石化工艺设计中环保评估方法的对比分析

Contrastive analysis of assessing environmental friendliness methods of petrochemical process Design

传统的石化工艺设计首要考虑的是项目经济可行性,主要采用尾端控制技术解决石化工程过程中所带来的环境污染。随着对社会的可持续发展及环境保护的更加关注,从石化工艺设计的早期阶段起便开始降低和减少各个阶段中所产生的污染物。本文对比了石化工艺设计中现有的18种环保评估方法,分析认为这些多样性的方法在简单与复杂之间有一个很好的平衡点,在石化工艺设计的某一具体阶段可形成既综合又简便的评估方法,同时认为深入研究石化工艺设计过程中的环境评估方法是非常有必要的。

The primary consideration of traditional petrochemical process design is economic feasibility,and the environmental solutions for process facilities are mostly revolved around the concept of end-of-pipe pollution control techniques. However,with the growing concern on sustainability,the design of petrochemical plant can no longer be focused only on the techno-economic criteria,it is more important that assessing environmental friendliness of a process early start from the design stage. This paper compared eighteen existing methods for assessing environmental friendliness. The comparison shows that the diversity of the methods has a good balance between simplicity and complexity,and also find that achieving a comprehensive yet simple method is actually possible by developing such method exclusively for specific stage of the design phase. The review conduct that a deeper study associated with an assessment of petrochemical processes environmental impact in specific stages of process design is highly needed.