Corrosion problems and solutions at oil refinery and petrochemical units

Abstract

Specific corrosion problems of sulfur compounds, hydrogen gas, naphthenic acids, and amine solutions, physicochemical mechanisms, anti-corrosion and monitoring measures are described. Sulfidic corrosion and hydrogen attack can occur both at low and high temperatures. Naphthenic acid corrosion occurs only at high (190 °C < T < 360 °C) temperatures. Amine solutions are corrosive at*100–130 °C. Case studies at refineriesʼ units are analyzed and solutions are given.