Patent ID: 8078323
Filing Date: 2011-12-13
Classification: B01D,G05B,Y10T

Abstract:
1. A method for process control of distillation columns having a lower column section ( 9 ) and an upper column section ( 10 ) with control of the liquid phase concentration to separate a plurality of components A, B wherein a) the concentration of at least one of the components A, B is measured online at a point ( b) the concentration measured in a) of at least one of the components A or B is taken and used by an online process model in a computer unit ( c) the liquid phase concentration X d) the number of theoretical plates of structured packings or random packings and/or the degree of tray efficacy, are adapted over predetermined time intervals, to the prevailing column conditions, including, but not limited to, the degree of fouling, on the basis of analyses of the end product and introduction of the analytical data into the process model.