Industrial and municipal wastes produced in the western society are being increasingly destroyed and managed by controlled high temperature incineration. Depending on the chemical makeup of the waste stream and operational parameters of the incinerator, a variety of high temperature corrosive environments are generated. Typically most of the modem incineration systems consist of a high temperature incinerator chamber, a heat recovery system, a quench section to further reduce the temperature of the flue gas stream and a host of air pollution control equipment to scrub acidic gases and control the particulate emissions. This paper describes the development of a new nickel-base high chromium-high silicon alloy, which has shown good resistance to high temperature corrosion in incinerator environments. Some field test data are also presented.
Keywords: Alloy 45TM, UNS N06045, incineration, municipal waste, chemical waste, hazardous waste, superheater, molten salt attack