is removed from washer 11 a solution consisting of 38 7 ammonia and 61 3 water is recycled to the ammonia rectification column at a rate of 7 335 kg h the temperature at the top of the ammonia rectification column is 46 u00b0 c through lines 15 and 16 inert gas is sent to the carbon dioxide rectification column 18 at a rate of 635 kg h from the bottom of ammonia rectification column 3 a residual liquid phase consisting of 25 4 ammonia 21 0 carbon dioxide and 53 6 water and having a temperature of 131 u00b0 c is sent through line 21 to carbon dioxide rectification column 18 at a rate of 78 027 kg h carbon dioxide rectification column 18 also operating at a pressure of 18 atmospheres absolute receives through line 25 a flow of 73 290 kg h of diluent consisting of water with traces of ammonia and carbon dioxide which liquid when leaving the desorber has a temperature of 206 u00b0 c the liquid gives off part of its heat in the bottom of the carbon dioxide rectification column 18 residual heat being removed in cooler 26 the residual liquid phase leaves desorber 10 at a rate of 108 909 kg h which means that 35 610 kg h of water is discharged whether or not with cooling in cooler 27 this water may be used for instance to absorb ammonia and carbon dioxide the top of the carbon dioxide.