Patent ID: 10308590

Abstract:
Systems and methods for producing a colorless triethanolamine product stream with a degree of purity of greater than or equal to 99% by weight from the triethanolamine distillation columns in a non-reactive distillation process. The desired triethanolamine product stream can be obtained by increasing the bottom stream flow rate at the diethanolamine column by 80 kilograms per hour, and reducing the triethanolamine product stream flow rate by 500 kilograms per hour. This process can result in a reduction of the temperature at the triethanolamine column by up to 23.5 degrees. The reduced temperature can result in a triethanolamine product stream with an APHA color of 0 to less than 50, for example, 0 to 40, for example, 0 to 30, for example 0 to 20, and for example, 0 to 10.