摘要
炼油厂常压蒸馏装置的常压塔运行介质原油中夹带杂质，导致产生低温ＨＣＩ－Ｈ２Ｓ－Ｈ２Ｏ腐蚀、硫及硫化物腐蚀和高温环烷酸腐蚀，其中以高温环烷酸腐蚀尤为突出。防止低温 ＨＣｌ－Ｈ２Ｓ－Ｈ２Ｏ腐蚀常采取原油深度脱盐，脱（盐）后注碱，塔顶挥发线注氨、注缓蚀剂和注水等防腐工艺；防止高温环烷酸腐蚀可将常压塔的主体材料采用２０Ｒ＋３１６Ｌ复合钢板，常压塔内件采用普通碳钢渗铝材料。中原 ２５０×１０４ｔ／ａ常压蒸馏装置的常压塔下部塔体制造时采用 ２０Ｒ＋３１６Ｌ复合钢板来防止环烷酸腐蚀。
Because of impurities carried in the working medium of the atmospheric distillation tower in the refinery, various corrosions are produced, including low-temperature HC1-H2S-H2O corrosion, sulphur and sulfide corrosion and high-temperature naphthene acid corrosion, of all the naphthene acid corrosion is the most serious. In order to prevent the high-temperature naphthene acid corrosion, 20R+3 16L compound steel plate is used as the main material of the atmospheric distillation tower, and the internal components of the tower adopt the calorized carbon steel as raw material.
出处
《石油机械》
北大核心
2001年第11期47-48,51,共3页
China Petroleum Machinery
关键词
炼油
常压塔
腐蚀
防腐
选材
Subject Concept Terms atmospheric distillation tower corrosion anti-corrosion material selection
