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CAUSE ANALYSIS AND MEASURES ON SALT-OUT IN TOWER TOP OF THE CATALYTIC FRACTIONATOR
Author(s): 
Pages: 36-40
Year: Issue:  1
Journal: Qilu Petrochemical Technology

Keyword:  分馏塔催化结盐腐蚀洗塔预防;
Abstract: 因原油中氯离子含量严重超标,齐鲁炼油厂多套装置分馏塔及换热设备出现不同程度的结盐堵塞甚至腐蚀泄漏现象.经分析发现,第一催化裂化装置进料的四常减三线中氯离子含量升高明显,达80.27 mg/L,超出正常值10倍之多.结合第一催化裂化装置分馏塔结盐期间操作变化情况以及分馏塔在线洗塔及效果,找出了该分馏塔塔顶结盐原因.采取相应措施后,保证了分馏塔正常操作及产品质量的合格,实现了装置的长周期运行.
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