Patent ID: 8406928
Filing Date: 2013-03-26
Classification: B01J,C08F,F28D

Abstract:
1. A method for designing a temperature control system, the method comprising the acts of: constructing a first model of an interaction of a temperature control system and a polyethylene loop slurry reactor using simulation software disposed on a computing device; simulating the interaction of the temperature control system and the polyethylene loop slurry reactor at two or more steady state operating conditions in a range of interest using the first model and the simulation software to generate first simulated responses; calculating a Cv value for a temperature control valve regulating flow of a cooling fluid through cooling jackets of the polyethylene loop slurry reactor at each of the two or more steady state operating conditions based on the first simulated responses; generating a first Cv curve by plotting each of the calculated Cv values on a first plot; modifying the first model using the first Cv curve to construct a second model; simulating the interaction of the temperature control system and the polyethylene loop slurry reactor at the two or more reactor thermal steady state operating conditions in the range of interest using the second model and the simulation software to generate second simulated responses; comparing actual data representative of the interaction of the temperature control system and the polyethylene loop slurry reactor with the second simulated responses; and modifying the second model based on the comparison of the actual data with the second simulated responses to construct a validated model such that one or more components of the temperature control system are configured to maintain a temperature of the polyethylene loop slurry reactor within a desired operating range when using the validated model.