Distillation method and column

Details Distillation method and column Distillation method and column

B - Operations, Transporting

01

D

B01D 3/26 (2006.01) B01J 19/32 (2006.01) F25J 3/04 (2006.01)

Patent

CA 2304841

A distillation method and column in which a gaseous mixture is introduced into a bottom region of a packed column having a plurality packed beds using structured packing. The gaseous mixture comprises higher and lower volatility components The packed column is operated so that the higher and lower volatility components have a relative volatility within the column in a range of between 1.05 and 1.8. In order to alleviate the effect of liquid maldistribution in the lowermost bed of such a column, the lowermost bed is sized to be between about 50% and about 80% of the height of the next overlying bed, with 80% being preferred and the total height of the packing within the column is at least about six meters.

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