Corrosion in high pressure vessels, such as pipelines, furnaces, and steam generators, is influenced by composition (material and atmosphere), pressure, temperature and flow. To simulate the corrosion conditions in high pressure vessels, a simple system is necessary to control the parameters and measure instantaneous corrosion rates. This paper describes a simple, compact, and relatively inexpensive high-temperature, high-pressure rotating electrode (HTHPRE) system that can be used to control simultaneously pressure, temperature, and flow, and to measure instantaneous corrosion rates using electrochemical techniques. It can be used with corrosive gases, such as H2S and CO2.

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