×

System and method for improved flow data reconciliation

  • US 5,504,692 A
  • Filed: 06/15/1992
  • Issued: 04/02/1996
  • Est. Priority Date: 06/15/1992
  • Status: Expired due to Fees
First Claim
Patent Images

1. A computer-based method of processing flow signals, said method employing data reconciliation, comprising the steps of:

  • (1) operating a process comprising one or more units and two or more streams to produce a product;

    (2) measuring flow rates and temperatures of two or more of said streams to produce raw flow signals;

    (3) predicting, using dynamic simulation, predicted flow signals for one or more of said streams not measured in step (2);

    (4) constructing a complete mass balance around at least one of said units, by using said raw flow signals and said predicted flow signals;

    (5) correcting one or more of said raw flow signals and/or predicted flow signals by using said complete mass balance to produce mass corrected flow signals; and

    (6) directly or indirectly changing the state of a final control element of said process in response to said mass corrected flow signals in accordance with an operating objective.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×