Abstract:

The on-line crude oil blend scheduling is important to support the implementation of advanced control and optimize the refining plan,which is so complicated that some new efficient algorithm is required.In practice, there may be one kind of primal crude oil blended with one of the others in sequence, or some two kinds of crude oil be selected sequentially to be blended, say no primal crude oil.For the case of no primal crude oil, it is hard to match the crude oils because the match is determined by the sequence and the blending ratio together.A novel description and its construction algorithm are presented, then the problem is solved by the optimization scheme based on order for its double-layer structure.By the simulation on the practical data of crude oil distillation, it is shown that the algorithm based on order can improve the computational efficiency significantly.