METHOD FOR OPERATING A GAS-PHASE REACTOR AT OR NEAR MAXIMUM PRODUCTION RATES WHILE CONTROLLING POLYMER STICKINESS

摘要

Embodiments of the present invention relate to operating at least one gas-phase reactorat or near maximum production rates and to measuring and controlling polymerstickiness in a gas phase reactor polymerization. In particular, embodiments relateto monitoring acoustic emissions in a reactor during gas phase polymerization todetermine the onset of reactor stickiness and possibly discontinuity events suchas chunking and sheeting resulting from that stickiness. Embodiments also relateto monitoring acoustic emissions to determine the need for effective controlof parameters that minimize reactor stickiness and thereby preventing discontinuityevents. The emissions are processed by arithmetic averaging.