Multivariable control benefits Alberta plant

Kevin Collins Mobil Oil Canada Olds, Alta. Steven Treiber, John Walker Treiber Controls Inc. Toronto Harmatan production [19452 bytes] Installation of multivariable constraint controllers at the Mobil Oil Canada Harmattan gas plant has improved plant profitability by increasing the yield of the most valuable products, reducing energy consumption, and creating a more consistent operation. Mobil Oil installed Optimum Predictive Control (OPC), developed by Treiber Controls, Toronto, on Harmattan's LPG fractionation system (Fig. 1 [19452 bytes]). The Mobil Harmattan facility, built in 1963, is near Olds, Alta., northwest of Calgary. The main process ...

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