Barriers are used in various forms to assure the safety of chemical plants. A deep understanding of the literature related to safety barriers is essential to tackle the challenges in improving their design and management. This paper first provides an overview of the history of the development of the safety barrier concept. Subsequently, this paper elaborates a systematic review of the definition, classification, evaluation, performance assessment, and management of safety barriers in the chemical process industries. Based on the literature review, this study proposes a practical classification of safety barriers benefiting the identification of performance indicators and the collection of indicator-related data for safety barriers. The safety barrier functions are extended and illustrated by involving the resilience concept. Performance assessment criteria are proposed corresponding to the adaptability and recoverability of the safety barriers. Finally, the management of safety barriers is discussed. The roadmap for future studies to develop integrated management of safety and security barriers to ensure the resilience of chemical plants is suggested.

屏障以各种形式使用，以确保化工厂的安全。深入了解与安全屏障相关的文献对于解决改进其设计和管理的挑战至关重要。本文首先概述了安全屏障概念的发展历史。随后，本文详细阐述了化学加工工业安全屏障的定义、分类、评估、性能评估和管理的系统综述。基于文献综述，本研究提出了一种实用的安全屏障分类，有利于性能指标的识别和安全屏障指标相关数据的收集。安全屏障功能通过涉及弹性概念得到扩展和说明。提出了与安全栅的适应性和可恢复性相对应的性能评估标准。最后，讨论了安全屏障的管理。建议了未来研究的路线图，以开发安全和安保障碍的综合管理，以确保化工厂的恢复能力。