摘要
结合某企业一套高压加氢裂化装置用能现状,运用Aspen Plus流程模拟软件建立模型,利用夹点技术理论分析装置,发现不合理用能主要集中在循环氢加热炉。通过将热物流分流和调整部分换热器等措施,提高循环氢进加热炉的换热终温。优化后,循环氢加热炉负荷降低,节省燃料气用量15.22 MW。经对装置中低温热统计整理,用二类热泵产蒸汽供脱硫及溶剂再生系统胺液再生塔利用,可节省管网蒸汽2.45 t/h。
Based on pinch analysis on a high pressure hydrocracking unit and Aspen Plus process simulation modeling, it was found that the improper energy consumption pointed to the furnace of circulating hydrogen. In view of these improper consumption and economic factors, several measures were taken to improve the terminal temperature of circulating hydrogen, such as splitting hot flow and adjusting exchangers. After the optimization, the circulating hydrogen furnace load was reduced and fuel gas consumption was cut by 15.22 MW. In addition, second absorption heat pump was used to produce Low Pressure steam for amine liquid regenerator in desulfurization and solvent regeneration,which saved 2.45 t/h Low Pressure steam in the steam network system.
出处
《石油石化绿色低碳》
2016年第5期21-30,38,共11页
Green Petroleum & Petrochemicals
