Presentation Profile
Monitoring Cyanide in Sour Water with Ion Chromatography to Prevent Corrosion in Refineries
Currently Scheduled: 10/16/2019 - 1:45 PM - 2:15 PM
Room: Orchid Room
Main Author
Jay Gandhi - Metrohm USA
- Jay Sheffer - Metrohm USA
Abstract:
Corrosion of pipelines and refineries remain a major concern for the oil industry. As a result, corrosion monitoring is performed throughout the refinement process. After the initial desalting process, sour crude is sweetened by removing sulfur via amine treatment. Acidic gases such as SO2, SO3, CO2, NO, and NO2 can form Heat Stable Salts (HSS) in these amine treaters. Cyanide salts may also be formed, which are both toxic and severely corrosive. As a result, monitoring cyanide levels in sour water becomes an important part of a refinery’s effort to prevent corrosion. Ion exclusion chromatography (IC) is an ideal technique for cyanide measurement in this matrix down to five parts-per-million. This paper demonstrates the ability to perform these measurements using IC without interference from 3% H2S and without the need for any sample pretreatment.
