초록 ▼

A batch polymerization process controller using inferential sensing to determine the integral reaction heat which in turn is used to indicate the degree of polymerization of the reaction mixture batch. The system uses a reaction temperature compared with a desired temperature, and the result is used

A batch polymerization process controller using inferential sensing to determine the integral reaction heat which in turn is used to indicate the degree of polymerization of the reaction mixture batch. The system uses a reaction temperature compared with a desired temperature, and the result is used as a feedback to monitor and control the process. One version of the process controller also uses a feedforward signal which is an integral reaction heat indication from a process model. In another version of the process controller, the integral reaction heat is compared with a desired integral reaction heat, and result is used as another feedback to monitor and control the process. Heat production and reaction temperature profiles may be used, along with the thermokinetic equations to determine the polymerization process and reactor models which are utilized by the process controller to optimize the polymerization process in terms of efficient use of cooling water and desired polymerization of each mixture batch.

대표청구항 ▼

[ We claim:] [1.] A batch polymerization process control device for controlling a batch process in a reactor, comprising:a controller connected to the reactor, for receiving a process temperature feedback signal from said reactor and providing reactor cooling control signals to said reactor; andan i

[ We claim:] [1.] A batch polymerization process control device for controlling a batch process in a reactor, comprising:a controller connected to the reactor, for receiving a process temperature feedback signal from said reactor and providing reactor cooling control signals to said reactor; andan inferential sensor, connected to said reactor and to said controller, for receiving parameter signals from said reactor, providing a reaction model heat feedforward signal to said controller, and receiving reactor cooling control signals from said controller.