探索年产15万t甲胺DMF装置能量系统优化综合改造

Exploration of Comprehensive Energy System Optimization and Renovation for a 150000 t Annual Capacity Methylamine DMF Plant

针对年产15万t甲胺DMF装置的能量系统进行了深入分析与优化改造。研究发现,原有系统存在蒸汽利用不充分、余热回收不足等问题,导致能源消耗较高。通过实施热量梯级利用、余热回收增强、循环水系统优化及严寒条件下的汽化供暖等措施,实现了能量系统的综合升级。改造后,中低压蒸汽回收量显著提升,精馏余热利用率大幅增加,循环水使用量占比提高,能源系统指标得到全面优化。改造效果表明,甲胺DMF装置的总体能耗降低了20%以上,为化工行业提供了节能减排的有效途径。

This study conducted an in-depth analysis and optimization of the energy system for a 150000t annual capacity methylamine DMF plant.It was found that the original system had issues such as inadequate steam utilization and insufficient waste heat recovery,leading to high energy consumption.By implementing measures such as heat cascading utilization,enhanced waste heat recovery,optimization of the circulating water system,and vaporization heating under severe cold conditions,a comprehensive upgrade of the energy system was achieved.After the renovation,there was a significant increase in the recovery of medium and low-pressure steam,a substantial increase in the utilization rate of distillation waste heat,and an improved proportion of circulating water usage.The energy system indicators were fully optimized.The renovation results indicate that the overall energy consumption of the methylamine DMF plant was reduced by more than 20%,providing an effective path for energy conservation and emission reduction in the chemical industry.