“双碳”背景下炼油装置能效评价方法研究

STUDY ON ENERGY EFFICIENCY EVALUATION METHOD OF OIL REFINING UNIT UNDER“DOUBLE CARBON”BACKGROUND

国内外炼油厂现有的能效评价方法主要适用于企业间整体用能水平对比,为适应“双碳”目标要求,急需改进。从用能机理出发,结合“三环节”理论的用能分析,以流程模拟技术为依托,通过装置和系统的关键环节用能参数来评价炼油厂能耗水平,提出了一种新型的能效评价方法。用该方法评价炼油厂常减压蒸馏装置能效水平的结果显示,该方法可以指导炼油装置的节能潜力分析和节能方案优化,使单套装置能耗更低,为实现“双碳”目标助力。

The existing energy efficiency evaluation methods used in refineries at domestic and overseas are mainly applicable to the comparison of the overall energy consumption level between enterprises.Based on the energy-using mechanism,the energy-using analysis of the“Three-link”theory,and the process simulation technology,the energy-using parameters of the key links of the unit and system were used to evaluate the energy consumption level in the refinery,and a new energy efficiency evaluation method was also proposed.The results of evaluating the energy efficiency level of atmospheric and vacuum distillation units show that this method can guide the analysis of energy-saving potential and optimization of the energy-saving scheme in the refinery units,which can make the single unit realize better energy-saving,and assist the realization of“double carbon”goal.