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An optimisation-based framework for the conceptual design of reaction-separation processes

机译：基于优化的反应分离过程概念设计框架

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摘要

Prior to detailed process design, it is vital to first generate a good flowsheet that meets particular objective. This is particularly the case in bio-based materials and products, where, given a range of chemistries, the synthesis problem is not about the best way to make a particular product but rather the best way to convert a specific feedstock. In order to do so, an optimisation-based framework, which can be used to identify the optimal configuration of a process network that consists of both reactions and separation systems to achieve maximum economic potential, is presented in this paper. A process superstructure, which includes the concept of master reaction stages and subsidiary separation stages, is introduced to facilitate the theory. The problem is formulated as a generalised mixed integer linear programming (MILP) model which accounts for the simultaneous selection of products and identification of the process configuration. The solution of the optimisation problem includes the best possible economic performance, identification of active reactions, reaction ordering and separation sequences along with the corresponding flowsheet of the optimal process. The economic criterion takes account of raw materials costs, product values and separation related costs. Itvo bio-based chemical case studies are presented to illustrate the applicability of the proposed methodology. (C) 2016 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：在进行详细的过程设计之前，至关重要的是首先生成一个满足特定目标的好的流程图。在生物基材料和产品中尤其如此，在给定一系列化学物质的情况下，合成问题不是关于制造特定产品的最佳方法，而是关于转换特定原料的最佳方法。为此，本文提出了一种基于优化的框架，该框架可用于确定由反应和分离系统组成的过程网络的最佳配置，以实现最大的经济潜力。引入了过程上层结构，其中包括主反应阶段和辅助分离阶段的概念，以简化该理论。该问题被公式化为广义混合整数线性规划（MILP）模型，该模型考虑了产品的同时选择和过程配置的标识。优化问题的解决方案包括可能的最佳经济性能，活性反应的识别，反应顺序和分离顺序以及最佳过程的相应流程图。经济标准考虑了原材料成本，产品价值和与分离有关的成本。提出了基于生物的Itvo生物化学案例研究，以说明所提出方法的适用性。 （C）2016年化学工程师学会。由Elsevier B.V.发布。保留所有权利。

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