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应用流程模拟技术对加氢裂化分馏塔进行了模拟,在此基础上,建立了以航煤量、柴油量、尾油量、加热炉温、塔底蒸汽量、柴油侧线蒸汽量、中段回流量为优化操作变量,以产品总值和能耗为优化目标的加氢裂化分馏塔优化模型。应用改进强度Pareto进化算法(SPEA2)求解多目标模型得到Pareto前沿。基于Pareto前沿各产品量的分布,确定了多产航煤、多产柴油与多产尾油3种方案的优化操作点,并给出了3种产品方案优化操作点的雷达图,此雷达图为产品方案的调整提供了一种可视化手段。本文方法对加氢裂化分馏塔多产品方案的操作优化具有参考作用。
The hydrocracking fractionation tower was simulated by using the flow simulation technology. Based on the simulation results, a series of experiments were carried out to simulate the hydrocracking fractionation tower. In order to optimize the operating variables, the optimization model of hydrocracking fractionation tower with the objective of optimizing the total product value and energy consumption is proposed. Apply Pareto evolutionary algorithm (SPEA2) to solve multi-objective model and get Pareto frontier. Based on the distribution of each Pareto front product volume, the optimized operation points of three schemes of prolific jet fuel, multi-productive diesel oil and multi-productive tail oil were determined and the radar chart of three kinds of product optimization operation points was given. The radar chart For the adjustment of product solutions provide a visual means. The proposed method can be used as a reference for the optimization of multi-product schemes of hydrocracking fractionation tower.