초록 ▼

A flexible method for characterizing polymer components and the use of the same in general purpose polymer process simulation software has been developed. In this method and software apparatus, polymer molecules are defined in terms of their segments or structural units. In addition, a set of compon

A flexible method for characterizing polymer components and the use of the same in general purpose polymer process simulation software has been developed. In this method and software apparatus, polymer molecules are defined in terms of their segments or structural units. In addition, a set of component attributes is associated with each polymer component. The component attributes are used to track information on polymer molecular structure, chemical composition and product properties, such as molecular weight averages, average copolymer composition, particle size distribution, etc. This methodology is used in a consistent manner by all key elements of simulation software, such as thermo-physical property calculations and polymerization kinetics.

대표청구항 ▼

Digital processor apparatus for simulating polymer processes comprising: input means for enabling user definition of a desired polymer process formed of a multiplicity of streams and elements, including at least one polymer component; a data assembly coupled to the input means for holding data of th

Digital processor apparatus for simulating polymer processes comprising: input means for enabling user definition of a desired polymer process formed of a multiplicity of streams and elements, including at least one polymer component; a data assembly coupled to the input means for holding data of the desired polymer process, for each polymer component the data assembly representing the polymer component as a collection of segments and a set of attributes, the collection of segments and set of attributes defining the polymer component, the data assembly utilizing an attribute set table which provides (i) polymer characteristics in a standardized manner from one polymer component to another, and (ii) distribution function moment information for describing polymer properties, such that said table specifies one or multiple polymer components to support simulation of a variety of polymer processes; and processor means for simulating the desired polymer process by mathematically modelling stream flow and element operations of the desired polymer process, the mathematical modelling including calculating polymer physical properties and attribute values of the polymer components, based on said moments of distribution functions, said calculating using the data stored in the data assembly according to the attribute set table.