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Abstract

Aim of the research was to study sensitivity to disturbances of contact devices of rectification column at different values of mobile control actions and to determine specific of changes in a number of control tray when changing feed input point. Temperature profiles were calculated for rectification column for separation of methyl tret-butyl ether (MTBE) synthesis product at different values of main process disturbance of feed flow rate. It was found that there is the region with the highest and lowest sensitivity within the apparatus, which allows for control over the process in one or few points. The reaction of each tray to disturbances in feed flow rate was studied and a number of control contact device was found based on average sensitivity. It was discovered, that when mobile control approach is used, the control point of the rectification column with the highest sensitivity to disturbances is also mobile. A dependency of control contact device number of the column on value of mobile control action was found, which lies in changes of the column's feed input point.