丁二烯装置萃取系统运行周期缩短原因及措施

摘要

As extractive distillation tower tray was jammed in butadiene production, and with short operation cycle, the economic benefits of the unit was seriously restricted. In combination with the mechanism of the generation of the polymer like popcorn, and the analysis of the composition of polymer, the reasons for the polymer of the unit were presented. It was put forward that took the strict system of oxygen control, paid attention to the upstream C4 plant raw material quality management, guaranteed measures and medium pressure steam temperature, appropriated to add resistance composite polymerization inhibitor and improved the quality of the solvent can extend the unit production cycle.%针对丁二烯装置生产中出现萃取精馏塔塔盘堵塞,运行周期短,严重制约装置经济效益发挥的问题,结合1,3-丁二烯爆米花状聚合物产生的机理,通过对垢样组成的分析,分析了装置结垢产生的原因,提出并采取了严格系统氧控制、注重上游装置碳四原料质量管理、保证中压蒸汽温度、适当添加复合阻聚剂以及改善溶剂品质等措施,延长了装置的生产运行周期。