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51312-01358-Characterization of amines under high temperature and pressure conditions and their use for boiler w

Picture for Characterization of amines under high temperature and pressure conditions and their use for boiler w
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Product Number: 51312-01358-SG
ISBN: 01358 2012 CP
Author: Shintaro Mori
Publication Date: 2012
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$20.00
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Volatile amines have been widely used to adjust pH of condensate and feed water of industrial power boilers to minimize iron dissolution. Although the amines have lower corrosively to copper material compared with ammonia and known as effective inhibitors for flow-accelerated corrosion because of its lower volatility thermal stability is required not to decompose to organic acid at high temperature and pressure conditions. Various amines were characterized in the view of volatility dissociation degree and thermal stability. New experimental apparatus was developed to evaluate the amines up to 550 °C and 10 MPa of which simulates the condition at an exit of superheater and boiler internal. Hot pH and corrosion of copper material used at low-pressure heater and condenser were also examined. Feed and boiler water pHs are retained at desired values using selected low volatile and high thermally stable amines even though makeup water is contaminated with organic acids. Result and field application are also reported.
Volatile amines have been widely used to adjust pH of condensate and feed water of industrial power boilers to minimize iron dissolution. Although the amines have lower corrosively to copper material compared with ammonia and known as effective inhibitors for flow-accelerated corrosion because of its lower volatility thermal stability is required not to decompose to organic acid at high temperature and pressure conditions. Various amines were characterized in the view of volatility dissociation degree and thermal stability. New experimental apparatus was developed to evaluate the amines up to 550 °C and 10 MPa of which simulates the condition at an exit of superheater and boiler internal. Hot pH and corrosion of copper material used at low-pressure heater and condenser were also examined. Feed and boiler water pHs are retained at desired values using selected low volatile and high thermally stable amines even though makeup water is contaminated with organic acids. Result and field application are also reported.
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