Application of multivariate predictive control in heterogeneous dewaxing plant
The heterogeneous dewaxing process and control status of Lu'an Company were introduced.In view of the problem that the conventional PID control effect was not ideal for the material balance of each unit of coal-based oil,the multivariate predictive control(MPC)technology was used for the modification.Modeling and controller design were carried out combined with the practical experience of the process personnel,to achieve the whole-process fine control of heterogeneous dewaxing plant.The industrial application effect showed that after the MPC system was put into use,it could stabilize the outlet temperature of the heating furnace,optimize the temperature distribution in the tower and stably control the liquid level of key equipment,reduce the standard deviation of key controlled process parameters by more than 35%,and the output and quality of each basic oil had been effectively improved.
multivariate predictive control(MPC)heterogeneous dewaxing plantoutlet temperature of heating furnacetower top temperatureequipment liquid level
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维普
