May 2012

Bonus Report: Corrosion Control

Control DEA corrosion in a gas refinery

Corrosion inhibitor selection and protective scales are key to prevention

Atash Jameh, A., Sarkhoon & Qeshm Gas Treating Company; Gharaghoosh, A. Z., Sarkhoon and Qeshm Gas Treating Company; Rashidfarokhi, A. R., Sarkhoon & Qeshm Gas Treating Co.,; Pakshir, M., Paydar, M. H., Shiraz University

The sweetening unit is a key component of the gas processing plant, and the amine regeneration tower is one of the major parts of this unit. The amine tower in the Sarkhoon gas plant in southern Iran has experienced severe corrosion [40–50 mils per year (mpy)] over a 2.5-year period. The corrosion area is limited to the vapor and vapor/liquid interface spaces. The material in this area is carbon steel (A-516-GR-70) and is located on the inside of the tower shell. A recent study investigated the cause of this corrosion, along with the corrosion’s tendency to move from the top trays of the tower to the bottom trays. The performance of the chosen corrosion inhibitor was also scruti

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