Performance decay due to asset degradation is an important constraint in industrial production and therefore needs to be actively considered. This paper focuses on short-term scheduling for multiproduct batch processes with sequence-dependent degradation and is motivated by a case study in which the sequence of multiple-grade batch runs impacts evolution of fouling. A continuous-time scheduling formulation is proposed to incorporate realistic features of the case study processes. The precedence scheduling concept for the sequential process is employed to model sequences of multiproduct orders and maintenance and is implemented using the general disjunctive programming method. The scheduling formulation is applied to the case study and further analyzed through comprehensive computational tests, which illustrates the efficacy of the proposed formulation.

由于资产退化而导致的性能下降是工业生产中的重要约束，因此需要积极考虑。本文重点关注具有顺序依赖性降解的多产品批生产过程的短期调度，并以一个案例研究为动机，在该案例中，多级批生产的运行顺序会影响结垢的演变。提出了一种连续时间的计划表述方法，以结合案例研究过程的现实特征。顺序过程的优先级调度概念用于对多产品订单和维护的顺序进行建模，并使用一般的分离编程方法来实现。调度公式应用于案例研究，并通过综合计算测试进行进一步分析，