AMINES BOILERS COMBINED CYCLE CONDUCTIVITY CORROSION HRSG POWER STEAM

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Abstract

As a result of the work by power companies, organizations such as EPRI/VGB/IAPWS, and the research of certain water treatment companies, strides have been made in understanding and preventing the corrosion mechanisms that have historically plagued the power industry. Still, the ever changing landscape in which the power industry operates, governed by economics, and environmental factors, and the quest for greater efficiency, creates new challenges in maintaining steam system protection.

Cycling operation in traditional fossil and combined-cycle plants have made downtime protection and suppression of corrosion and corrosion product transport a critical factor in plants that once operated continuously. Moreover, many utilities continue to struggle to maintain system-wide protection under continuous operation, particularly when addressing two-phase corrosion in heat-recovery steam generator (HRSG) systems and both air- and water-cooled condensers.

Modern film-forming amines, or polyamines, are seeing increasing use as corrosion inhibitors in both industrial and utility steam generating systems. This article will focus on the application of the volatile film-forming technology and present data about operations in a cycling combined-cycle power plant located in the United States.

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