Maximization of profit through optimal selection of inventory levels and production rates in pulp and paper mills

A new methodology named PARIS (Production Analysis for Rate and Inventories Strategies) can help mill managers make successful decisions in working toward the best possible operation of the mill. The objective is to maximize profits through optimal management of inventories and optimal selection of production rates. A mill-wide detailed model is first developed. Mass and energy balances, system constraints, storage capacites, and other parameters are taken into account. Optimization techniques are utilized to minimize the aconomical impact of scheduled shutdowns and daily disturbances that arise from unpredictable events such as machine breakdowns and changes in production demands.