Corrosion control for crude unit overhead systems

摘要

Fouling and corrosion can threaten the reliability and safety of critical atmospheric fractionator overhead condensing systems. These problems often can impair production, raise maintenance costs and reduce profits. In addition, corrosion control is becoming more challenging as refiners around the world turn to lower-cost "opportunity" crude oil feedstocks and aim to maximize middle distillate production. Episodic pH variations in the overhead of the crude unit that are measured in the condensate water are often missed.