Simultaneous Scheduling and Heat Integration of Batch Plants Using Unit-Specific Event Based Modelling

Over the past few decades of sustainable development, energy savings in batch processing facilities has played a vital role. The increasing trend in production of high value and low volume products in food, pharmaceutical industries and fine/specialty chemicals is driving the development of material, energy and water integrated scheduling techniques for multiproduct/multipurpose batch plants. In the present study, a three index Unit Specific Event Based (USEB) model is proposed for the simultaneous short-term scheduling and heat integration of batch plants. A mixed integer linear programming (MILP) model is proposed to handle direct heat integration. The performance of the proposed model is evaluated by considering two benchmark examples.