Corrosion of boiler tube alloys in cofiring of refuse derived fuel and pulverized coal

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6658171

Krause, H H; Stropki, J T ^[1]

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1. Battelle Columbus Div., Columbus, OH (US)

This paper reports on a corrosion test program conducted by exposing probes on the furnace wall, in the superheater, and at the precipitator inlet of a 65 MW pulverized coal boiler during both coal firing and cofiring of refuse derived fuel (RDF) and coal. Carbon steel, low alloy steels, and stainless steels were exposed for periods of 1,000, 2,000 and 3,000 hours. The corrosion rates of carbon steel and low alloy steels in the furnace zone were slightly lower during cofiring with RDF than during coal-only operation. There was an increase in corrosion rates of low alloy steels in the superheater during cofiring as a result of attack by sulfur, but there was no evidence of chlorine corrosion. The cofiring of RDF had little effect on the stainless steels. Alloys exposed at the precipitator inlet also showed little effect of RDF.

• OSTI ID: 6658171
• Report Number(s): CONF-890437--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200103* -- Fossil-Fueled Power Plants-- Waste-Fueled Systems
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALLOYS
BOILERS
CARBON STEELS
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLORINE
COAL
COCOMBUSTION
COMBUSTION
COMBUSTION PRODUCTS
CORROSION
CORROSIVE EFFECTS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALOGENS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
NONMETALS
OXIDATION
PERFORMANCE TESTING
REFUSE DERIVED FUELS
REFUSE-FUELED BOILERS
STAINLESS STEELS
STEELS
SULFUR
SUPERHEATERS
TESTING
THERMOCHEMICAL PROCESSES
TUBES