PROCESS AND EQUIPMENT FOR THE REGULATION OF THE POLYMERISATION OF THE ETHYLENE

摘要

A control system for the plymersn. of ethylene subdivides the parameters of the charge to tubular reactor and energies into two components. The desired values for the first are determined depending on temp. profile data of the reactor and of analytical and measured results of both components by means of a constantly adjusted model. The desired values for the second component are determined depending on the analytical and measured results of the reaction throughput, and the reactor temp. profile by means of a second model.