COMMUNICATION BETWEEN CALORIMETRIC EXPERIMENT AND CONTINUOUS DATA EVALUATION DURING THE INCOMPLETE REACTION RUN

The kinetic control of exothermic reactions plays an important role in chemical safety technology. Predictions of thermal explosions by runa way, e.g. redox reactions, poly reactions, and decompositions, are req uired in case of simple as well as of complex reactions. Activation pa rameters of chemical reactions are often stressed by systematic errors which are caused by failures in accuracy of measurement and calibrati on. The influence of systematic errors for some selected reactions has been investigated by the software package TA-kin. The coupling betwee n continuous data evaluation software and the precision calorimeter AC TRON 5.0, including a safety scenario equipment, was established to te st the validity of calculated runaway predictions under practical cond itions. Measured data are applied for kinetic evaluations by nonlinear optimization methods in real time. In this way, the experimental inve stigations of reaction systems become possible beyond the point of no return without any danger for the laboratory. (C) 1998 Elsevier Scienc e B.V.