Method for separating air by cryogenic distillation and...

Details Method for separating air by cryogenic distillation and... Method for separating air by cryogenic distillation and...

2007-05-22

2007-05-22

Doerrler, William C. (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

C062S646000, C062S903000

Reexamination Certificate

active

10492758

ABSTRACT:
A method and apparatus for separating air by cryogenic distillation. The energy of an air separation installation is increased by reducing the size of the exchangers, and therefore increasing the head losses and the temperature differences in the exchange line, and increasing the temperature difference at the main vaporizer. The size of the distillation column is reduced by minimizing the number of theoretical trays and the number of sections of packing or trays. The size of the refrigerating turbine is also reduced by increasing its intake temperature in order to reduce the output.

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