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    Polyolefin process monitoring and control
    19.
    发明授权
    Polyolefin process monitoring and control 有权

    公开(公告)号：US11453733B2

    公开(公告)日：2022-09-27

    申请号：US16386794

    申请日：2019-04-17

    Applicant: Chevron Phillips Chemical Company LP

    Inventor： Paul J. DesLauriers ,  Jeff S. Fodor ,  Eric J. Netemeyer ,  Qing Yang

    IPC: C08F210/16 ,  C08F2/00

    Abstract: Methods of controlling olefin polymerization reactor systems are provided herein. In some aspects, the methods include a) selecting n input variables, each input variable corresponding to a process condition for an olefin polymerization process; b) identifying m response variables, each response variable corresponding to a measurable polymer property; c) adjusting one of more of the n input variables in a plurality of polymerization reactions using the olefin polymerization reactor system, to provide a plurality of olefin polymers and measuring each of the m response variables as a function of the input variables for each olefin polymer; d) analyzing the change in each of the response variables as a function of the input variables to determine the coefficients; e) calculating a Response Surface Model (RSM) using general equations for each response variable determined in step d) to correlate any combination of the n input variables with one or more of m response variables; f) applying n selected input variables to the calculated Response Surface Model (RSM) to predict one or more of m target response variables, each target response variable corresponding to a measurable polymer property; and g) using the n selected input variables Is1 to Isn to operate the olefin polymerization reactor system and provide a polyolefin product.

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