论文部分内容阅读
含硫石脑油在裂解炉中裂解后通过碱洗塔除去裂解气中含有的酸性气体H2S等,而硫化氢气体在没有氧气存在的条件下与碱洗塔塔壁铁的腐蚀产物反应,主要产物硫化亚铁,硫化亚铁具有较高的自然氧化活性,在室温下可迅速与空气中的氧气反应,同时放出大量的热量,叠加碱洗塔塔壁的油质结焦物,引发生火灾事故。
Sulfur-containing naphtha is cracked in a cracking furnace to remove the acid gas H2S and the like contained in the cracked gas by a caustic washing tower, and the hydrogen sulfide gas reacts with the corrosion product of the caustic tower wall iron in the absence of oxygen, Products of ferrous sulfide, ferrous sulfide has a high natural oxidation activity at room temperature can quickly react with the oxygen in the air, while releasing a lot of heat, superimposed caustic soda tower wall coke, causing a fire accident .