Development of a New Design for Corrosion Prevention in NH₄HS Environments

Abstract

NH₄HS corrosion has been a serious problem in oil refining plants. The corrosion rate dramatically increases over a certain concentration of NH₄HS. In high pressure plants such as hydrodesulfurization units which are operating in NH₄HS environments, leakage caused by corrosion could result in catastrophic disaster. Therefore, in the design phase, corrosion prevention techniques should be considered. In this study, a new design philosophy to prevent NH₄HS corrosion in a sour water environment was successfully developed based on simulation techniques.