a gaseous pressure product. In a bypass operation, the product fraction withdrawn in the liquid condition from the distillation column system is guided past the liquid tank; is brought via the pump set is brought in the liquid condition to an increased pressure; is evaporated in an indirect heat exchange, and is withdrawn as a gaseous pressure product.
Ewert Ulrich
Pompl Gerhard
Kirby Eades Gale Baker
Linde Ag
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