A method for producing an ethanolamine product stream in a non-reactive distillation column, comprising: mixing an ammonia solution comprising 30% to 40% by weight ammonia with ethylene oxide in a reactor to create a resultant product stream, wherein said resultant product stream comprises ethanolamines, unreacted ammonia and water; removing 30% to 50% by weight of the unreacted ammonia and 50% to 70% by weight of water from the resultant product stream at an ammonia stripper to create a stripped product stream, wherein the stripped product stream comprises ethanolamines and 30% to 50% by weight of water, and the ammonia stripper operates at a pressure of 1 to 5 barg; operating a vacuum drying column at a pressure from 260 mbar to 280 mbar, a temperature at top stages of the vacuum drying column from 55°C to 75°C, a temperature at bottom stages of the vacuum drying column from 140°C to 160°C, and at adjusted processing conditions, wherein said processing conditions are: the stripped product stream flow rate, reflux rate at the vacuum drying column, condenser heat duty at the vacuum drying column, reboiler heat duty at the vacuum drying column, bottom rate at the vacuum drying column and a combination comprising at least one of the foregoing, and where said adjusted processing conditions are 5% to 20% above a base case value of the selected processing conditions, wherein at base case value the stripped product stream flow rate is 14,798 kg/hr, the reflux rate is 1,600 kg/hr, the condenser heat duty is 8,860 kiloWatts, a reboiler heat duty is 7,483 kiloWatts, and a bottom rate of 14,798 kg/hr; transferring the stripped product stream to a stage of the vacuum drying column to create a dehydrated product stream; removing a portion of residual water from the stripped product stream at the vacuum drying column to create a dehydrated product stream, wherein said dehydrated product stream comprises ethanolamines and 0.01% to 0.03% by weight of water. mixing an ammonia solution comprising 30% to 40% by weight ammonia with ethylene oxide in a reactor to create a resultant product stream, wherein said resultant product stream comprises ethanolamines, unreacted ammonia and water; removing 30% to 50% by weight of the unreacted ammonia and 50% to 70% by weight of water from the resultant product stream at an ammonia stripper to create a stripped product stream, wherein the stripped product stream comprises ethanolamines and 30% to 50% by weight of water, and the ammonia stripper operates at a pressure of 1 to 5 barg; operating a vacuum drying column at a pressure from 260 mbar to 280 mbar, a temperature at top stages of the vacuum drying column from 55°C to 75°C, a temperature at bottom stages of the vacuum drying column from 140°C to 160°C, and at adjusted processing conditions, wherein said processing conditions are: the stripped product stream flow rate, reflux rate at the vacuum drying column, condenser heat duty at the vacuum drying column, reboiler heat duty at the vacuum drying column, bottom rate at the vacuum drying column and a combination comprising at least one of the foregoing, and where said adjusted processing conditions are 5% to 20% above a base case value of the selected processing conditions, wherein at base case value the stripped product stream flow rate is 14,798 kg/hr, the reflux rate is 1,600 kg/hr, the condenser heat duty is 8,860 kiloWatts, a reboiler heat duty is 7,483 kiloWatts, and a bottom rate of 14,798 kg/hr; transferring the stripped product stream to a stage of the vacuum drying column to create a dehydrated product stream; removing a portion of residual water from the stripped product stream at the vacuum drying column to create a dehydrated product stream, wherein said dehydrated product stream comprises ethanolamines and 0.01% to 0.03% by weight of water. <EOS>