Control of Product Properties by Residence Time Distribution Control in High-Impact Polypropylene Copolymer Process

摘要

The importance of residence time distribution for product property control in continuous high impact polypropylene copolymer processes, is well recognized in the literature [1,2,3]. To expedite new product development and process design, a mechanistic model describing the process was developed and it was shown to be valid against plant data [4]. This validated model was successfully applied for several studies including identification of key process variables, plant expansion, and conceptual process design. These studies have demonstrated that the model-based product development and process design is more reliable and productive than conventional approach of relying only on pilot plant tests. Further modeling effort is underway to support plant operation through the use of dynamic model as "soft sensors" and to support processing and fabrication operation.