【摘要】 由于仪表控制、在线监测手段不断完善和高活性催化剂的研发应用,装置正常生产时能满足烟气中SO₂≯960 mg/m³国家标准要求,但装置停工过程中,尚存在烟气SO₂排放超标现象。2014年9月,洛阳分公司在装置传统停工程序方面进行优化创新,对Claus催化剂钝化期间产生的SO₂做回收处理,装置停工过程中烟囱烟气中SO₂排放≯600 mg/m³,硫磺回收装置停工一次,向大气减排SO₂总量约4⁶ t,具有显著的社会效益,在装置"清洁吹扫、绿色停工"方面总结了经验,为装置技术进步做了有益探索。更多还原

【Abstract】 Because of the application of instrument control,continuously improving online monitoring and high activity catalyst,SO₂ emission during normal processing of sulfur recovery unit can meet the national emission standard of not more than 960 mg/m³.But during the shutdown period of the unit,SO₂ emission may exceed the emission standard.In September 2014,through optimization and innovation of traditional shutdown procedures in Luoyang Branch Company,SO₂ from the process of Claus catalyst passivation was recovered and treated.SO₂ emission concentration was controlled at not more than 600 mg/m³ and the reduced SO₂ discharged to atmosphere was 4-6 t per shutdown.These measures brought obvious social benefits.This paper summed up the experience in the " clean purging and green shutdown",which makes beneficial exploration for technical progress of sulfur recovery unit.更多还原