High-temperature corrosion in gas turbine and steam boilers by fuel impurities. VI. A statistical study of the effects of sodium, temperature and additive on corrosion rate and slag friability

Conference · Fri Oct 01 04:00:00 EDT 1976 · J. Eng. Power; (United States)

OSTI ID:7129474

May, W R; Zetimeisl, M J; Annand, R R

Corrosion rate and slag friability data on several systems containing Na/sub 2/SO/sub 4/, V/sub 2/O/sub 5/, PbO, MgSO/sub 4/, and SiO/sub 2/ have been examined with a stepwise regression correlation procedure. Correlations were developed relating Na/V, additive/V and temperature as independent variables to corrosion rate and slag friability as dependent variables. The superiority of magnesium over silicon as a corrosion inhibitor was demonstrated while the opposite was shown for slag friability. A critical Na/V ratio was found for certain additive levels and temperature. Below this level, the corrosion rate can be reduced to a minimum. Threshold temperatures were also established. Above these temperatures, the corrosion rate cannot be reduced to zero regardless of the Na/V ratio.

• Research Organization: Petrolite Corp., St. Louis
• OSTI ID: 7129474
• Conference Information: Journal Name: J. Eng. Power; (United States) Journal Volume: 98:4
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104* -- Fossil-Fueled Power Plants-- Components
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALKALI METALS
ALKALINE EARTH METALS
BOILERS
CHEMICAL REACTIONS
CORROSION
CORROSION INHIBITORS
CORROSION PROTECTION
CORROSIVE EFFECTS
DATA ANALYSIS
ELEMENTS
FUELS
GAS TURBINES
HIGH TEMPERATURE
IMPURITIES
MAGNESIUM
METALS
PERFORMANCE TESTING
SEMIMETALS
SILICON
SLAGS
SODIUM
STEAM GENERATORS
TESTING
TRANSITION ELEMENTS
TURBINES
TURBOMACHINERY
VANADIUM
VAPOR GENERATORS