Abstract

Sweet, Sour and Oxygen Corrosion in Industries

Industrial productions with harsh compositions and conditions, such as presence of hydrogen sulfide, carbon dioxide, and dissolved oxygen, makes corrosion a major concern. In the present challenging economic climate, the cost of corrosion with regards to HSE, capital expenditure and operation expenditure have become highly important and needs serious consideration for the means to control it. This requires understanding the root cause and mechanisms of corrosion.

This presentation will discuss few basic concepts, field-base cases of corrosion related failures, key parameters of sweet, sour and oxygen corrosion and behavior of few corrosion resistant alloys (CRAs), commonly used in industries. These case histories will emphasize the mechanism through which above-mentioned corrosive species aggravate the corrosion problem and adversely affect the reliability of the metals. A better understanding of the likely corrosion mechanisms and material behaviors, may help engineers and researchers in appropriate selection of the materials, improvements in the design and maintenance, and finding remedial measures to improve the service life of the machines.