This article elaborates on the corrosion phenomenon at the top of the fractionator in 300×104t/a residual hydrocracking unit of Dalian Petrochemical Corporation.By calculat-ing the dew point temperature and analyzing the top operation deviation of stripper tower.The result show that there is a significant deviation between the stripper operating parameter and the design value,casuing incomplete removal of the H2S and NH3 by the stripping tower,leading to corrosion at the top of the fractionator.This article proposes suggestions based on corrosion mechanisms and economic benefits.
关键词
渣油加氢装置/腐蚀/汽提塔操作
Key words
residual hydrocracking unit/corrosion/operating of stripper
维普
万方数据