The boiler of the 2nd-phasse project in Dongting Fertilizer Plant was chemically washed using hydrochloric acid, which as supplemented by water wash, caustic wash, acid wash and passivation.

• 洞庭氮肥厂热电厂二期工程锅炉采用盐酸进行了化学清洗 ,并采用五回路和水洗、碱洗、酸洗、钝化工艺 ,取得了良好效果。