Olefins production plants are large-scale plants, in most of which gaseous and liquid hydrocarbons are cracked to produce light olefins. The complex and large-scale nature of these plants makes it an utmost necessity to design and operate them with the use of computer-aided optimization and control methods. This review paper provides an overview of the reported research works on the optimization and control of different parts of olefin plants. The main research studies are discussed in two main sections: Optimal Design and Process Operation and Control. In the Optimal Design section, the state of the optimal design of cracking furnace systems, cold-end separation systems, and separation columns have been studied. Then in the Process Operation and Control section, the control of cracking furnaces, the control of cold-end separation systems, real-time optimization of olefin plants, cyclic scheduling of cracking furnace systems, production planning of olefin plants, and finally, start-up and shutdown operations in these plants have been extensively reviewed. This paper is a continuation of the three review articles published previously entitled Thermal and Catalytic Cracking of Hydrocarbons for the Production of Light Olefins, the last of which focused on process modeling and simulation.

中文翻译：

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烃的热裂解以生产轻质烯烃；最佳过程设计，操作和控制的回顾

烯烃生产工厂是大规模的工厂，其中大部分气态和液态烃裂化以生产轻质烯烃。这些工厂的复杂性和大规模性质使其非常有必要使用计算机辅助的优化和控制方法来设计和操作它们。该综述文件概述了已报道的有关烯烃工厂不同部分的优化和控制的研究工作。主要研究内容分为以下两个主要部分：最佳设计和过程操作与控制。在“最佳设计”部分中，研究了裂解炉系统，冷端分离系统和分离塔的最佳设计状态。然后在“过程操作和控制”部分中，控制裂解炉，控制冷端分离系统，烯烃工厂的实时优化，裂化炉系统的循环调度，烯烃工厂的生产计划，最后，对这些工厂的启动和关闭操作进行了广泛的审查。本文是先前发表的三篇评论文章的延续，该三篇评论文章的标题为“用于轻烯烃生产的烃类的热裂解和催化裂解”，最后一篇着重于过程建模和仿真。