压力式液体分布技术在350万t常减压装置的应用

摘要

中石化沧州分公司常减压装置减压塔塔径较小，未设置洗涤段，不能满足350万 t/a 加工负荷下的产品质量要求，采用 LPEC 研发的新型压力式液体分布技术，在不增加塔高的情况下，增加洗涤段，使侧线产品残炭和重金属含量大幅降低，显著改善产品质量同时降低全塔压降，使减压渣油得以进一步深拔，处理能力也得到部分提高。%Characteristics of atmospheric and vacuum distillation unit of Sinopec Cangzhou Company include relative short tower diameter of vacuum tower and without washing zone, it cannot meet the requirement to produce qualified products under 3.5 Mt/a processing load. Applying the new pressure liquid distribution technology developed by LPEC, and adding washing zones in the vacuum tower, sharply reduced carbon residue and heavy metal content in side-draw products, the quality of the product was significantly improved, and the pressure drop of the vacuum tower was reduced, vacuum residue was cut more deeply, the processing capacity was increased partially.