Patent ID: 6195010
Filing Date: 2001-02-27
Classification: B01J,G01K

Abstract:
An online early warning detection system of runaway initiation in a batch chemical reactor, said system comprising:means (12) for measuring the temperature in one of the reactor and its jacket in different regions and at different instants;means (3 to 5) for deducing therefrom criteria for dangerous runaway conditions, said deducing means (3 to 5) including means (5) for defining the area evolution of the system in the reconstructed phase space according to the formula ##EQU6##wherein area signifies the area of the parallelogram given by points P1, P2, P3 at the instant t and t+.DELTA.t respectively; andmeans (8, 9) for launching an alarm if div[F(t)]>0.