Distillative separation of methane and carbon dioxide

Details Distillative separation of methane and carbon dioxide Distillative separation of methane and carbon dioxide

F - Mech Eng,Light,Heat,Weapons

25

J

162/109

F25J 3/06 (2006.01) C07C 7/05 (2006.01) F25J 3/02 (2006.01)

Patent

CA 1175339

DISTILLATIVE SEPARATION OF METHANE AND CARBON DIOXIDE Abstract An improvement in a Ryan/Holmes separation of methane from carbon dioxide is disclosed wherein the upper por- tion of a distillation column is operated at temperatures above the triple point of carbon dioxide, i.e.,-70°F, while still effectuating a separation of methane from carbon dioxide. This is achieved by increasing the amount of non-polar liquid agent added to the condenser of the column to an amount sufficient to maintain the condenser and all portions of the column at such temperatures.

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