大港石化公司根据其酸性水汽提装置运行多年来所存在的问题,对双塔加压汽提工艺以及氨精制系统进行技术改造。通过对双塔操作的优化,提高装置的污水处理效果。同时对脱氨系统进行改进,采用二级冷凝,两段结晶工艺提高氨气的精制效果,有效地脱除了硫化氢,液氨达到工业氨成品标准,取得了较好的经济和社会效益。 Dagang Petrochemical Company in accordance with its acidic water stripping plant operation over the years the problems that exist, the two towers pressurized stripping process and ammonia refining system for technological transformation. Through the optimization of the operation of the twin towers, improve the sewage treatment plant. At the same time, the deamination system is improved. The secondary condensation and the two-stage crystallization process are used to improve the refining effect of ammonia gas. The hydrogen sulfide is effectively removed, and the liquid ammonia reaches the industrial ammonia product standard and achieves good economic and social benefits.