尿素装置低负荷运行时缩二脲超标的解决方法

Solution for Diuret Overweight During Urea Plants Operating at Low Load

针对二氧化碳汽提法尿素生产装置在低负荷运行时缩二脲超标的问题,分析了生成缩二脲的主要影响因素,提出了抑制缩二脲生成的工艺方案,经生产验证,结果达到国家标准的要求。

For the problem of diurea overweight during urea plants operating at low load by using carbon dioxide stripping method to produce urea, the main factors generating diuret were analysized. The measurement supressing the generate of diburet was supposed. Through practice, the results reached the national standard.