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- W61300340 abstract "A two-program dynamic optimization package has been developed to maintain FCC units consistently near the optimum set of constraints. The first program (SURVEILLANCE) performs real-time data gathering and reduction, scans operating variables on the process unit, alarms the operator when certain undesirable conditions exist, and furnishes the necessary data to the multivariable optimizing controller (OPTCON), the second program, which consists of dynamic process models and operating strategies similar to those of a human operator. The system monitors the unit to maintain safe conditions, directly senses uncontrolled capacity changes, and takes advantage of available capacity by manipulation of key throughput and conversion variables. A recent application of this system at a Texas Panhandle refinery gave an estimated $620,000/yr increase in product value on a 30,000 bbl/day FCC unit, due to cracking temperature optimization (an average 2/sup 0/F higher than in conventional units) and a 720 bbl/day increase in feed rate. Diagram and graphs." @default.
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- W61300340 date "1977-01-01" @default.
- W61300340 modified "2023-09-26" @default.
- W61300340 title "Dynamic optimization of fluid catalytic cracking (FCC) units" @default.
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