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原油中80%以上的硫集中在常压渣油中,这些硫化物的结构比较复杂,在高温条件特别是在催化剂的作用下,极易分解生成硫化氢和较小分子硫醇。当有水存在时,这些硫化氢和硫醇对铁质设备具有明显的腐蚀作用,在腐蚀过程中就能产生硫化亚铁,硫化亚铁在自然环境中,常温下能迅速和空气中的氧气反应并放出大量的热,热量积聚引起储罐等设施火灾爆炸事故,因此必须有一套完整的防护对策,确保含硫装置的安全。
More than 80% of the crude oil is concentrated in the atmospheric residue, the structure of these sulfides is more complex, under high temperature conditions, especially under the action of the catalyst, easily decomposed to generate hydrogen sulfide and smaller molecular thiols. In the presence of water, these hydrogen sulfide and mercaptan have a significant corrosion on iron equipment, ferrous sulfide can produce ferrous sulfide during the corrosion process, ferrous sulfide in the natural environment at room temperature can quickly and oxygen in the air Reaction and release a lot of heat, the accumulation of heat caused by storage tanks and other facilities fire and explosion accidents, it must have a complete set of protective measures to ensure the safety of sulfur-containing devices.