CORROSION OF BOILER TUBER ALLOYS IN REFUSE FIRING - SHREDDED VS BULK REFUSE

Results of corrosion probe exposures at two mass burning incinerators were compared with those conducted in a unit burning refuse-derived fu el. Tests were conducted with carbon steel, low-alloy steels, stainles s steels, and high nickel-chromium alloys. Corrosion rates at similar metal and gas temperatures were essentially the same for both types of fuel. Boiler tube performance in the waterwalls of other incinerators confirmed these results. Boiler design and operating conditions appea r to be more important factors in tube wastage than the extent of refu se processing.