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Linear Programming Applied to Production Planning and Operation of a Chemical Process

N. J. Royce
Operational Research Quarterly (1970-1977)
Vol. 21, No. 1 (Mar., 1970), pp. 61-80
DOI: 10.2307/3007719
Stable URL: http://www.jstor.org/stable/3007719
Page Count: 20
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Linear Programming Applied to Production Planning and Operation of a Chemical Process
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Abstract

To employ linear programming in production-planning problems in the chemical industry it is often necessary to make a linear model of plant which seems highly non-linear. An approach with some generality is described that reasonably combines accuracy and economy. Next, the hierarchy of planning levels around a chemical plant is considered from investment planning through to process operation. This highlights difficulties, inherent in on-line computer optimizing proposals, that are often played down. In short, the considerations which have most influence on determining optimum operating conditions are shown to have little to do with the instantaneous state of the chemical process. Given that perfection is unattainable it is argued that in some cases the best way to run chemical plant is infrequent off-line optimization leading to plans whose feasibility is maintained in the short term with very little calculation if the right sort of linear process model exists.

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