ACES尿素装置在原来设计时,没有充分考虑原料CO2中爆炸性气体H2对装置安全的潜在威胁。爆炸性气体H2随原料CO2进入系统,导致系统内高、中压洗涤器中H2等惰性气体容易富集而进入爆炸区间,并多次发生爆炸现象。现增加脱氢装置一套,用来有效脱除原料CO2中的爆炸性气体H2,使得系统中富集的爆炸性气体远离爆炸极限,从而使尿素装置更加安全稳定运行。 ACES urea plant in the original design, did not give full consideration to the raw material CO2 in the explosive gas H2 potential threat to plant safety. Explosive gas H2 enters the system with the raw material CO2, resulting in that the inert gas such as H2 in the high and medium pressure scrubbers in the system is easily enriched and enters the explosion zone, and the explosion phenomenon occurs many times. Now a set of dehydrogenation device is added to effectively remove the explosive gas H2 in the raw material CO2 so as to keep the explosive gas enriched in the system far from the explosion limit so as to make the urea plant more safe and stable.