Synthesis of ternary distillation process structures featuring minimum utility cost using the IDEAS approach
Synthesis of ternary distillation process structures featuring minimum utility cost using the IDEAS approach
复制标题
使用 IDEAS 方法合成具有最低公用事业成本的三元蒸馏工艺结构
DOI：
10.1002/aic.16023
复制
发表时间：
2018
期刊：
影响因子：
3.7
通讯作者：
Shinji Hasebe
中科院分区：
文献类型：
--
作者：
Hiroshi Takase;Shinji Hasebe
提出了一种基于无限维状态空间（IDEAS）方法的三元精馏过程结构综合方法。所建议的合成程序包括两个步骤。在第一步，效用成本是最小的。由于目标函数中没有包含流的数量，第一步的结果在模块之间包含了许多微小的流。然后，在第二步，执行过程简化的进化过程。在这一步中，流率的加权和递归地最小化，同时在每次迭代中更新权重。最后根据第二步简化的结果确定实际的工艺结构。该合成方法应用于苯、甲苯和邻二甲苯三元混合物的分离问题。结果表明，所提出的方法提供了一种与Petlyuk色谱柱非常相似的液体成分剖面。©2017美国化学工程学会化工学报，64:1285-1294,2018
A synthesis method for ternary distillation process structures is proposed on the basis of the infinite‐dimensional state‐space (IDEAS) approach. The proposed synthesis procedure consists of two steps. At the first step, the utility cost is minimized. The result of the first step contains many tiny flows among the modules because the number of flows is not included in the objective function. Then, at the second step, an evolutionary procedure for process simplification is executed. In this step, the weighted sum of flow rates is minimized recursively while updating the weights at each iteration. The practical process structure is finally determined from the result of the second simplification step. The developed synthesis procedure was applied to the separation problem of a ternary mixture consisting of benzene, toluene, and o‐xylene. It demonstrated that the proposed procedure provides a process whose liquid composition profile is quite similar to that of a Petlyuk column. © 2017 American Institute of Chemical EngineersAIChE J, 64: 1285–1294, 2018